Article(id=1309633941385077012, tenantId=1146029695717560320, journalId=1308397254396182630, issueId=1309633894375326119, articleNumber=null, orderNo=null, doi=10.3724/2097-213X.2025.JFCT.0023, pmid=null, cstr=32157.14.2097-213X.2025.JFCT.0144, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1752768000000, receivedDateStr=2025-07-18, revisedDate=1756483200000, revisedDateStr=2025-08-30, acceptedDate=1757347200000, acceptedDateStr=2025-09-09, onlineDate=1790170663447, onlineDateStr=2026-09-23, pubDate=1771084800000, pubDateStr=2026-02-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790170663447, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790170663447, creator=13701087609, updateTime=1790170663447, updator=13701087609, issue=Issue{id=1309633894375326119, tenantId=1146029695717560320, journalId=1308397254396182630, year='2026', volume='54', issue='2', pageStart='20250054-226', pageEnd='20250275-294', issueExtLink='null', onlineDate='null', pubDate='1771084800000', pubDateStr='2026-02-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790170652240, creator='13701087609', updateTime=1790213058103, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309811757514846670, tenantId=1146029695717560320, journalId=1308397254396182630, issueId=1309633894375326119, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309811757514846671, tenantId=1146029695717560320, journalId=1308397254396182630, issueId=1309633894375326119, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=20250176-264, endPage=20250176-275, ext={EN=ArticleExt(id=1309633943192822037, articleId=1309633941385077012, tenantId=1146029695717560320, journalId=1308397254396182630, language=EN, title=Research on Ni-Co bimetallic-based composite materials and their electrocatalytic oxygen evolution performance, columnId=null, journalTitle=Journal of Fuel Chemistry and Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
A series of Ni-Co bimetallic oxides were synthesized via a microwave-assisted hydrothermal method. The phase structure, morphological features, valence states, and defects of the materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR). The results reveal the regulatory mechanism of Ni-Co bimetallic synergy on the formation of oxygen vacancies (Ov). When the molar ratio of Ni to Co was 1∶3, the obtained NiCo3Ox exhibited the best OER performance, delivering an overpotential of only 393 mV at a current density of 50 mA/cm2, along with a low Tafel slope (172.3 mV/dec) and catalytic stability exceeding 24 h. This superior activity is attributed to the synergistic redox interplay between Co2+/Co3+ and Ni2+/Ni3+, as further verified by in situ Raman spectroscopy, which confirmed that *OOH intermediate adsorption promoted reaction kinetics and that Ov mediated rapid electron transfer. Density functional theory (DFT) calculations further demonstrated that electronic coupling at the bimetallic interface enhanced the material’s conductivity. This study provides a new strategy for designing efficient OER catalysts based on oxygen-vacancy regulation.
, authors=Chuchu MENG
1, Yanan WANG
1, 2, *, Dan ZHANG
1, 2, Junhua LI
1, 2, *, authorsList=Chuchu MENG, Yanan WANG, Dan ZHANG, Junhua LI, authorCompany=null, correspAuthors=Yanan WANG, Junhua LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Journal of Fuel Chemistry and Technology. All rights reserved., 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, fund=null), CN=ArticleExt(id=1309633952902635860, articleId=1309633941385077012, tenantId=1146029695717560320, journalId=1308397254396182630, language=CN, title=微波水热法制备Ni-Co双金属氧化物及其电催化氧析出性能, columnId=1309584910000677174, journalTitle=燃料化学学报(中英文), columnName=RESEARCH PAPER, runingTitle=null, highlight=null, articleAbstract=
