Article(id=1319236741790282188, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236705027207343, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20220396, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1652630400000, receivedDateStr=2022-05-16, revisedDate=1653494400000, revisedDateStr=2022-05-26, acceptedDate=null, acceptedDateStr=null, onlineDate=1792460149476, onlineDateStr=2026-10-20, pubDate=1666195200000, pubDateStr=2022-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792460149476, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792460149476, creator=13701087609, updateTime=1792460149476, updator=13701087609, issue=Issue{id=1319236705027207343, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='10', pageStart='2579', pageEnd='2808', issueExtLink='null', onlineDate='null', pubDate='1666195200000', pubDateStr='2022-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792460140711, creator='13701087609', updateTime=1792460672919, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319238937323884737, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236705027207343, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319238937323884738, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236705027207343, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2622, endPage=2629, ext={EN=ArticleExt(id=1319236742218101197, articleId=1319236741790282188, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Fabrication and Performance of Paper-Structured Catalysts Based on Lanthanum Manganate Nanofibers Towards Soot Oxidation, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

In order to construct a high-efficiency paper catalysts for soot removal, it is very important to design different active elements and realize the synergistic effects with the matrix fibers. A series of La1-xKxMnO3 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) nanofiber catalysts were prepared via electrospinning. The oxidation performance of the catalyst for soot particles was examined by temperature programmed oxidation reaction. The defect effects induced by doping K+ ions in the LaMnO3 lattice on their catalytic performance evaluated by soot temperature-programmed oxidation were investigated by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and temperature programmed reduction analysis. The results show that all the nanofiber catalysts have a perovskite structure, while K2Mn4O8 as a new phase appears in the samples as x ≥ 0.3. The amount of active oxygen in the sample is affected by K+ ions replacing La3+ ions and Mn3+ ions transferring into Mn4+ ions. The replacement of A-site ions increases the degree of oxygen defects in the system, while the transformation of Mn3+ ions into Mn4+ ions determining the number of oxygen vacancies as a new phase can occur at a great content of K+ ions doped in the system. The sample La0.6K0.4MnO3 has an optimum catalytic activity at T50 of 347 ℃. The paper-structured catalyst prepared with a nanofiber to matrix fiber ratio of 1∶1 has a good catalytic activity at T50 of 478 ℃.

, authors=Xujie LIU, Hongbin SHI, Xuezhi ZHANG, Shilei CHU, Lei WANG, Gang YU, authorsList=Xujie LIU, Hongbin SHI, Xuezhi ZHANG, Shilei CHU, Lei WANG, Gang YU, authorCompany=null, correspAuthors=Gang YU, authorNote=

LIU Xujie (1997-), female, Master candidate. E-mail:

, correspAuthorsNote=
YU Gang (1983-), male, Ph.D., Associate Professor. E-mail:
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为构筑高效纸型催化剂用于碳烟消除,如何设计不同活性基元并实现与基体纤维的协同效应非常重要。通过静电纺丝法制备了一系列La1-xKxMnO3(x=0、0.1、0.2、0.3、0.4、0.5)纳米纤维催化剂,并以其为基元制备了纸型催化剂用于碳烟催化消除。采用X射线衍射仪、扫描电子显微镜、X射线光电子能谱以及程序升温还原等表征手段分析了纳米纤维催化剂中离子掺杂导致活性变化的原因,并进行了碳烟氧化性能评价。结果表明:所有的纳米纤维催化剂均呈现单一的钙钛矿结构,当x≥0.3时,样品中出现新相K2Mn4O8。样品中活性氧的数量是由K+置换La3+和Mn3+→Mn4+ 2个方面因素造成的。A位离子的置换增加了体系中氧缺陷程度,但是高含量K的引入引发新相的形成,使得体系中Mn3+→Mn4+开始占据主导地位,氧空位数量逐渐增加。样品La0.6K0.4MnO3具有最佳的催化活性,其T50为347 ℃。将纳米纤维与莫来石纤维按1∶1比例制备的纸型催化剂活性最佳,T50为478 ℃。

, authors=刘煦婕, 史宏斌, 张学志, 楚石磊, 王磊, 于刚, authorsList=刘煦婕, 史宏斌, 张学志, 楚石磊, 王磊, 于刚, authorCompany=null, correspAuthors=于刚, authorNote=

刘煦婕(1997—),女,硕士研究生。

, correspAuthorsNote=
于刚(1983—),男,博士,副教授。
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刘煦婕(1997—),女,硕士研究生。

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基于锰酸镧纳米纤维的纸型催化剂构筑及其碳烟消除性能
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刘煦婕 , 史宏斌 , 张学志 , 楚石磊 , 王磊 , 于刚
硅酸盐学报 | 研究论文 2022,50(10): 2622-2629
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硅酸盐学报 |研究论文 2022 , 50 (10) : 2622 -2629
基于锰酸镧纳米纤维的纸型催化剂构筑及其碳烟消除性能
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刘煦婕 , 史宏斌, 张学志, 楚石磊, 王磊, 于刚
作者信息
  • 石家庄铁道大学材料科学与工程学院,石家庄 050043
通讯作者:
于刚(1983—),男,博士,副教授。
作者简介:

