Article(id=1215700946496180821, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1215700941538509036, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202402036, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1708358400000, receivedDateStr=2024-02-20, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1767775292276, onlineDateStr=2026-01-07, pubDate=1721836800000, pubDateStr=2024-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1767775292276, onlineIssueDateStr=2026-01-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1767775292276, creator=13701087609, updateTime=1767775292276, updator=13701087609, issue=Issue{id=1215700941538509036, tenantId=1146029695717560320, journalId=1210938733613449225, year='2024', volume='53', issue='7', pageStart='1', pageEnd='158', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1767775291094, creator=13701087609, updateTime=1767775458121, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1215701642159243949, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1215700941538509036, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1215701642159243950, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1215700941538509036, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=135, endPage=142, ext={EN=ArticleExt(id=1215700947628642943, articleId=1215700946496180821, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Regulating acid sites by transition metals to promote C-H bond cracking ability of Pd catalysts for methane complete combustion performance improvement, columnId=1211002405299294959, journalTitle=Thermal Power Generation, columnName=Thermal energy science research, runingTitle=null, highlight=null, articleAbstract=

Methane is one of the main components of atmospheric pollutants, which is challenging to be eliminated by catalytic oxidation under mild conditions because of its tetrahedral structure stability. In this work, the acidic sites of Pd-based catalysts are modified by introducing transition metals (Cr, Mo, W) to promote the cleavage of C-H bonds and therefore to enhance the catalytic oxidation performance of methane. The oxygen vacancies, acidity and redox property of prepared catalysts are systematically characterized by XRD, Raman, H2-TPR and NH3-TPD techniques. The results show that, the transition metal modification increases the acidic site of Pd catalysts obviously, and the modified PdM catalysts have a higher amount of oxygen vacancies. However, only Mo modified PdMo catalyst exhibits better redox performance, while Cr and W modified PdCr and PdW catalysts show slightly lower redox performance. The results of the methane oxidation reaction confirm that the PdMo catalyst with moderate acidic sites displays excellent performance in the methane oxidation reaction, and its T90 decreases by about 150 ℃, while the PdCr and PdW catalysts with more and less acidic sites show lower methane oxidation activity. The results indicate that the number of acid sites and the redox properties of the catalyst jointly determine the methane oxidation performance. This conclusion provides critical insights for design and preparation of catalysts for complete oxidation of methane at low temperatures.

, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Lianghui XIA, Jingjing WANG, Yanfei JIAN, Yujie LIU, Chi HE), CN=ArticleExt(id=1215700951277687562, articleId=1215700946496180821, tenantId=1146029695717560320, journalId=1210938733613449225, language=CN, title=过渡金属调节酸性位点促进钯催化剂C-H键裂解能力提高甲烷完全燃烧性能, columnId=1211002405437706993, journalTitle=热力发电, columnName=热能科学研究, runingTitle=null, highlight=null, articleAbstract=

甲烷作为主要大气污染物之一,因其具有稳定的四面体分子结构,给其在温和条件下的催化氧化消除带来巨大挑战。旨在通过引入过渡金属(Cr、Mo、W)改性Pd基催化剂的酸性位点,促进C-H键的裂解,以增强甲烷催化氧化性能。通过XRD、Raman、H2-TPR、NH3-TPD等多种表征手段对催化剂的氧空位、酸性及氧化还原性能进行了系统探究。结果表明:过渡金属改性使得Pd催化剂的酸性位点显著增加,且过渡金属改性的PdM催化剂具有更高的氧空位数量;Mo改性的PdMo催化剂表现出更优异的氧化还原性能,而Cr和W改性的PdCr及PdW催化剂的氧化还原性能稍有下降;甲烷氧化反应结果表明,酸性位点适中的PdMo催化剂具有最优异的甲烷氧化性能,其T90温度较Pd催化剂降低约150 ℃,且表现出更好的反应稳定性;然而,酸性位点数量较多或较少的PdCr及PdW催化剂表现出较低的甲烷氧化活性,说明催化剂的酸性位点数量和氧化还原性能共同决定了其甲烷氧化性能。该结论为设计制备用于甲烷完全氧化的低温高效催化剂提供了思路。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
何炽(1982),男,博士,教授,主要研究方向为大气污染控制技术,
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=BKqshRjrhYLcBnwPZeMAyg==, magXml=nSSv4y+Cu6bcoAEddFFf9Q==, pdfUrl=null, pdf=0RhlNBrW6yZe0AfQ1aSVeQ==, pdfFileSize=1190359, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=57ioEpy1pYmfwql+fHUxyg==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=7x9GKDCekdq8G1IgV0L8xQ==, mapNumber=null, authorCompany=null, fund=null, authors=

夏良辉(1995),男,博士研究生,主要研究方向为低碳烷烃类VOCs氧化消除技术,

, authorsList=夏良辉, 王晶晶, 建艳飞, 刘昱洁, 何炽)}, authors=[Author(id=1215700951739061042, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=271036329@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1215700951915221826, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700951739061042, language=EN, stringName=Lianghui XIA, firstName=Lianghui, middleName=null, lastName=XIA, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1215700952020079431, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700951739061042, language=CN, stringName=夏良辉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049, bio={"content":"