本工作通过微波水热法制备了系列Ni-Co双金属氧化物材料,通过X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶变换红外光谱(FT-IR)、X射线光电子能谱(XPS)和电子顺磁共振谱(EPR)等表征手段分析了材料的物相结构、形貌特征、元素价态及缺陷等,并揭示了Ni-Co双金属协同作用对氧空位(Ov)形成的调控机制。研究结果表明,当Ni与Co物质的量的比为1∶3时,所得产物NiCo3Ox表现出最优OER性能,在50 mA/cm2电流密度时过电位仅为393 mV,同时具备较低的Tafel斜率(172.3 mV/dec)和超过24 h的催化稳定性,这归因于其Co2+/Co3+与Ni2+/Ni3+氧化还原的协同作用并用原位拉曼验证了中间体*OOH吸附促进反应活性及Ov介导的电子快速转移机制,并通过DFT计算证明了双金属界面处的电子耦合效应增强了材料导电性。该研究为设计基于氧空位调控的高效OER催化剂提供了新策略。
, authors=孟楚楚
1, 王亚男
1, 2, *, 张丹
1, 2, 李君华
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, copyrightStatement=版权所有©燃料化学学报(中英文) 2026, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=aim8r5lfdanDWH+ldrMI5A==, magXml=ION/NP1fdf/S27kOw/k49w==, pdfUrl=null, pdf=HX6K1PLiuaOe5/QtQcq0dw==, pdfFileSize=15106337, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=uKtD+H/hRX+4bZQppI+rnQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=btq09qgji1PNyzufXZ6tww==, mapNumber=null, fund=null)}, authors=[Author(id=1309633953317871964, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=1471452369@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1309633953401758046, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, authorId=1309633953317871964, language=EN, stringName=Chuchu MENG, firstName=Chuchu, middleName=null, lastName=MENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Flowchart of the synthesis process for nickel-cobalt bimetallic oxide via microwave method, figureFileSmall=1J9I9maXm3Rrtv76Q1Z8Tg==, figureFileBig=uKtD+H/hRX+4bZQppI+rnQ==, tableContent=null), ArticleFig(id=1309633956899807612, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图1, caption=
微波法制备镍钴双金属氧化物的工艺流程示意图, figureFileSmall=1J9I9maXm3Rrtv76Q1Z8Tg==, figureFileBig=uKtD+H/hRX+4bZQppI+rnQ==, tableContent=null), ArticleFig(id=1309633957117911421, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.2, caption=
XRD patterns of (a) NiO and Co3O4; (b) Ni4CoOx, NiCoOx, NiCo3Ox and NiCo4Ox, figureFileSmall=DyqQFpQqw7A3JV4O9CgsyQ==, figureFileBig=0YMikTkHmBPidn7yz4fciA==, tableContent=null), ArticleFig(id=1309633957403124094, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图2, caption=
NiO、Co3O4(a)以及Ni4CoOx、NiCoOx、NiCo3Ox、NiCo4Ox(b)的XRD谱图, figureFileSmall=DyqQFpQqw7A3JV4O9CgsyQ==, figureFileBig=0YMikTkHmBPidn7yz4fciA==, tableContent=null), ArticleFig(id=1309633957533147520, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.3, caption=
The FT-IR spectra of different samples, figureFileSmall=rOeav5o88uKc0CysKbwa5g==, figureFileBig=Qa6NON+Vkontgy3aBvspWw==, tableContent=null), ArticleFig(id=1309633957843526017, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图3, caption=
不同样品的FT-IR光谱谱图, figureFileSmall=rOeav5o88uKc0CysKbwa5g==, figureFileBig=Qa6NON+Vkontgy3aBvspWw==, tableContent=null), ArticleFig(id=1309633958179070338, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.4, caption=
SEM images of (a)−(c) Co3O4 and (d)−(f) NiO, figureFileSmall=i3iro31/w9cQfD34cyoMDw==, figureFileBig=Ns54zvyfkMfhkemYfLB5Og==, tableContent=null), ArticleFig(id=1309633958267150723, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图4, caption=
Co3O4的SEM图像(a)−(c)与NiO的SEM图像(d)−(f), figureFileSmall=i3iro31/w9cQfD34cyoMDw==, figureFileBig=Ns54zvyfkMfhkemYfLB5Og==, tableContent=null), ArticleFig(id=1309633958363619716, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.5, caption=
(a), (b) SEM and (c) TEM images of NiCo3Ox, and the mapping images of (d) Ni, (e) Co and (f) O, figureFileSmall=Ar7TX+R7c/22sy4OX+lTJQ==, figureFileBig=t/xaDrBIM76zMAuLWbG+WA==, tableContent=null), ArticleFig(id=1309633958573334917, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图5, caption=