刘煦婕(1997—),女,硕士研究生。

Fabrication and Performance of Paper-Structured Catalysts Based on Lanthanum Manganate Nanofibers Towards Soot Oxidation
Xujie LIU , Hongbin SHI, Xuezhi ZHANG, Shilei CHU, Lei WANG, Gang YU
Affiliations
  • School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • Corresponding Author:
    YU Gang (1983-), male, Ph.D., Associate Professor. E-mail:

    LIU Xujie (1997-), female, Master candidate. E-mail:

出版时间: 2022-10-20 doi: 10.14062/j.issn.0454-5648.20220396
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为构筑高效纸型催化剂用于碳烟消除,如何设计不同活性基元并实现与基体纤维的协同效应非常重要。通过静电纺丝法制备了一系列La1-xKxMnO3(x=0、0.1、0.2、0.3、0.4、0.5)纳米纤维催化剂,并以其为基元制备了纸型催化剂用于碳烟催化消除。采用X射线衍射仪、扫描电子显微镜、X射线光电子能谱以及程序升温还原等表征手段分析了纳米纤维催化剂中离子掺杂导致活性变化的原因,并进行了碳烟氧化性能评价。结果表明:所有的纳米纤维催化剂均呈现单一的钙钛矿结构,当x≥0.3时,样品中出现新相K2Mn4O8。样品中活性氧的数量是由K+置换La3+和Mn3+→Mn4+ 2个方面因素造成的。A位离子的置换增加了体系中氧缺陷程度,但是高含量K的引入引发新相的形成,使得体系中Mn3+→Mn4+开始占据主导地位,氧空位数量逐渐增加。样品La0.6K0.4MnO3具有最佳的催化活性,其T50为347 ℃。将纳米纤维与莫来石纤维按1∶1比例制备的纸型催化剂活性最佳,T50为478 ℃。

锰酸镧  /  纳米纤维  /  纸型催化剂  /  碳烟氧化

In order to construct a high-efficiency paper catalysts for soot removal, it is very important to design different active elements and realize the synergistic effects with the matrix fibers. A series of La1-xKxMnO3 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) nanofiber catalysts were prepared via electrospinning. The oxidation performance of the catalyst for soot particles was examined by temperature programmed oxidation reaction. The defect effects induced by doping K+ ions in the LaMnO3 lattice on their catalytic performance evaluated by soot temperature-programmed oxidation were investigated by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and temperature programmed reduction analysis. The results show that all the nanofiber catalysts have a perovskite structure, while K2Mn4O8 as a new phase appears in the samples as x ≥ 0.3. The amount of active oxygen in the sample is affected by K+ ions replacing La3+ ions and Mn3+ ions transferring into Mn4+ ions. The replacement of A-site ions increases the degree of oxygen defects in the system, while the transformation of Mn3+ ions into Mn4+ ions determining the number of oxygen vacancies as a new phase can occur at a great content of K+ ions doped in the system. The sample La0.6K0.4MnO3 has an optimum catalytic activity at T50 of 347 ℃. The paper-structured catalyst prepared with a nanofiber to matrix fiber ratio of 1∶1 has a good catalytic activity at T50 of 478 ℃.

lanthanum manganate  /  nanofibers  /  paper catalysts  /  soot oxidation
刘煦婕, 史宏斌, 张学志, 楚石磊, 王磊, 于刚. 基于锰酸镧纳米纤维的纸型催化剂构筑及其碳烟消除性能. 硅酸盐学报, 2022 , 50 (10) : 2622 -2629 . DOI: 10.14062/j.issn.0454-5648.20220396
Xujie LIU, Hongbin SHI, Xuezhi ZHANG, Shilei CHU, Lei WANG, Gang YU. Fabrication and Performance of Paper-Structured Catalysts Based on Lanthanum Manganate Nanofibers Towards Soot Oxidation[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (10) : 2622 -2629 . DOI: 10.14062/j.issn.0454-5648.20220396
  • 国家自然科学基金基金(51602208)
  • 石家庄铁道大学研究生创新基金(YC2021061)
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doi: 10.14062/j.issn.0454-5648.20220396
  • 接收时间:2022-05-16
  • 首发时间:2026-10-20
  • 出版时间:2022-10-20
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  • 收稿日期:2022-05-16
  • 修回日期:2022-05-26
基金
国家自然科学基金基金(51602208)
石家庄铁道大学研究生创新基金(YC2021061)
作者信息
    石家庄铁道大学材料科学与工程学院,石家庄 050043

通讯作者:

于刚(1983—),男,博士,副教授。
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2种不同金属材料的力学参数
科
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属数
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genus
种数
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species
占总种数比例
Percentage of
total species (%)
属
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
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