夏良辉(1995),男,博士研究生,主要研究方向为低碳烷烃类VOCs氧化消除技术,

"}, bioImg=null, bioContent=

夏良辉(1995),男,博士研究生,主要研究方向为低碳烷烃类VOCs氧化消除技术,

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1215700951529345820, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=1., ext=[AuthorCompanyExt(id=1215700951533540127, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China), AuthorCompanyExt(id=1215700951541928734, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049)])]), Author(id=1215700952099771218, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1215700952254960477, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700952099771218, language=EN, stringName=Jingjing WANG, firstName=Jingjing, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1215700952435315558, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700952099771218, language=CN, stringName=王晶晶, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1215700951529345820, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=1., ext=[AuthorCompanyExt(id=1215700951533540127, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China), AuthorCompanyExt(id=1215700951541928734, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049)])]), Author(id=1215700952535978860, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1215700952674390904, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700952535978860, language=EN, stringName=Yanfei JIAN, firstName=Yanfei, middleName=null, lastName=JIAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1215700952796025735, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700952535978860, language=CN, stringName=建艳飞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1215700951529345820, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=1., ext=[AuthorCompanyExt(id=1215700951533540127, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China), AuthorCompanyExt(id=1215700951541928734, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049)])]), Author(id=1215700952921854867, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1215700953047684000, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700952921854867, language=EN, stringName=Yujie LIU, firstName=Yujie, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1215700953198678952, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700952921854867, language=CN, stringName=刘昱洁, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1215700951529345820, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=1., ext=[AuthorCompanyExt(id=1215700951533540127, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China), AuthorCompanyExt(id=1215700951541928734, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049)])]), Author(id=1215700953295147953, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=chi_he@xjtu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1215700953416782779, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700953295147953, language=EN, stringName=Chi HE, firstName=Chi, middleName=null, lastName=HE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, 2, address=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
2.National Engineering Laboratory for VOCs Pollution Control Material & Technology, Beijing 101408, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1215700953504863171, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, authorId=1215700953295147953, language=CN, stringName=何炽, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, 2, address=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049
2.挥发性有机物污染控制材料与技术国家工程实验室,北京 101408, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1215700951529345820, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=1., ext=[AuthorCompanyExt(id=1215700951533540127, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China), AuthorCompanyExt(id=1215700951541928734, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049)]), AuthorCompany(id=1215700951625814822, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=2., ext=[AuthorCompanyExt(id=1215700951634203431, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951625814822, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.National Engineering Laboratory for VOCs Pollution Control Material & Technology, Beijing 101408, China), AuthorCompanyExt(id=1215700951638397736, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951625814822, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.挥发性有机物污染控制材料与技术国家工程实验室,北京 101408)])])], keywords=[Keyword(id=1215700953672635347, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, orderNo=1, keyword=methane), Keyword(id=1215700954540856284, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, orderNo=2, keyword=Pd catalysts), Keyword(id=1215700954620548069, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, orderNo=3, keyword=transition metal), Keyword(id=1215700954737988590, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, orderNo=4, keyword=acidic site), Keyword(id=1215700954842846197, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, orderNo=5, keyword=redox property), Keyword(id=1215700954960286717, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, orderNo=1, keyword=甲烷), Keyword(id=1215700955107086339, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, orderNo=2, keyword=钯催化剂), Keyword(id=1215700955211943945, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, orderNo=3, keyword=过渡金属), Keyword(id=1215700955337773074, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, orderNo=4, keyword=酸性位点), Keyword(id=1215700955442630680, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, orderNo=5, keyword=氧化还原性能)], refs=[Reference(id=1215700958106013874, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=51, issue=1, pageStart=196, pageEnd=202, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=曲立涛, 于洪海, 李超, journalName=热力发电, refType=null, unstructuredReference=曲立涛, 于洪海, 李超, 等. 超低排放煤电机组主要大气污染物排放分析[J]. 热力发电, 2022, 51(1): 196-202., articleTitle=超低排放煤电机组主要大气污染物排放分析, refAbstract=null), Reference(id=1215700958181511353, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=51, issue=1, pageStart=196, pageEnd=202, url=null, language=null, rfNumber=[1], rfOrder=1, authorNames=QU Litao, YU Honghai, LI Chao, journalName=Thermal Power Generation, refType=null, unstructuredReference=QU Litao, YU Honghai, LI Chao, et al. Emission analysis of main air pollutants from ultra-low emission coal-fired power units[J]. Thermal Power Generation, 2022, 51(1): 196-202., articleTitle=Emission analysis of main air pollutants from ultra-low emission coal-fired power units, refAbstract=null), Reference(id=1215700958294757566, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2005, volume=23, issue=3, pageStart=37, pageEnd=39, url=null, language=null, rfNumber=[2], rfOrder=2, authorNames=杨小平, 刘亚宁, 唐兰, journalName=环境工程, refType=null, unstructuredReference=杨小平, 刘亚宁, 唐兰, 等. 低温等离子体氧化甲烷的实验研究[J]. 环境工程, 2005, 23(3): 37-39., articleTitle=低温等离子体氧化甲烷的实验研究, refAbstract=null), Reference(id=1215700958382837954, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2005, volume=23, issue=3, pageStart=37, pageEnd=39, url=null, language=null, rfNumber=[2], rfOrder=3, authorNames=YANG Xiaoping, LIU Yaning, TANG Lan, journalName=Environmental Engineering, refType=null, unstructuredReference=YANG Xiaoping, LIU Yaning, TANG Lan, et al. Experimental study on methane oxidation by low temperature plasma[J]. Environmental Engineering, 2005, 23(3): 37-39., articleTitle=Experimental study on methane oxidation by low temperature plasma, refAbstract=null), Reference(id=1215700958479306954, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=43, issue=3, pageStart=394, pageEnd=404, url=null, language=null, rfNumber=[3], rfOrder=4, authorNames=陈晓迈, 石雪风, 刘美茵, journalName=环境科学学报, refType=null, unstructuredReference=陈晓迈, 石雪风, 刘美茵, 等. 封装型Pd@S-1催化剂中Pd状态对低浓度甲烷催化氧化性能的影响[J]. 环境科学学报, 2023, 43(3): 394-404., articleTitle=封装型Pd@S-1催化剂中Pd状态对低浓度甲烷催化氧化性能的影响, refAbstract=null), Reference(id=1215700959737598157, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=43, issue=3, pageStart=394, pageEnd=404, url=null, language=null, rfNumber=[3], rfOrder=5, authorNames=CHEN Xiaomai, SHI Xuefeng, LIU Meiyin, journalName=Acta Scientiae Circumstantiae, refType=null, unstructuredReference=CHEN Xiaomai, SHI Xuefeng, LIU Meiyin, et al. The effect of Pd state of encapsulated Pd@S-1 catalyst on the catalytic oxidation performance of low concentration methane[J]. Acta Scientiae Circumstantiae, 2023, 43(3): 394-404., articleTitle=The effect of Pd state of encapsulated Pd@S-1 catalyst on the catalytic oxidation performance of low concentration methane, refAbstract=null), Reference(id=1215700959867621589, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=51, issue=6, pageStart=89, pageEnd=95, url=null, language=null, rfNumber=[4], rfOrder=6, authorNames=张亚竹, 黄朱犇, 黄军, journalName=热力发电, refType=null, unstructuredReference=张亚竹, 黄朱犇, 黄军, 等. 非预热条件下甲烷与丙烷无焰燃烧的实现及对比研究[J]. 热力发电, 2022, 51(6): 89-95., articleTitle=非预热条件下甲烷与丙烷无焰燃烧的实现及对比研究, refAbstract=null), Reference(id=1215700959972479193, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=51, issue=6, pageStart=89, pageEnd=95, url=null, language=null, rfNumber=[4], rfOrder=7, authorNames=ZHANG Yazhu, HUANG Zhuben, HUANG Jun, journalName=Thermal Power Generation, refType=null, unstructuredReference=ZHANG Yazhu, HUANG Zhuben, HUANG Jun, et al. Realization and comparison of flameless combustion of CH4 and C3H8 under un-preheating condition[J]. Thermal Power Generation, 2022, 51(6): 89-95., articleTitle=Realization and comparison of flameless combustion of CH4 and C3H8 under un-preheating condition, refAbstract=null), Reference(id=1215700960089919714, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2017, volume=46, issue=3, pageStart=1, pageEnd=6, url=null, language=null, rfNumber=[5], rfOrder=8, authorNames=陈冬林, 叶托, 李恒, journalName=热力发电, refType=null, unstructuredReference=陈冬林, 叶托, 李恒. 低NOx燃烧技术研究现状及进展[J]. 热力发电, 2017, 46(3): 1-6., articleTitle=低NOx燃烧技术研究现状及进展, refAbstract=null), Reference(id=1215700960203165925, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2017, volume=46, issue=3, pageStart=1, pageEnd=6, url=null, language=null, rfNumber=[5], rfOrder=9, authorNames=CHEN Donglin, YE Tuo, LI Heng, journalName=Thermal Power Generation, refType=null, unstructuredReference=CHEN Donglin, YE Tuo, LI Heng. Review on low NOx combustion techniques[J]. Thermal Power Generation, 2017, 46(3): 1-6., articleTitle=Review on low NOx combustion techniques, refAbstract=null), Reference(id=1215700960324800746, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=37, issue=3, pageStart=75, pageEnd=87, url=null, language=null, rfNumber=[6], rfOrder=10, authorNames=杨沁, 徐晗, 赵亚若, journalName=能源环境保护, refType=null, unstructuredReference=杨沁, 徐晗, 赵亚若, 等. 贵金属(Pt、Pd和Ru)基催化剂在含氯挥发性有机物催化降解中的研究进展[J]. 能源环境保护, 2023, 37(3): 75-87., articleTitle=贵金属(Pt、Pd和Ru)基催化剂在含氯挥发性有机物催化降解中的研究进展, refAbstract=null), Reference(id=1215700960391909612, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=37, issue=3, pageStart=75, pageEnd=87, url=null, language=null, rfNumber=[6], rfOrder=11, authorNames=YANG Qin, XU Han, ZHAO Yaruo, journalName=Energy Environmental Protection, refType=null, unstructuredReference=YANG Qin, XU Han, ZHAO Yaruo, et al. Research progress of noble metal (Pt, Pd, and Ru)-based catalysts for catalytic decomposition of chlorine-containing volatile organic compounds[J]. Energy Environmental Protection, 2023, 37(3): 75-87., articleTitle=Research progress of noble metal (Pt, Pd, and Ru)-based catalysts for catalytic decomposition of chlorine-containing volatile organic compounds, refAbstract=null), Reference(id=1215700960484184303, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2018, volume=47, issue=2, pageStart=71, pageEnd=77, url=null, language=null, rfNumber=[7], rfOrder=12, authorNames=金奇杰, 陶兴军, 潘有春, journalName=热力发电, refType=null, unstructuredReference=金奇杰, 陶兴军, 潘有春, 等. Y3+和La3+改性对CeO2(ZrO2)/TiO2催化剂脱硝性能的影响[J]. 