NiCo3Ox的SEM(a)、(b),TEM图像(c)与mapping图像Ni(d),Co(e),O(f), figureFileSmall=Ar7TX+R7c/22sy4OX+lTJQ==, figureFileBig=t/xaDrBIM76zMAuLWbG+WA==, tableContent=null), ArticleFig(id=1309633958699164038, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.6, caption=
N2 adsorption-desorption isotherms of NiCo3Ox, NiO and Co3O4(The inset image is BJH pore size distribution curves corresponding to each sample), figureFileSmall=3l4hp/FnY9yUqiznPnyOVw==, figureFileBig=SiOTkNZMehSc9Lem+K7vtw==, tableContent=null), ArticleFig(id=1309633958766272903, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图6, caption=
NiCo3Ox、NiO及Co3O4对应的N2吸附-脱附等温曲线,插图是样品对应的BJH孔径分布, figureFileSmall=3l4hp/FnY9yUqiznPnyOVw==, figureFileBig=SiOTkNZMehSc9Lem+K7vtw==, tableContent=null), ArticleFig(id=1309633959059874184, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.7, caption=
High-resolution XPS spectra of (a)−(c) NiCo3Ox; (d), (e) NiO and (f), (g) Co3O4, figureFileSmall=8mEosbYwVVDkhrj4XqygYA==, figureFileBig=jizX4UDWMKLXCTyq7yZuZg==, tableContent=null), ArticleFig(id=1309633959152148873, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图7, caption=
NiCo3Ox(a)−(c),NiO(d)、(e)和Co3O4(f)、(g)的XPS谱图, figureFileSmall=8mEosbYwVVDkhrj4XqygYA==, figureFileBig=jizX4UDWMKLXCTyq7yZuZg==, tableContent=null), ArticleFig(id=1309633959231840651, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.8, caption=
EPR spectra of NiCo3Ox, NiO and Co3O4, figureFileSmall=pLwP9XfBbBbKi618d9z/Wg==, figureFileBig=ZiW6qDGS17d5n5o8B96N5Q==, tableContent=null), ArticleFig(id=1309633959433167244, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图8, caption=
NiCo3Ox、NiO和Co3O4对应的EPR谱图, figureFileSmall=pLwP9XfBbBbKi618d9z/Wg==, figureFileBig=ZiW6qDGS17d5n5o8B96N5Q==, tableContent=null), ArticleFig(id=1309633959525441933, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.9, caption=
CV curves of different samples, figureFileSmall=l8RRo+9l10wRsIMvl6ZBmw==, figureFileBig=5L52XAlZVeWe0jJT1fikPA==, tableContent=null), ArticleFig(id=1309633959626105230, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图9, caption=
不同样品的CV曲线(a): Co3O4; (b): NiCo4Ox; (c): NiCoOx; (d): Ni4CoOx; (e): NiO, (f): NiCo3Ox; (g): RuO2.
, figureFileSmall=l8RRo+9l10wRsIMvl6ZBmw==, figureFileBig=5L52XAlZVeWe0jJT1fikPA==, tableContent=null), ArticleFig(id=1309633959835820431, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.10, caption=
(a) Electric double-layer capacitances (Cdl) calculated from CV curves; (b) Linear sweep voltammetry (LSV) curves;(c) Overpotentials at 50 mA/cm2; (d) Tafel slopes for different samples, figureFileSmall=Ly0pVSbG5z//m+or+CAl2Q==, figureFileBig=tFLlp5OhMKDHulGrbCSNhg==, tableContent=null), ArticleFig(id=1309633959890346384, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图10, caption=
不同样品的根据CV曲线计算得到的双电层电容(Cdl)(a),线性循环伏安(LSV)曲线(b),在50 mA/cm2下的过电位(c)以及Tafel斜率(d), figureFileSmall=Ly0pVSbG5z//m+or+CAl2Q==, figureFileBig=tFLlp5OhMKDHulGrbCSNhg==, tableContent=null), ArticleFig(id=1309633959978426769, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.11, caption=
Electrochemical impedance spectra (EIS) of NiCo3Ox, Co3O4, NiO and RuO2 samples, figureFileSmall=m4xnBVmvo2BLqAybto6ghg==, figureFileBig=7ScKspC/qq1yB4edYsx6Ug==, tableContent=null), ArticleFig(id=1309633960062312850, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图11, caption=
NiCo3Ox、Co3O4、NiO和RuO2样品的阻抗, figureFileSmall=m4xnBVmvo2BLqAybto6ghg==, figureFileBig=7ScKspC/qq1yB4edYsx6Ug==, tableContent=null), ArticleFig(id=1309633960137810323, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.12, caption=