热力发电, 2018, 47(2): 71-77., articleTitle=Y3+和La3+改性对CeO2(ZrO2)/TiO2催化剂脱硝性能的影响, refAbstract=null), Reference(id=1215700960576458994, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2018, volume=47, issue=2, pageStart=71, pageEnd=77, url=null, language=null, rfNumber=[7], rfOrder=13, authorNames=JIN Qijie, TAO Xingjun, PAN Youchun, journalName=Thermal Power Generation, refType=null, unstructuredReference=JIN Qijie, TAO Xingjun, PAN Youchun, et al. Effect of Y3+ and La3+ on catalytic performance of CeO2(ZrO2)/TiO2 catalyst during selective catalytic reduction of NOx[J]. Thermal Power Generation, 2018, 47(2): 71-77., articleTitle=Effect of Y3+ and La3+ on catalytic performance of CeO2(ZrO2)/TiO2 catalyst during selective catalytic reduction of NOx, refAbstract=null), Reference(id=1215700960639373559, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=1999, volume=47, issue=1, pageStart=229, pageEnd=234, url=null, language=null, rfNumber=[8], rfOrder=14, authorNames=BURCH R, CRITTLE D, HAYES M, journalName=Catalysis Today, refType=null, unstructuredReference=BURCH R, CRITTLE D, HAYES M. C-H bond activation in hydrocarbon oxidation on heterogeneous catalysts[J]. Catalysis Today, 1999, 47(1): 229-234., articleTitle=C-H bond activation in hydrocarbon oxidation on heterogeneous catalysts, refAbstract=null), Reference(id=1215700960723259644, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2020, volume=142, issue=40, pageStart=17119, pageEnd=17130, url=null, language=null, rfNumber=[9], rfOrder=15, authorNames=HE Y L, GUO F C, YANG K, journalName=Journal of the American Chemical Society, refType=null, unstructuredReference=HE Y L, GUO F C, YANG K, et al. In situ identification of reaction intermediates and mechanistic understandings of methane oxidation over hematite: a combined experimental and theoretical study[J]. Journal of the American Chemical Society, 2020, 142(40): 17119-17130., articleTitle=In situ identification of reaction intermediates and mechanistic understandings of methane oxidation over hematite: a combined experimental and theoretical study, refAbstract=null), Reference(id=1215700960798757120, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=50, issue=2, pageStart=180, pageEnd=194, url=null, language=null, rfNumber=[10], rfOrder=16, authorNames=楚培齐, 王赛飞, 赵世广, journalName=燃料化学学报, refType=null, unstructuredReference=楚培齐, 王赛飞, 赵世广, 等. 甲烷催化燃烧反应机理及催化剂研究进展[J]. 燃料化学学报, 2022, 50(2): 180-194., articleTitle=甲烷催化燃烧反应机理及催化剂研究进展, refAbstract=null), Reference(id=1215700960878448899, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=50, issue=2, pageStart=180, pageEnd=194, url=null, language=null, rfNumber=[10], rfOrder=17, authorNames=CHU Peiqi, WANG Saifei, ZHAO Shiguang, journalName=Journal of Fuel Chemistry and Technology, refType=null, unstructuredReference=CHU Peiqi, WANG Saifei, ZHAO Shiguang, et al. Research progress of reaction mechanism and catalysts on catalytic methane combustion[J]. Journal of Fuel Chemistry and Technology, 2022, 50(2): 180-194., articleTitle=Research progress of reaction mechanism and catalysts on catalytic methane combustion, refAbstract=null), Reference(id=1215700960974917899, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=134, issue=27, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[11], rfOrder=18, authorNames=HOU Z Q, DAI L Y, DENG J G, journalName=Angewandte Chemie, refType=null, unstructuredReference=HOU Z Q, DAI L Y, DENG J G, et al. Electronically engineering water resistance in methane combustion with an atomically dispersed tungsten on PDO catalyst[J]. Angewandte Chemie, 2022, 134(27): e202201655., articleTitle=Electronically engineering water resistance in methane combustion with an atomically dispersed tungsten on PDO catalyst, refAbstract=null), Reference(id=1215700961079775504, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2021, volume=50, issue=10, pageStart=124, pageEnd=129, url=null, language=null, rfNumber=[12], rfOrder=19, authorNames=向小凤, 张波, 张向宇, journalName=热力发电, refType=null, unstructuredReference=向小凤, 张波, 张向宇, 等. 烟气中Ce-Cu/γ-Al2O3催化剂催化CO氧化性能的研究[J]. 热力发电, 2021, 50(10): 124-129., articleTitle=烟气中Ce-Cu/γ-Al2O3催化剂催化CO氧化性能的研究, refAbstract=null), Reference(id=1215700961176244500, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2021, volume=50, issue=10, pageStart=124, pageEnd=129, url=null, language=null, rfNumber=[12], rfOrder=20, authorNames=XIANG Xiaofeng, ZHANG Bo, ZHANG Xiangyu, journalName=Thermal Power Generation, refType=null, unstructuredReference=XIANG Xiaofeng, ZHANG Bo, ZHANG Xiangyu, et al. Study on CO oxidation performance of Ce-Cu/γ-Al2O3 catalyst in flue gas[J]. Thermal Power Generation, 2021, 50(10): 124-129., articleTitle=Study on CO oxidation performance of Ce-Cu/γ-Al2O3 catalyst in flue gas, refAbstract=null), Reference(id=1215700961251741976, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2016, volume=45, issue=1, pageStart=37, pageEnd=41, url=null, language=null, rfNumber=[13], rfOrder=21, authorNames=张光学, 周安琪, 范海燕, journalName=热力发电, refType=null, unstructuredReference=张光学, 周安琪, 范海燕, 等. 铁铈氧化物催化剂脱硝性能及抗碱金属盐中毒性能研究[J]. 热力发电, 2016, 45(1): 37-41., articleTitle=铁铈氧化物催化剂脱硝性能及抗碱金属盐中毒性能研究, refAbstract=null), Reference(id=1215700961331433756, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2016, volume=45, issue=1, pageStart=37, pageEnd=41, url=null, language=null, rfNumber=[13], rfOrder=22, authorNames=ZHANG Guangxue, ZHOU Anqi, FAN Haiyan, journalName=Thermal Power Generation, refType=null, unstructuredReference=ZHANG Guangxue, ZHOU Anqi, FAN Haiyan, et al. Performance of Fe-Ce oxide denitration catalyst and its resistance to toxicity[J]. Thermal Power Generation, 2016, 45(1): 37-41., articleTitle=Performance of Fe-Ce oxide denitration catalyst and its resistance to toxicity, refAbstract=null), Reference(id=1215700961406931233, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=32, issue=null, pageStart=122151, pageEnd=122166, url=null, language=null, rfNumber=[14], rfOrder=23, authorNames=LIU S M, XUE W J, JI Y J, journalName=Applied Catalysis B: Environmental, refType=null, unstructuredReference=LIU S M, XUE W J, JI Y J, et al. Interfacial oxygen vacancies at Co3O4-CeO2 heterointerfaces boost the catalytic reduction of NO by CO in the presence of O2[J]. Applied Catalysis B: Environmental, 2023, 32: 122151-122166., articleTitle=Interfacial oxygen vacancies at Co3O4-CeO2 heterointerfaces boost the catalytic reduction of NO by CO in the presence of O2, refAbstract=null), Reference(id=1215700961528566055, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=144, issue=11, pageStart=5108, pageEnd=5115, url=null, language=null, rfNumber=[15], rfOrder=24, authorNames=ZHANG J, WANG M, GAO Z R, journalName=Journal of the American Chemical Society, refType=null, unstructuredReference=ZHANG J, WANG M, GAO Z R, et al. Importance of species heterogeneity in supported metal catalysts[J]. Journal of the American Chemical Society, 2022, 144(11): 5108-5115., articleTitle=Importance of species heterogeneity in supported metal catalysts, refAbstract=null), Reference(id=1215700961629229358, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=41, issue=3, pageStart=587, pageEnd=596, url=null, language=null, rfNumber=[16], rfOrder=25, authorNames=田明姣, 黄宇, 杨沁, journalName=中国稀土学报, refType=null, unstructuredReference=田明姣, 黄宇, 杨沁, 等. CeO2的形貌构筑及其对1,2-二氯乙烷氧化过程的影响研究[J]. 中国稀土学报, 2023, 41(3): 587-596., articleTitle=CeO2的形貌构筑及其对1,2-二氯乙烷氧化过程的影响研究, refAbstract=null), Reference(id=1215700961729892661, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=41, issue=3, pageStart=587, pageEnd=596, url=null, language=null, rfNumber=[16], rfOrder=26, authorNames=TIAN Mingjiao, HUANG Yu, YANG Qin, journalName=Journal of The Chinese Society of Rare Earths, refType=null, unstructuredReference=TIAN Mingjiao, HUANG Yu, YANG Qin, et al. Morphological configuration of CeO2 and effect on oxidation process of 1,2-dichloroethane[J]. Journal of The Chinese Society of Rare Earths, 2023, 41(3): 587-596., articleTitle=Morphological configuration of CeO2 and effect on oxidation process of 1,2-dichloroethane, refAbstract=null), Reference(id=1215700961813778748, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2024, volume=461, issue=null, pageStart=132509, pageEnd=132521, url=null, language=null, rfNumber=[17], rfOrder=27, authorNames=XIA L H, XU S, JIAN Y F, journalName=Journal of Hazardous Materials, refType=null, unstructuredReference=XIA L H, XU S, JIAN Y F, et al. Efficient propane mineralization over unsaturated Pd cluster/CeO2 with prominent C-C cleavage capacity driven by inherent oxygen activation ability[J]. Journal of Hazardous Materials, 2024, 461: 132509-132521., articleTitle=Efficient propane mineralization over unsaturated Pd cluster/CeO2 with prominent C-C cleavage capacity driven by inherent oxygen activation ability, refAbstract=null), Reference(id=1215700961901859140, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2020, volume=278, issue=null, pageStart=119304, pageEnd=119319, url=null, language=null, rfNumber=[18], rfOrder=28, authorNames=JIANG Z Y, JING M Z, FENG X B, journalName=Applied Catalysis B: Environmental, refType=null, unstructuredReference=JIANG Z Y, JING M Z, FENG X B, et al. Stabilizing platinum atoms on CeO2 oxygen vacancies by metal-support interaction induced interface distortion: mechanism and application[J]. Applied Catalysis B: Environmental, 2020, 278: 119304-119319., articleTitle=Stabilizing platinum atoms on CeO2 oxygen vacancies by metal-support interaction induced interface distortion: mechanism and application, refAbstract=null), Reference(id=1215700962019299662, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2018, volume=1, issue=9, pageStart=4988, pageEnd=4997, url=null, language=null, rfNumber=[19], rfOrder=29, authorNames=YOU R, LI Z R, CAI T, journalName=ACS Applied Nano Materials, refType=null, unstructuredReference=YOU R, LI Z R, CAI T, et al. Synthesis in a glovebox: utilizing surface oxygen vacancies to enhance the atomic dispersion of palladium on ceria for carbon monoxide oxidation and propane[J]. ACS Applied Nano Materials, 2018, 1(9): 4988-4997., articleTitle=Synthesis in a glovebox: utilizing surface oxygen vacancies to enhance the atomic dispersion of palladium on ceria for carbon monoxide oxidation and propane, refAbstract=null), Reference(id=1215700962128351574, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2020, volume=401, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[20], rfOrder=30, authorNames=MA M D, YANG R, HE C, journalName=Journal of Hazardous Materials, refType=null, unstructuredReference=MA M D, YANG R, HE C, et al. Pd-based catalysts promoted by hierarchical porous Al2O3 and ZnO microsphere supports/coatings for ethyl acetate highly active and stable destruction[J]. Journal of Hazardous Materials, 2020, 401: 123281., articleTitle=Pd-based catalysts promoted by hierarchical porous Al2O3 and ZnO microsphere supports/coatings for ethyl acetate highly active and stable destruction, refAbstract=null), Reference(id=1215700962212237660, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=31, issue=9, pageStart=56, pageEnd=59, url=null, language=null, rfNumber=[21], rfOrder=31, authorNames=王晓亮, journalName=工业催化, refType=null, unstructuredReference=王晓亮. 双金属催化剂还原性能研究[J]. 工业催化, 2023, 31(9): 56-59., articleTitle=双金属催化剂还原性能研究, refAbstract=null), Reference(id=1215700962296123746, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=31, issue=9, pageStart=56, pageEnd=59, url=null, language=null, rfNumber=[21], rfOrder=32, authorNames=WANG Xiaoliang, journalName=Industrial Catalysis, refType=null, unstructuredReference=WANG Xiaoliang. Investigation on reduction performance of bimetallic catalyst[J]. Industrial Catalysis, 2023, 31(9): 56-59., articleTitle=Investigation on reduction performance of bimetallic catalyst, refAbstract=null), Reference(id=1215700962371621223, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=126, issue=null, pageStart=459, pageEnd=469, url=null, language=null, rfNumber=[22], rfOrder=33, authorNames=CHU P Q, WANG S F, ZHANG Y, journalName=Journal of Environmental Sciences, refType=null, unstructuredReference=CHU P Q, WANG S F, ZHANG Y, et al. Component regulation in novel La-Co-O-C composite catalyst for boosted redox reactions and enhanced thermal stability in methane combustion[J]. Journal of Environmental Sciences, 2023, 126: 459-469., articleTitle=Component regulation in novel La-Co-O-C composite catalyst for boosted redox reactions and enhanced thermal stability in methane combustion, refAbstract=null), Reference(id=1215700962489061743, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2019, volume=375, issue=null, pageStart=122023, pageEnd=122035, url=null, language=null, rfNumber=[23], rfOrder=34, authorNames=XU S Y, XIE F Q, XIE H M, journalName=Chemical Engineering Journal, refType=null, unstructuredReference=XU S Y, XIE F Q, XIE H M, et al. Effect of structure and composition on the CO2 hydrogenation properties over bimodal mesoporous CeCo composite catalyst[J]. Chemical Engineering Journal, 2019, 375: 122023-122035., articleTitle=Effect of structure and composition on the CO2 hydrogenation properties over bimodal mesoporous CeCo composite catalyst, refAbstract=null), Reference(id=1215700962568753522, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2021, volume=2, issue=null, pageStart=2100058, pageEnd=2100083, url=null, language=null, rfNumber=[24], rfOrder=35, authorNames=YANG C N, LU Y X, ZHANG L, journalName=Small Structure, refType=null, unstructuredReference=YANG C N, LU Y X, ZHANG L, et al. Defect engineering on CeO2-based catalysts for heterogeneous catalytic applications[J]. Small Structure, 2021, 2: 2100058-2100083., articleTitle=Defect engineering on CeO2-based catalysts for heterogeneous catalytic applications, refAbstract=null), Reference(id=1215700962665222521, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=51, issue=2, pageStart=125, pageEnd=131, url=null, language=null, rfNumber=[25], rfOrder=36, authorNames=唐仲恺, 段玖祥, 魏晗, journalName=热力发电, refType=null, unstructuredReference=唐仲恺, 段玖祥, 魏晗, 等. CeO2-WO3/TiO2同时催化脱除氮氧化物与氯苯研究[J]. 热力发电, 2022, 51(2): 125-131., articleTitle=CeO2-WO3/TiO2同时催化脱除氮氧化物与氯苯研究, refAbstract=null), Reference(id=1215700962732331388, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=51, issue=2, pageStart=125, pageEnd=131, url=null, language=null, rfNumber=[25], rfOrder=37, authorNames=TANG Zhongkai, DUAN Jiuxiang, WEI Han, journalName=Thermal Power Generation, refType=null, unstructuredReference=TANG Zhongkai, DUAN Jiuxiang, WEI Han, et al. Synergistic catalytic removal of nitrogen oxides and chlorobenzene by CeO2-WO3/TiO2[J]. Thermal Power Generation, 2022, 51(2): 125-131., articleTitle=Synergistic catalytic removal of nitrogen oxides and chlorobenzene by CeO2-WO3/TiO2, refAbstract=null), Reference(id=1215700962786857345, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=null, issue=null, pageStart=6, pageEnd=null, url=null, language=null, rfNumber=[26], rfOrder=38, authorNames=宋佳霖, journalName=null, refType=null, unstructuredReference=宋佳霖. 基于Cu/Al2O3催化剂的甲烷氧化还原特性研究[D]. 济南: 山东大学, 2023: 6., articleTitle=基于Cu/Al2O3催化剂的甲烷氧化还原特性研究, refAbstract=null), Reference(id=1215700962853966214, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=null, issue=null, pageStart=6, pageEnd=null, url=null, language=null, rfNumber=[26], rfOrder=39, authorNames=SONG Jialin, journalName=null, refType=null, unstructuredReference=SONG Jialin. Study on methane redox characterisitics based on Cu/Al2O3 catalyst[D]. Jinan: Shandong University, 2023: 6., articleTitle=Study on methane redox characterisitics based on Cu/Al2O3 catalyst, refAbstract=null), Reference(id=1215700962925269386, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2023, volume=346, issue=null, pageStart=128337, pageEnd=12347, url=null, language=null, rfNumber=[27], rfOrder=40, authorNames=WANG Y, WANG P, LU X F, journalName=Fuel, refType=null, unstructuredReference=WANG Y, WANG P, LU X F, et al. Construction of mesoporous Ru@ZSM-5 catalyst for dichloromethane degradation: synergy between acidic sites and redox centers[J]. Fuel, 2023, 346: 128337-12347., articleTitle=Construction of mesoporous Ru@ZSM-5 catalyst for dichloromethane degradation: synergy between acidic sites and redox centers, refAbstract=null), Reference(id=1215700964175171985, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2024, volume=15, issue=null, pageStart=2718, pageEnd=null, url=null, language=null, rfNumber=[28], rfOrder=41, authorNames=XIAO P P, WANG Y, WANG L Z, journalName=Nature Communications, refType=null, unstructuredReference=XIAO P P, WANG Y, WANG L Z, et al. Understanding the effect of spatially separated Cu and acid sites in zeolite catalysts on oxidation of methane[J]. Nature Communications, 2024, 15: 2718., articleTitle=Understanding the effect of spatially separated Cu and acid sites in zeolite catalysts on oxidation of methane, refAbstract=null), Reference(id=1215700964296806806, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2009, volume=21, issue=10, pageStart=2205, pageEnd=2211, url=null, language=null, rfNumber=[29], rfOrder=42, authorNames=杨旸, 郑雯, 程党国, journalName=化学进展, refType=null, unstructuredReference=杨旸, 郑雯, 程党国, 等. 原位FT-IR技术在甲烷氧化反应研究中的应用[J]. 化学进展, 2009, 21(10): 2205-2211., articleTitle=原位FT-IR技术在甲烷氧化反应研究中的应用, refAbstract=null), Reference(id=1215700964418441626, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2009, volume=21, issue=10, pageStart=2205, pageEnd=2211, url=null, language=null, rfNumber=[29], rfOrder=43, authorNames=YANG Yang, ZHENG Wen, CHENG Dangguo, journalName=Progress in Chemistry, refType=null, unstructuredReference=YANG Yang, ZHENG Wen, CHENG Dangguo, et al. The application of in situ FT-IR in the research of methane oxidation[J]. Progress in Chemistry, 2009, 21(10): 2205-2211., articleTitle=The application of in situ FT-IR in the research of methane oxidation, refAbstract=null), Reference(id=1215700964510716320, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2022, volume=14, issue=null, pageStart=31862, pageEnd=31878, url=null, language=null, rfNumber=[30], rfOrder=44, authorNames=LORBER K, ZAVASNIK J, ARCON I, journalName=ACS Applied Materials & Interfaces, refType=null, unstructuredReference=LORBER K, ZAVASNIK J, ARCON I, et al. CO2 activation over nanoshaped CeO2 decorated with nickel for low-temperature methane dry reforming[J]. ACS Applied Materials & Interfaces, 2022, 14: 31862-31878., articleTitle=CO2 activation over nanoshaped CeO2 decorated with nickel for low-temperature methane dry reforming, refAbstract=null), Reference(id=1215700964582019493, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2024, volume=null, issue=null, pageStart=1, pageEnd=null, url=null, language=null, rfNumber=[31], rfOrder=45, authorNames=高倩文, 王晓波, 邓存宝, journalName=精细化工, refType=null, unstructuredReference=高倩文, 王晓波, 邓存宝, 等. Pd-Pt/HZSM-5催化剂的制备及催化低浓度甲烷燃烧性能[J/OL]. 精细化工, 2024: 1. https://doi.org/10.13550/j.jxhg.20230459., articleTitle=Pd-Pt/HZSM-5催化剂的制备及催化低浓度甲烷燃烧性能, refAbstract=null), Reference(id=1215700964640739754, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2024, volume=null, issue=null, pageStart=1, pageEnd=null, url=null, language=null, rfNumber=[31], rfOrder=46, authorNames=GAO Qianwen, WANG Xiaobo, DENG Cunbao, journalName=Fine Chemicals, refType=null, unstructuredReference=GAO Qianwen, WANG Xiaobo, DENG Cunbao, et al. Preparation of Pd-Pt/HZSM-5 catalyst and its catalytic performance for low-concentration methane combustion [J/OL]. Fine Chemicals, 2024: 1. https://doi.org/10.13550/j.jxhg.20230459., articleTitle=Preparation of Pd-Pt/HZSM-5 catalyst and its catalytic performance for low-concentration methane combustion, refAbstract=null), Reference(id=1215700964724625837, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, doi=null, pmid=null, pmcid=null, year=2024, volume=670, issue=null, pageStart=119528, pageEnd=119536, url=null, language=null, rfNumber=[32], rfOrder=47, authorNames=YOO S, JANG G, KIM D, journalName=Applied Catalysis A: General, refType=null, unstructuredReference=YOO S, JANG G, KIM D. Effects of dealumination on the methane-combustion activity of Pd/SSZ-13 catalysts[J]. Applied Catalysis A: General, 2024, 670: 119528-119536., articleTitle=Effects of dealumination on the methane-combustion activity of Pd/SSZ-13 catalysts, refAbstract=null)], funds=[Fund(id=1215700957602697367, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, awardId=2022YFB4101500, language=EN, fundingSource=National Key Research and Development Plan(2022YFB4101500), fundOrder=null, country=null), Fund(id=1215700957694972061, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, awardId=2022YFB4101500, language=CN, fundingSource=国家重点研发计划(2022YFB4101500), fundOrder=null, country=null), Fund(id=1215700957896298664, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, awardId=22276145; 21922606, language=EN, fundingSource=National Natural Science Foundation of China(22276145; 21922606), fundOrder=null, country=null), Fund(id=1215700957975990443, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, awardId=22276145; 21922606, language=CN, fundingSource=国家自然科学基金项目(22276145; 21922606), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1215700951529345820, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=1., ext=[AuthorCompanyExt(id=1215700951533540127, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China), AuthorCompanyExt(id=1215700951541928734, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951529345820, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049)]), AuthorCompany(id=1215700951625814822, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, xref=2., ext=[AuthorCompanyExt(id=1215700951634203431, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951625814822, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.National Engineering Laboratory for VOCs Pollution Control Material & Technology, Beijing 101408, China), AuthorCompanyExt(id=1215700951638397736, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, companyId=1215700951625814822, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.挥发性有机物污染控制材料与技术国家工程实验室,北京 101408)])], figs=[ArticleFig(id=1215700955622985761, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Fig.1, caption=XRD patterns of the catalysts, figureFileSmall=i5jB4DoK1wwZO5nUXAVqeg==, figureFileBig=57ioEpy1pYmfwql+fHUxyg==, tableContent=null), ArticleFig(id=1215700955736231979, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=图1, caption=催化剂XRD分析结果, figureFileSmall=i5jB4DoK1wwZO5nUXAVqeg==, figureFileBig=57ioEpy1pYmfwql+fHUxyg==, tableContent=null), ArticleFig(id=1215700955945947190, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Fig.2, caption=Raman spectra of the catalysts, figureFileSmall=k3CCZEqIKt4Lo32ZSjA5WQ==, figureFileBig=DtcL6/nZV/VoD8z1s3IPUg==, tableContent=null), ArticleFig(id=1215700956071776316, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=图2, caption=催化剂拉曼光谱图, figureFileSmall=k3CCZEqIKt4Lo32ZSjA5WQ==, figureFileBig=DtcL6/nZV/VoD8z1s3IPUg==, tableContent=null), ArticleFig(id=1215700956193411141, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Fig.3, caption=H2-TPR profiles of the catalysts, figureFileSmall=eEKH0WpfDPR7FGFeRPHuFw==, figureFileBig=BiLP782zPvUNBmJZiVh6MA==, tableContent=null), ArticleFig(id=1215700956289880139, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=图3, caption=催化剂H2-TPR结果, figureFileSmall=eEKH0WpfDPR7FGFeRPHuFw==, figureFileBig=BiLP782zPvUNBmJZiVh6MA==, tableContent=null), ArticleFig(id=1215700956415709268, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Fig.4, caption=NH3-TPD curves of the catalysts, figureFileSmall=CgSEKj6TrLUOrePNKSR8cQ==, figureFileBig=ZmjwCUXEMpZ7dD66i20QZA==, tableContent=null), ArticleFig(id=1215700956491206745, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=图4, caption=催化剂NH3-TPD结果, figureFileSmall=CgSEKj6TrLUOrePNKSR8cQ==, figureFileBig=ZmjwCUXEMpZ7dD66i20QZA==, tableContent=null), ArticleFig(id=1215700956587675743, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Fig.5, caption=XPS spectra of the catalysts, figureFileSmall=r0PCCQGZdHC0Q3JIDO+Hig==, figureFileBig=H4xTPCotTMsyBC13xjoPvQ==, tableContent=null), ArticleFig(id=1215700956696727654, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=图5, caption=催化剂XPS光谱, figureFileSmall=r0PCCQGZdHC0Q3JIDO+Hig==, figureFileBig=H4xTPCotTMsyBC13xjoPvQ==, tableContent=null), ArticleFig(id=1215700956793196651, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Fig.6, caption=Reaction performance of the catalysts, figureFileSmall=4lpheIxtf6u1n2vMU5S/Hg==, figureFileBig=OPLEQwS8Zlq8AMOFGprdYQ==, tableContent=null), ArticleFig(id=1215700956889665651, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=图6, caption=催化剂CH4氧化性能, figureFileSmall=4lpheIxtf6u1n2vMU5S/Hg==, figureFileBig=OPLEQwS8Zlq8AMOFGprdYQ==, tableContent=null), ArticleFig(id=1215700956994523255, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Fig.7, caption=The in situ diffuse reflection infrared spectrum, figureFileSmall=XP0I4ga4SGnQ4xKaBaXXtw==, figureFileBig=bWfwpx4SONQ62GkhjFhgNQ==, tableContent=null), ArticleFig(id=1215700957078409341, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=图7, caption=原位漫反射红外光谱, figureFileSmall=XP0I4ga4SGnQ4xKaBaXXtw==, figureFileBig=bWfwpx4SONQ62GkhjFhgNQ==, tableContent=null), ArticleFig(id=1215700957166489729, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Tab.1, caption=