(a) The stability test of NiCo3Ox and RuO2; (b), (c) The LSV curve of NiCo3Ox and RuO2 before and after the stability test, figureFileSmall=8ZWcQ96CuS0mnZmhiOtpxw==, figureFileBig=m+NwFtXkbgBxkIZotKKtCQ==, tableContent=null), ArticleFig(id=1309633960469160340, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图12, caption=
(a)为NiCo3Ox与RuO2的稳定性测试,(b)、(c)为NiCo3Ox与RuO2稳定性测试前后的LSV极化曲线, figureFileSmall=8ZWcQ96CuS0mnZmhiOtpxw==, figureFileBig=m+NwFtXkbgBxkIZotKKtCQ==, tableContent=null), ArticleFig(id=1309633960527880597, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.13, caption=
(a)−(c) SEM images before the stability test; (d)−(f) SEM images after the stability test; (g)−(i) Mapping images of samples, figureFileSmall=yq8JsdoUpqDbdy7DpsMJeg==, figureFileBig=E3syR9oATacwGr1ESdsGfg==, tableContent=null), ArticleFig(id=1309633960599183766, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图13, caption=
图(a)−(c)为样品稳定性测试前的SEM图像,(d)−(f)为稳定性测试后的SEM图像,(g)−(i)为样品的mapping谱图, figureFileSmall=yq8JsdoUpqDbdy7DpsMJeg==, figureFileBig=E3syR9oATacwGr1ESdsGfg==, tableContent=null), ArticleFig(id=1309633960674681239, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.14, caption=
High-resolution XPS spectra of NiCo3Ox after stability test, figureFileSmall=qtdLZ37jwO+9pWgO5v6tlQ==, figureFileBig=Snu/L6zmj7f/KdZ4gaI/DQ==, tableContent=null), ArticleFig(id=1309633960775344536, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图14, caption=
NiCo3Ox稳定性测试后的高分辨XPS谱图(a): Co 2p; (b): Ni 2p; (c): O 1s.
, figureFileSmall=qtdLZ37jwO+9pWgO5v6tlQ==, figureFileBig=Snu/L6zmj7f/KdZ4gaI/DQ==, tableContent=null), ArticleFig(id=1309633960846647705, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.15, caption=
In situ Raman image of NiCo3Ox samples, figureFileSmall=yMvgQSJiR0YI3sK8Ww4KZA==, figureFileBig=tyFogXvL7jWr42t0z+vCUw==, tableContent=null), ArticleFig(id=1309633960909562266, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图15, caption=
NiCo3Ox样品的原位拉曼光谱谱图, figureFileSmall=yMvgQSJiR0YI3sK8Ww4KZA==, figureFileBig=tyFogXvL7jWr42t0z+vCUw==, tableContent=null), ArticleFig(id=1309633961027002779, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.16, caption=
PDOS calculation results of (a) NiO, (b) Co3O4 and (c) NiCo3Ox, figureFileSmall=xGNJhWhEQ0WEzPold1F2UA==, figureFileBig=ybYjTXLCt2CCGLVXJb6SaQ==, tableContent=null), ArticleFig(id=1309633961089917340, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图16, caption=
NiO(a)、Co3O4(b)和NiCo3Ox(c)的PDOS计算, figureFileSmall=xGNJhWhEQ0WEzPold1F2UA==, figureFileBig=ybYjTXLCt2CCGLVXJb6SaQ==, tableContent=null), ArticleFig(id=1309633961169609117, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Fig.17, caption=
Band structures of (a) NiO, (b) Co3O4 and (c) NiCo3Ox, figureFileSmall=uPskqtqHH8nXvfbWpBchRg==, figureFileBig=qFQzXBAJEAMX2WNQBNkPNw==, tableContent=null), ArticleFig(id=1309633961236717982, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=图17, caption=
NiO(a)、Co3O4(b)和NiCo3Ox(c)的能带, figureFileSmall=uPskqtqHH8nXvfbWpBchRg==, figureFileBig=qFQzXBAJEAMX2WNQBNkPNw==, tableContent=null), ArticleFig(id=1309633961303826847, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=EN, label=Table1, caption=
Specific surface areas of different samples
, figureFileSmall=null, figureFileBig=null, tableContent=
| Sample | Surface area/(m2·g−1) |
|---|
| NiCo3Ox | 19.44±0.52 |
| NiO | 15.73±0.47 |
| Co3O4 | 6.59±0.31 |
), ArticleFig(id=1309633961375130016, tenantId=1146029695717560320, journalId=1308397254396182630, articleId=1309633941385077012, language=CN, label=表1, caption=
不同样品的比表面积
, figureFileSmall=null, figureFileBig=null, tableContent=
| Sample | Surface area/(m2·g−1) |
|---|
| NiCo3Ox | 19.44±0.52 |
| NiO | 15.73±0.47 |
| Co3O4 | 6.59±0.31 |
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