The amounts of oxygen vacancies and acid sites over catalysts

, figureFileSmall=null, figureFileBig=null, tableContent=
催化剂IOv/IF2gNH3相对脱附量/%
Pd0.0521.1
PdCr0.07100.0
PdMo0.0888.2
PdW0.0834.9
), ArticleFig(id=1215700957267153031, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=表1, caption=

催化剂氧空位及酸性位点数量

, figureFileSmall=null, figureFileBig=null, tableContent=
催化剂IOv/IF2gNH3相对脱附量/%
Pd0.0521.1
PdCr0.07100.0
PdMo0.0888.2
PdW0.0834.9
), ArticleFig(id=1215700957367816331, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=EN, label=Tab.2, caption=

The relative amounts of surface oxygen species over the catalysts

, figureFileSmall=null, figureFileBig=null, tableContent=
催化剂晶格氧吸附氧羟基
Pd86.36.37.4
PdCr89.67.33.1
PdMo26.249.526.3
PdW89.77.33.0
), ArticleFig(id=1215700957481062545, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1215700946496180821, language=CN, label=表2, caption=

催化剂表面氧物种相对数量

, figureFileSmall=null, figureFileBig=null, tableContent=
催化剂晶格氧吸附氧羟基
Pd86.36.37.4
PdCr89.67.33.1
PdMo26.249.526.3
PdW89.77.33.0
)], attaches=null, journal=Journal(id=1210938006006558725, delFlag=0, nameCn=热力发电, nameEn=Thermal Power Generation, nameHistory1=null, nameHistory2=null, issn=1002-3364, eissn=null, cn=61-1111/TM, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=YWgAUXbKXZzTw3c+kJbAIA==, journalPrice=null, startedYear=null, abbrevIsoEn=Thermal Power Generation, journalRemark=null, publicationField=null, createdTime=1766639718774, updatedTime=1766640759031, createdBy=18614031015, updatedBy=13701087609, firstLetterCn=T, firstLetterEn=T, subjectCode=Engineering, subjectName=null, subjectCodeEn=Engineering, subjectNameEn=null, picCn=YWgAUXbKXZzTw3c+kJbAIA==, picEn=jfJjUlYAGfUZwuOMQZ6AHQ==, jcr=null, cjcr=null, exts=[JournalExt(id=1210942369256575009, language=CN, name=热力发电, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=, createdTime=1766640759052, updatedTime=1766640759052, createdBy=13701087609, updatedBy=13701087609, submissionGuidelinesUrl=, submissionAuthorUrl=https://rlfd.chinajournal.net.cn/index.aspx?t=1, submissionEditorUrl=https://rlfd.chinajournal.net.cn/index.aspx?t=3, submissionReviewUrl=https://rlfd.chinajournal.net.cn/index.aspx?t=2, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""}), JournalExt(id=1210942369315295266, language=EN, name=Thermal Power Generation, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=, createdTime=1766640759066, updatedTime=1766640759066, createdBy=13701087609, updatedBy=13701087609, submissionGuidelinesUrl=, submissionAuthorUrl=https://rlfd.chinajournal.net.cn/index.aspx?t=1, submissionEditorUrl=https://rlfd.chinajournal.net.cn/index.aspx?t=3, submissionReviewUrl=https://rlfd.chinajournal.net.cn/index.aspx?t=2, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""})], databaseList=null, tenantJournalId=1210938733613449225, websiteList=[Website(id=1210941118787744741, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1210938733613449225, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/rlfd/CN, language=CN, createTime=1766640460918, createBy=18614031015, updateTime=1766640511525, updateBy=18614031015, name=热力发电-中文, tplId=1146099689490845704, title=热力发电, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1210944690380214659, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=articleTextType, value=kx, createTime=1766641312451, updateTime=1766641312451, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690359243136, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=banner, value=null, createTime=1766641312446, updateTime=1766641312446, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690401186182, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=grayFlag, value=0, createTime=1766641312456, updateTime=1766641312456, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690346660223, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=logo, value=https://castjournals.cast.org.cn/joweb/rlfd/CN/file/pic?fileId=ToFA0Lu4b/CNocENDvNjHA==, createTime=1766641312443, updateTime=1766641312443, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690409574792, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=minRunFlag, value=0, createTime=1766641312458, updateTime=1766641312458, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690371826050, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/rlfd/CN/file/pic, createTime=1766641312449, updateTime=1766641312449, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690405380487, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=silenceFlag, value=0, createTime=1766641312457, updateTime=1766641312457, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690367631745, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_cn_619/, createTime=1766641312448, updateTime=1766641312448, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690388603268, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=themeColor, value=null, createTime=1766641312453, updateTime=1766641312453, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944690392797573, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118787744741, code=themeStyle, value=null, createTime=1766641312454, updateTime=1766641312454, creator=18614031015, updator=18614031015)]), Website(id=1210941118926156777, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1210938733613449225, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/rlfd/EN, language=EN, createTime=1766640460950, createBy=18614031015, updateTime=1766640598724, updateBy=18614031015, name=热力发电-英文, tplId=1146101810881728533, title=Thermal Power Generation, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1210944709317489283, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=articleTextType, value=kx, createTime=1766641316966, updateTime=1766641316966, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709296517760, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=banner, value=null, createTime=1766641316961, updateTime=1766641316961, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709334266502, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=grayFlag, value=0, createTime=1766641316970, updateTime=1766641316970, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709288129151, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=logo, value=https://castjournals.cast.org.cn/joweb/rlfd/CN/file/pic?fileId=ToFA0Lu4b/CNocENDvNjHA==, createTime=1766641316959, updateTime=1766641316959, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709346849416, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=minRunFlag, value=0, createTime=1766641316973, updateTime=1766641316973, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709309100674, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/rlfd/EN/file/pic, createTime=1766641316964, updateTime=1766641316964, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709338460807, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=silenceFlag, value=0, createTime=1766641316971, updateTime=1766641316971, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709300712065, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_en_623/, createTime=1766641316962, updateTime=1766641316962, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709321683588, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=themeColor, value=null, createTime=1766641316967, updateTime=1766641316967, creator=18614031015, updator=18614031015), WebsiteProps(id=1210944709330072197, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1210941118926156777, code=themeStyle, value=null, createTime=1766641316969, updateTime=1766641316969, creator=18614031015, updator=18614031015)])], journalTitle=热力发电, weixinUrl=null, journalUrl=null, iacademicId=null, status=1, seqNo=null, journalTitleEn=Thermal Power Generation, journalPhotoCn=YWgAUXbKXZzTw3c+kJbAIA==, journalPhotoEn=jfJjUlYAGfUZwuOMQZ6AHQ==, journalFirstLetter=T, journalRecommend=null, journalNew=null, journalCollection=null, jcrJf=null, cjcrJf=null, jcrJfStr=null, cjcrJfStr=null, submissionFirstDecision=null, sciSubjectClassification=null, casSubjectClassification=null, citeScore=null, totalCitationFrequency=null, icpCode=null, psCode=null, advertisingLicenseCode=null, copyrightInformation=null, country=null, option=, provinceCode=null, provinceName=null, collectFlag=false), detailUrlCn=https://castjournals.cast.org.cn/joweb/rlfd/CN/10.19666/j.rlfd.202402036, detailUrlEn=https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202402036, pdfUrlCn=https://castjournals.cast.org.cn/joweb/rlfd/CN/PDF/10.19666/j.rlfd.202402036, pdfUrlEn=https://castjournals.cast.org.cn/joweb/rlfd/EN/PDF/10.19666/j.rlfd.202402036, aliStartDate=null, aliEndDate=null, collectionFlag=false, citedCount=null, citedUrl=null, reference=null)
收藏切换
过渡金属调节酸性位点促进钯催化剂C-H键裂解能力提高甲烷完全燃烧性能
收藏切换
PDF下载
夏良辉 1 , 王晶晶 1 , 建艳飞 1 , 刘昱洁 1 , 何炽 1, 2
热力发电 | 热能科学研究 2024,53(7): 135-142
收起
收藏切换
热力发电 | 热能科学研究 2024, 53(7): 135-142
过渡金属调节酸性位点促进钯催化剂C-H键裂解能力提高甲烷完全燃烧性能
全屏
夏良辉1 , 王晶晶1, 建艳飞1, 刘昱洁1, 何炽1, 2
作者信息
  • 1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049
  • 2.挥发性有机物污染控制材料与技术国家工程实验室,北京 101408
  • 夏良辉(1995),男,博士研究生,主要研究方向为低碳烷烃类VOCs氧化消除技术,

通讯作者:

何炽(1982),男,博士,教授,主要研究方向为大气污染控制技术,
Regulating acid sites by transition metals to promote C-H bond cracking ability of Pd catalysts for methane complete combustion performance improvement
Lianghui XIA1 , Jingjing WANG1, Yanfei JIAN1, Yujie LIU1, Chi HE1, 2
Affiliations
  • 1.State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
  • 2.National Engineering Laboratory for VOCs Pollution Control Material & Technology, Beijing 101408, China
出版时间: 2024-07-25 doi: 10.19666/j.rlfd.202402036
文章导航
收藏切换

甲烷作为主要大气污染物之一,因其具有稳定的四面体分子结构,给其在温和条件下的催化氧化消除带来巨大挑战。旨在通过引入过渡金属(Cr、Mo、W)改性Pd基催化剂的酸性位点,促进C-H键的裂解,以增强甲烷催化氧化性能。通过XRD、Raman、H2-TPR、NH3-TPD等多种表征手段对催化剂的氧空位、酸性及氧化还原性能进行了系统探究。结果表明:过渡金属改性使得Pd催化剂的酸性位点显著增加,且过渡金属改性的PdM催化剂具有更高的氧空位数量;Mo改性的PdMo催化剂表现出更优异的氧化还原性能,而Cr和W改性的PdCr及PdW催化剂的氧化还原性能稍有下降;甲烷氧化反应结果表明,酸性位点适中的PdMo催化剂具有最优异的甲烷氧化性能,其T90温度较Pd催化剂降低约150 ℃,且表现出更好的反应稳定性;然而,酸性位点数量较多或较少的PdCr及PdW催化剂表现出较低的甲烷氧化活性,说明催化剂的酸性位点数量和氧化还原性能共同决定了其甲烷氧化性能。该结论为设计制备用于甲烷完全氧化的低温高效催化剂提供了思路。

甲烷  /  钯催化剂  /  过渡金属  /  酸性位点  /  氧化还原性能

Methane is one of the main components of atmospheric pollutants, which is challenging to be eliminated by catalytic oxidation under mild conditions because of its tetrahedral structure stability. In this work, the acidic sites of Pd-based catalysts are modified by introducing transition metals (Cr, Mo, W) to promote the cleavage of C-H bonds and therefore to enhance the catalytic oxidation performance of methane. The oxygen vacancies, acidity and redox property of prepared catalysts are systematically characterized by XRD, Raman, H2-TPR and NH3-TPD techniques. The results show that, the transition metal modification increases the acidic site of Pd catalysts obviously, and the modified PdM catalysts have a higher amount of oxygen vacancies. However, only Mo modified PdMo catalyst exhibits better redox performance, while Cr and W modified PdCr and PdW catalysts show slightly lower redox performance. The results of the methane oxidation reaction confirm that the PdMo catalyst with moderate acidic sites displays excellent performance in the methane oxidation reaction, and its T90 decreases by about 150 ℃, while the PdCr and PdW catalysts with more and less acidic sites show lower methane oxidation activity. The results indicate that the number of acid sites and the redox properties of the catalyst jointly determine the methane oxidation performance. This conclusion provides critical insights for design and preparation of catalysts for complete oxidation of methane at low temperatures.

methane  /  Pd catalysts  /  transition metal  /  acidic site  /  redox property
夏良辉, 王晶晶, 建艳飞, 刘昱洁, 何炽. 过渡金属调节酸性位点促进钯催化剂C-H键裂解能力提高甲烷完全燃烧性能. 热力发电, 2024 , 53 (7) : 135 -142 . DOI: 10.19666/j.rlfd.202402036
Lianghui XIA, Jingjing WANG, Yanfei JIAN, Yujie LIU, Chi HE. Regulating acid sites by transition metals to promote C-H bond cracking ability of Pd catalysts for methane complete combustion performance improvement[J]. Thermal Power Generation, 2024 , 53 (7) : 135 -142 . DOI: 10.19666/j.rlfd.202402036
随着工业和城市化进程迅猛发展,环境问题和可持续发展已经成为全球焦点。大气污染物大量排放对人体健康和生态平衡造成巨大威胁,影响人类的生存和可持续发展[1]。低碳烷烃是一类主要的大气污染物,通常来源于交通运输、工业生产和能源利用等活动,对空气质量和生态环境构成潜在威胁[2]。其中,甲烷作为典型的低碳烷烃,由于具有高度稳定的分子结构,导致其在大气中的停留时间相对较长,浓度逐渐积累,成为大气中的重要污染源之一[3]。尽管甲烷的相对浓度较低,然而其高效吸收红外辐射的特性使其成为重要的温室气体之一。此外,甲烷的光化学反应还会导致地表臭氧的生成,从而进一步损害大气质量[4]
近年来,研究主要集中在如何减少甲烷排放和降低其对大气环境的影响。其中,催化燃烧技术可将甲烷转化为较为无害的水和二氧化碳,从而减少其空气质量的负面影响[5]。然而,由于甲烷分子的高度稳定性,实现其C-H键的裂解需要克服较高的能垒。贵金属催化剂尤其是Pd基催化剂,在甲烷完全燃烧反应中表现出较高的活性,但因其价格较高以及抗中毒性能较弱,制约了贵金属催化剂的大规模工业化应用[6]
催化剂的物理化学性质(包括结构、氧空位、酸碱性等)可以影响其表面的反应活性位点,进而调控反应机理和产物分布[7]。C-H键裂解是甲烷燃烧反应的决定性步骤之一,而C-H键的活化涉及到质子化过程,其中具有酸性位点的催化剂可以给甲烷中的C-H键提供质子,从而促进其活化过程[8-9]。贵金属催化剂本身不具备酸性位点,而过渡金属如铬(Cr)、钼(Mo)、锰(Mn)、钨(W)等氧化物都呈现出较多的酸性位点[10]。因此,通过添加廉价的具有酸性位点的过渡金属,来调节催化剂的活性位点结构和化学性质,是促进甲烷C-H键活化、提高催化剂活性和稳定性的有效策略。例如,Hou等人[11]通过在Pd催化剂中添加W构建Pd-O-W1界面,提高了催化剂在甲烷燃烧反应中的抗水性能。
然而,在甲烷氧化反应中尚有诸多科学问题亟待阐明和解决。本文通过深入探讨过渡金属在酸性环境中对Pd催化剂的调节作用,以及其对提高甲烷完全燃烧性能的影响机制,提出以具有良好的氧存储和释放能力的CeO2为载体,以Pd为主要活性中心,选择同一族的Cr、Mo、W为助催中心,构建酸性位点提高低碳烷烃氧化性能,以期为解决甲烷污染提供新的思路和方法。
以氨水为沉淀剂,六水合硝酸铈为铈源,采用传统沉淀法制备CeO2载体[12-14]。首先,在室温下将六水合硝酸铈溶于水,搅拌澄清后逐滴加入氨水,调节pH值至9.5,随后搅拌2 h,将得到的沉淀物用去离子水洗涤3次;然后,在烘箱中80 ℃下干燥10 h,降至室温后将得到的粉末充分研磨后,转移到马弗炉中,以5 ℃/min速率升温至550 ℃,并在500 ℃焙烧4 h,得到CeO2载体。
以乙酸钯、九水合硝酸铬、五水合硝酸钼以及碳酸钨为金属源,通过等体积浸渍法,制备了PdMOx/CeO2催化剂。首先,在室温下将一定比例的乙酸钯和过渡金属(m(Pd) :m(M)=1:5)溶于少量去离子水,搅拌澄清后;然后,加入上述制备的CeO2载体,搅拌12 h;最后,将得到的混合物在80 ℃下水浴蒸干。将得到的前驱体在烘箱中80 ℃下干燥10 h,待降至室温后将得到的粉末充分研磨后,转移至马弗炉中,以2 ℃/min的速率从室温升至500 ℃,并在500 ℃下焙烧4 h,待焙烧结束后得到催化剂,分别命名为Pd、PdCr、PdMo及PdW。
采用X射线衍射法(XRD)、拉曼光谱仪(Raman)、氢气程序升温还原(H2-TPR)、氨气程序升温脱附(NH3-TPD)、X射线光电子能谱(XPS)等手段表征了样品的物理化学性质。XRD表征在日本岛津公司的XRD-6100上进行,扫描角度为10°~80°,扫描速度为4°/min。Raman表征在英国Renishaw拉曼光谱仪上进行,激光波长为532 nm。XPS表征在美国赛默飞X射线光电子能谱仪上进行。
H2-TPR实验在北京比奥德公司的PCA-1200化学吸附仪上进行。测试步骤如下:首先,将50 mg催化剂置于U型石英管中,随后通入氩气,升温至400 ℃并保持1 h,除去催化剂表面微弱吸附的杂质气体;待预处理结束后降至室温,将氩气切换为体积分数为10%的H2/Ar混合气,待热导检测器(TCD)的信号稳定后,从室温升至800 ℃,TCD同时记录信号变化,得到H2-TPR曲线。NH3-TPD也是在相同的化学吸附仪上进行。首先,将催化剂置于在400 ℃下预处理(步骤与H2-TPR中预处理一致)1 h。预处理结束温度降至50 ℃后,将氩气切换为体积分数为5%的NH3/N2,并保持45 h,使催化剂吸附饱和,随后将气体切换为N2,吹扫30 min去除物理吸附的NH3,随后程序升温至800 ℃,并用TCD记录脱附曲线。在连续流动的石英微型反应器中评价催化剂样品的催化活性。具体步骤如下:将300 mg样品(70~300 μm)置于石英管中,通入流速为100 mL/min的混合气(0.1%甲烷+20%氧气+氮气),空速为20 000 mL/(g·h);稳定1 h后,以10 ℃/min速率升温至200 ℃,稳定30 min后用色谱分析尾气。采样温度200~600 ℃,每隔25 ℃保温30 min后取1次样。
反应尾气采用装配有氢火焰离子检测器(FID)和热导检测器(TCD)的双通道气相色谱仪分析,其中FID用于检测微量的甲烷气体,TCD用于检测CO2气体。气相色谱仪进样器的温度为150 ℃,柱箱温度为40 ℃,检测器温度为250 ℃,色谱柱为非极性柱。甲烷转化率X计算公式为:
X=Cin CoutCin×100%
式中:CinCout分别为进入反应器前的甲烷和尾气中的甲烷浓度。
CO2收率YCO2计算公式为:
YCO2=CCO2,outCin×100%
式中:CCO2,out为尾气中的二氧化碳浓度。
通过XRD分析得到样品晶相结构,结果如图1所示。XRD结果显示:在2θ角度分别为28.4°、47.3°和56.2°处,所有样品都呈现出3个强烈的衍射峰,这些峰分别对应CeO2立方晶型中的(111)、(220)及(311)晶面的衍射峰(JCPDS 43-1002)[12-13];这些衍射峰的强度非常高,这进一步证明了样品中存在CeO2,其他弱衍射峰,同样可以归属于CeO2[14]。在所有催化剂样品中,并未观察到PdO、Pd或任何过渡金属复合氧化物或过渡金属氧化物的衍射峰,这表明该系列催化剂的主要晶相均可明确归属于CeO2
负载的金属氧化物(例如PdO)与CeO2载体良好地分布,但由于这些金属氧化物颗粒的纳米级尺寸,XRD技术无法检测。与现有的催化剂相比,催化剂负载物的颗粒尺寸较小,显著改善了催化性能,包括增加活性、选择性和稳定性,减少成本,并有助于更有效地利用负载物[15]
为了解催化剂的氧空位数,借助Raman光谱仪得到催化剂的拉曼光谱图,结果如图2所示。由图2可见,所有催化剂都展现出2个显著的Raman伸缩振动峰,分别出现在462 cm–1和595 cm–1处。
这2个峰分别与CeO2的立方萤石结构中的F2g振动模式以及氧缺陷诱导模式(Ov)相关联[16-17]。氧缺陷和F2g振动模式的峰强度比(IOv/IF2g)通常用来表征催化剂中的氧空位数,较高的IOv/IF2g比值通常表示催化剂中的氧空位浓度更高[18]。催化剂氧空位及酸性位点数量见表1。由表1可见,催化剂的氧空位浓度存在明显差异,PdW(0.08)、PdMo(0.08)>PdCr(0.07)>Pd(0.05)。这表明添加过渡金属掺杂如W和Mo对催化剂的氧空位浓度产生了显著影响。氧化反应中催化剂的氧空位浓度是一个关键参数[19]。较高的氧空位数量通常意味着催化剂表面存在更多的活性氧位点,这些位点有助于促进氧化反应的进行。因此,PdW和PdMo催化剂具有更多的氧空位,可能表现出更高的催化活性。同时,图2拉曼光谱图也表明,掺杂过渡金属可以改善催化剂的氧空位数量,有助于提高反应效率。
为研究催化剂的氧化还原性,对该系列催化剂进行了H2-TPR测试,结果如图3所示。
图3可见:所有催化剂均表现出1个位于约100 ℃左右的还原峰,该峰归属于Pd2+物种的还原[20];与未掺杂的Pd催化剂相比(还原峰温度为89 ℃),掺杂Mo的PdMo催化剂表现出更低的Pd2+还原峰温度(85 ℃),而掺杂Cr和W的催化剂则显示出较高的还原峰温度。这个结果揭示了不同过渡金属的掺杂会影响Pd催化剂的氧化还原性能。
较低的还原温度通常反映了更出色的氧化还原性能,这与催化反应中的电子传输能力密切相关,其中催化剂的活性位点必须能有效接受和释放电子[21]。在甲烷活化过程中,催化剂需要能够接受来自甲烷分子的氢原子,并在反应过程中将它们转移到其他分子或气体中。这个过程涉及到氧化还原反应,其中催化剂的活性位点在氧化态和还原态之间转换。因此,较好的氧化还原性能可以使催化剂更有效地参与甲烷C-H键活化反应[22]
CeO2载体非常活泼,通常存在Ce3+和Ce4+,由于存在部分不完全氧化Ce3+,其晶体结构中常常存在氧缺陷[23]。此外,其Ce3+和Ce4+很容易发生氧化还原反应,形成丰富的氧流动性,有利于甲烷催化氧化反应。氧化还原反应的本质是电子传输流动,金属离子(如Pd和M)与CeO2之间的电子传输也可以导致活性位点的形成和调控[24]。金属离子的引入会改变CeO2的电子结构,导致电荷转移和局部电子密度的变化,从而影响氧空位和酸性位点的形成。根据H2-TPR结果(图3)可知,Mo的掺杂能够显著提高Pd催化剂的氧化还原性能,使其更适合电子传输和参与氧化还原反应。然而,Cr和W的掺杂对Pd催化剂的氧化还原性能产生了一定的不利影响。综上所述,不同过渡金属掺杂对于催化剂的氧化还原性能影响差异很大,Mo可以作为一种有效提高催化剂氧化还原性能的助催金属。
为探究催化剂的酸性位点数量,进行了氨气吸脱附测试[25],其结果如图4所示。从图4可见,在引入过渡金属后,PdM催化剂(其中M为Cr、Mo、W)的酸性位点数量明显增加。可见过渡金属的引入如Cr、Mo和W对催化剂的酸性位点有显著影响,其氨气脱附量均有所增加。为了更好地比较不同催化剂之间的酸性位点数量,采用脱附峰面积定量分析,将最大峰面积定为100,结果显示PdCr催化剂的酸性位点数量(100)最高。这可能是由于Cr的引入带来了更多酸性位点,从而增强催化剂的反应活性,这对于甲烷完全氧化反应具有重要影响[26]。催化剂表面的酸性位点可以促进甲烷和氧气分子吸附,这些位点能够吸引并固定反应底物,使它们更容易接触且参与反应;此外,酸性位点还可以活化甲烷及氧气反应物分子,有助于形成反应中间体,从而提高反应速率[27]。PdMo催化剂也显示出较高的酸性位点数量(88.2),其次是PdW催化剂(34.9),但仍然明显多于纯Pd催化剂(21.1)。这表明通过引入过渡金属(如Mo和W),可以有效增加催化剂酸性位点数量。
为了进一步探究催化剂表面的吸附氧性质,对催化剂进行了XPS表征,结果如图5所示。由图5可见,结合能为529.5 eV左右的峰为晶格氧,532 eV左右的峰可归属于表面吸附氧,而533.5 eV左右的峰可归因于表面羟基。
根据各氧物种分峰拟合得到的峰面积,计算了各氧物种的相对数量,结果见表2。由表2可见:PdCr、PdMo、PdW催化剂均表现出比纯Pd催化剂更高的表面吸附氧;PdMo催化剂表面吸附氧数量最高,为49.5%,而PdCr和PdW催化剂的表面吸附氧含量仅比纯Pd高约1%。表面吸附氧数量对于催化氧化反应至关重要,吸附氧能力越强的催化剂,其催化氧化低碳烷烃能力就越强。根据2.2节的Raman结果(图2),催化剂上来自CeO2载体的氧空位数量差别并不明显,说明PdMo催化剂极高的表面吸附氧大部分为吸附在负载PdMo金属氧化物上的吸附氧,可见Mo可以提供大量的活性氧吸附位点。
为分析催化剂酸性位点对甲烷(CH4)活化的影响,对该系列催化剂进行CH4氧化活性测试,其结果如图6所示。从图6可见,当引入过渡金属后,仅有PdMo催化剂表现出比纯Pd催化剂更好的活性。在相对较低的温度下(约300 ℃),PdMo催化剂就能实现90% CH4的转化(T90),而纯Pd催化剂需要高达450 ℃以上才能达到这一转化率。
与PdMo相比,PdCr和PdW 2个催化剂反而活性较差,其T90分别为470、490 ℃,远高于PdMo催化剂。这表明在该反应中,PdCr和PdW的酸性位点数量不利于CH4氧化反应的进行。CH4氧化反应的结果表明,单凭酸性微点数量并不能直接提高催化剂的CH4裂解能力。PdMo催化剂具有适量的酸性位点,同时表现出较好的氧化还原性能及较高的表面氧空位浓度,因此其CH4氧化活性明显增强。而PdCr和PdW虽然具有比纯Pd催化剂更多的酸性位点及氧空位浓度,但是二者的氧化还原性能都明显降低,因此对CH4氧化反应产生了不利影响。在CH4氧化反应中,不同的酸性位点强度可能导致不同的反应路径,从而影响产物的生成[28]。例如,较强的酸性位点可能促进CH4的部分氧化产生甲醛等中间体,而适量的酸性位点可能更有利于完全氧化产生CO2
为研究催化剂的稳定性,对表现最佳的PdMo催化剂以及纯Pd催化剂在T90下进行CH4转化率测试,测试结果如图6c)所示。由图6c)可见,PdMo催化剂表现出卓越的稳定性。在通入了10% H2O的情况下,其转化率下降到了88%左右,但在撤去水之后转化率又重新恢复到了90%以上,并且在经过长达40 h的稳定性测试后,其CH4转化率仍然能够维持在90%水平。这表明PdMo催化剂在长时间反应中保持了高度的催化活性及抗水性,稳定性极佳。而纯Pd催化剂在初始阶段达到了90%的CH4转化率,但随着测试时间的增加,其转化率逐渐下降,在20 h后Pd催化剂的CH4转化率下降至80%。可见,PdMo催化剂相对于纯Pd催化剂在长时间反应稳定性较强。通过添加合适的过渡金属(如Mo),可以使其在催化反应中更持久地维持高活性,这对于工业和环境应用中的催化过程至关重要。
对PdMo催化剂在其T90下进行原位漫反射红外光谱测试,结果如图7所示。由图7可见:在3 776 cm–1及2 958 cm–1处检测到的峰可分别归属于表面羟基(OH)及烷基(CH3)的振动[29];1 727 cm–1处的峰为羰基(C=O)振动,而1 602 cm–1及1 501 cm–1处的峰可归属于表面羧基(COO)的振动;此外,在1 295 cm–1及1 249 cm–1处观察到碳酸盐物种(CO32–)的振动,1 183 cm–1及1 103 cm–1为甲氧基物种(CH-O)的振动峰[30]。根据原位红外结果,推断甲烷的转化路径为CH4→CH3O→ CHO→COO→CO2。与现有的Pd-Pt/HZSM-5及Pd/SSZ-13催化剂相比,PdMo催化剂具有更好的性能,能在更低的温度下转化CH4[31-32]
本文采用带有酸性位点的过渡金属(Cr、Mo、W)改性Pd基催化剂,旨在增强Pd基催化剂的酸性强度,以促进催化剂的C-H键裂解能力,最终提升CH4的催化氧化性能。
1)过渡金属(Cr、Mo、W)改性的Pd催化剂显著提高了酸性位点数量。与未改性的Pd催化剂相比,PdM催化剂的酸性位点明显增加,且催化剂酸性位点数量依次为PdCr>PdMo>PdW>Pd。
2)过渡金属改性的PdM催化剂相较于未改性的Pd催化剂,拥有更高的氧空位数量。然而,仅PdMo催化剂表现出更好的氧化还原性能,而PdCr及PdW催化剂的氧化还原性能则略有下降。
3)具备中等数量酸性位点的PdMo催化剂具有优异的CH4氧化性能,而具有更多或更少酸性位点数量的PdCr及PdW催化剂显示出较Pd催化剂更低的氧化活性。可见,催化剂酸性位点数和氧化还原能力共同决定了其CH4氧化性能。PdMo催化剂的T90较Pd催化剂降低了约150 ℃且反应稳定性更强。
  • 国家重点研发计划(2022YFB4101500)
  • 国家自然科学基金项目(22276145; 21922606)
参考文献 引证文献
排序方式:
[1]
曲立涛, 于洪海, 李超, 等. 超低排放煤电机组主要大气污染物排放分析[J]. 热力发电, 2022, 51(1): 196-202.
QU Litao, YU Honghai, LI Chao, et al. Emission analysis of main air pollutants from ultra-low emission coal-fired power units[J]. Thermal Power Generation, 2022, 51(1): 196-202.
[2]
杨小平, 刘亚宁, 唐兰, 等. 低温等离子体氧化甲烷的实验研究[J]. 环境工程, 2005, 23(3): 37-39.
YANG Xiaoping, LIU Yaning, TANG Lan, et al. Experimental study on methane oxidation by low temperature plasma[J]. Environmental Engineering, 2005, 23(3): 37-39.
[3]
陈晓迈, 石雪风, 刘美茵, 等. 封装型Pd@S-1催化剂中Pd状态对低浓度甲烷催化氧化性能的影响[J]. 环境科学学报, 2023, 43(3): 394-404.
CHEN Xiaomai, SHI Xuefeng, LIU Meiyin, et al. The effect of Pd state of encapsulated Pd@S-1 catalyst on the catalytic oxidation performance of low concentration methane[J]. Acta Scientiae Circumstantiae, 2023, 43(3): 394-404.
[4]
张亚竹, 黄朱犇, 黄军, 等. 非预热条件下甲烷与丙烷无焰燃烧的实现及对比研究[J]. 热力发电, 2022, 51(6): 89-95.
ZHANG Yazhu, HUANG Zhuben, HUANG Jun, et al. Realization and comparison of flameless combustion of CH4 and C3H8 under un-preheating condition[J]. Thermal Power Generation, 2022, 51(6): 89-95.
[5]
陈冬林, 叶托, 李恒. 低NOx燃烧技术研究现状及进展[J]. 热力发电, 2017, 46(3): 1-6.
CHEN Donglin, YE Tuo, LI Heng. Review on low NOx combustion techniques[J]. Thermal Power Generation, 2017, 46(3): 1-6.
[6]
杨沁, 徐晗, 赵亚若, 等. 贵金属(Pt、Pd和Ru)基催化剂在含氯挥发性有机物催化降解中的研究进展[J]. 能源环境保护, 2023, 37(3): 75-87.
YANG Qin, XU Han, ZHAO Yaruo, et al. Research progress of noble metal (Pt, Pd, and Ru)-based catalysts for catalytic decomposition of chlorine-containing volatile organic compounds[J]. Energy Environmental Protection, 2023, 37(3): 75-87.
[7]
金奇杰, 陶兴军, 潘有春, 等. Y3+和La3+改性对CeO2(ZrO2)/TiO2催化剂脱硝性能的影响[J]. 热力发电, 2018, 47(2): 71-77.
JIN Qijie, TAO Xingjun, PAN Youchun, et al. Effect of Y3+ and La3+ on catalytic performance of CeO2(ZrO2)/TiO2 catalyst during selective catalytic reduction of NOx[J]. Thermal Power Generation, 2018, 47(2): 71-77.
[8]
BURCH R, CRITTLE D, HAYES M. C-H bond activation in hydrocarbon oxidation on heterogeneous catalysts[J]. Catalysis Today, 1999, 47(1): 229-234.
[9]
HE Y L, GUO F C, YANG K, et al. In situ identification of reaction intermediates and mechanistic understandings of methane oxidation over hematite: a combined experimental and theoretical study[J]. Journal of the American Chemical Society, 2020, 142(40): 17119-17130.
[10]
楚培齐, 王赛飞, 赵世广, 等. 甲烷催化燃烧反应机理及催化剂研究进展[J]. 燃料化学学报, 2022, 50(2): 180-194.
CHU Peiqi, WANG Saifei, ZHAO Shiguang, et al. Research progress of reaction mechanism and catalysts on catalytic methane combustion[J]. Journal of Fuel Chemistry and Technology, 2022, 50(2): 180-194.
[11]
HOU Z Q, DAI L Y, DENG J G, et al. Electronically engineering water resistance in methane combustion with an atomically dispersed tungsten on PDO catalyst[J]. Angewandte Chemie, 2022, 134(27): e202201655.
[12]
向小凤, 张波, 张向宇, 等. 烟气中Ce-Cu/γ-Al2O3催化剂催化CO氧化性能的研究[J]. 热力发电, 2021, 50(10): 124-129.
XIANG Xiaofeng, ZHANG Bo, ZHANG Xiangyu, et al. Study on CO oxidation performance of Ce-Cu/γ-Al2O3 catalyst in flue gas[J]. Thermal Power Generation, 2021, 50(10): 124-129.
[13]
张光学, 周安琪, 范海燕, 等. 铁铈氧化物催化剂脱硝性能及抗碱金属盐中毒性能研究[J]. 热力发电, 2016, 45(1): 37-41.
ZHANG Guangxue, ZHOU Anqi, FAN Haiyan, et al. Performance of Fe-Ce oxide denitration catalyst and its resistance to toxicity[J]. Thermal Power Generation, 2016, 45(1): 37-41.
[14]
LIU S M, XUE W J, JI Y J, et al. Interfacial oxygen vacancies at Co3O4-CeO2 heterointerfaces boost the catalytic reduction of NO by CO in the presence of O2[J]. Applied Catalysis B: Environmental, 2023, 32: 122151-122166.
[15]
ZHANG J, WANG M, GAO Z R, et al. Importance of species heterogeneity in supported metal catalysts[J]. Journal of the American Chemical Society, 2022, 144(11): 5108-5115.
[16]
田明姣, 黄宇, 杨沁, 等. CeO2的形貌构筑及其对1,2-二氯乙烷氧化过程的影响研究[J]. 中国稀土学报, 2023, 41(3): 587-596.
TIAN Mingjiao, HUANG Yu, YANG Qin, et al. Morphological configuration of CeO2 and effect on oxidation process of 1,2-dichloroethane[J]. Journal of The Chinese Society of Rare Earths, 2023, 41(3): 587-596.
[17]
XIA L H, XU S, JIAN Y F, et al. Efficient propane mineralization over unsaturated Pd cluster/CeO2 with prominent C-C cleavage capacity driven by inherent oxygen activation ability[J]. Journal of Hazardous Materials, 2024, 461: 132509-132521.
[18]
JIANG Z Y, JING M Z, FENG X B, et al. Stabilizing platinum atoms on CeO2 oxygen vacancies by metal-support interaction induced interface distortion: mechanism and application[J]. Applied Catalysis B: Environmental, 2020, 278: 119304-119319.
[19]
YOU R, LI Z R, CAI T, et al. Synthesis in a glovebox: utilizing surface oxygen vacancies to enhance the atomic dispersion of palladium on ceria for carbon monoxide oxidation and propane[J]. ACS Applied Nano Materials, 2018, 1(9): 4988-4997.
[20]
MA M D, YANG R, HE C, et al. Pd-based catalysts promoted by hierarchical porous Al2O3 and ZnO microsphere supports/coatings for ethyl acetate highly active and stable destruction[J]. Journal of Hazardous Materials, 2020, 401: 123281.
[21]
王晓亮. 双金属催化剂还原性能研究[J]. 工业催化, 2023, 31(9): 56-59.
WANG Xiaoliang. Investigation on reduction performance of bimetallic catalyst[J]. Industrial Catalysis, 2023, 31(9): 56-59.
[22]
CHU P Q, WANG S F, ZHANG Y, et al. Component regulation in novel La-Co-O-C composite catalyst for boosted redox reactions and enhanced thermal stability in methane combustion[J]. Journal of Environmental Sciences, 2023, 126: 459-469.
[23]
XU S Y, XIE F Q, XIE H M, et al. Effect of structure and composition on the CO2 hydrogenation properties over bimodal mesoporous CeCo composite catalyst[J]. Chemical Engineering Journal, 2019, 375: 122023-122035.
[24]
YANG C N, LU Y X, ZHANG L, et al. Defect engineering on CeO2-based catalysts for heterogeneous catalytic applications[J]. Small Structure, 2021, 2: 2100058-2100083.
[25]
唐仲恺, 段玖祥, 魏晗, 等. CeO2-WO3/TiO2同时催化脱除氮氧化物与氯苯研究[J]. 热力发电, 2022, 51(2): 125-131.
TANG Zhongkai, DUAN Jiuxiang, WEI Han, et al. Synergistic catalytic removal of nitrogen oxides and chlorobenzene by CeO2-WO3/TiO2[J]. Thermal Power Generation, 2022, 51(2): 125-131.
[26]
宋佳霖. 基于Cu/Al2O3催化剂的甲烷氧化还原特性研究[D]. 济南: 山东大学, 2023: 6.
SONG Jialin. Study on methane redox characterisitics based on Cu/Al2O3 catalyst[D]. Jinan: Shandong University, 2023: 6.
[27]
WANG Y, WANG P, LU X F, et al. Construction of mesoporous Ru@ZSM-5 catalyst for dichloromethane degradation: synergy between acidic sites and redox centers[J]. Fuel, 2023, 346: 128337-12347.
[28]
XIAO P P, WANG Y, WANG L Z, et al. Understanding the effect of spatially separated Cu and acid sites in zeolite catalysts on oxidation of methane[J]. Nature Communications, 2024, 15: 2718.
[29]
杨旸, 郑雯, 程党国, 等. 原位FT-IR技术在甲烷氧化反应研究中的应用[J]. 化学进展, 2009, 21(10): 2205-2211.
YANG Yang, ZHENG Wen, CHENG Dangguo, et al. The application of in situ FT-IR in the research of methane oxidation[J]. Progress in Chemistry, 2009, 21(10): 2205-2211.
[30]
LORBER K, ZAVASNIK J, ARCON I, et al. CO2 activation over nanoshaped CeO2 decorated with nickel for low-temperature methane dry reforming[J]. ACS Applied Materials & Interfaces, 2022, 14: 31862-31878.
[31]
高倩文, 王晓波, 邓存宝, 等. Pd-Pt/HZSM-5催化剂的制备及催化低浓度甲烷燃烧性能[J/OL]. 精细化工, 2024: 1. https://doi.org/10.13550/j.jxhg.20230459.
GAO Qianwen, WANG Xiaobo, DENG Cunbao, et al. Preparation of Pd-Pt/HZSM-5 catalyst and its catalytic performance for low-concentration methane combustion [J/OL]. Fine Chemicals, 2024: 1. https://doi.org/10.13550/j.jxhg.20230459.
[32]
YOO S, JANG G, KIM D. Effects of dealumination on the methane-combustion activity of Pd/SSZ-13 catalysts[J]. Applied Catalysis A: General, 2024, 670: 119528-119536.
2024年第53卷第7期
PDF下载
105
43
引用本文
BibTeX
文章信息
doi: 10.19666/j.rlfd.202402036
  • 接收时间:2024-02-20
  • 首发时间:2026-01-07
  • 出版时间:2024-07-25
补充材料
相关文章
文章信息
作者
出版历史
  • 收稿日期:2024-02-20
基金
National Key Research and Development Plan(2022YFB4101500)
国家重点研发计划(2022YFB4101500)
National Natural Science Foundation of China(22276145; 21922606)
国家自然科学基金项目(22276145; 21922606)
作者信息
    1.西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,陕西 西安 710049
    2.挥发性有机物污染控制材料与技术国家工程实验室,北京 101408

通讯作者:

何炽(1982),男,博士,教授,主要研究方向为大气污染控制技术,
参考文献
分享链接
https://castjournals.cast.org.cn/joweb/rlfd/CN/10.19666/j.rlfd.202402036
分享至
全文二维码

扫描看全文

引用本文
BibTeX
本文的引用情况
2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