中文版 | English
Title

Enhancing Voltage Reversal Tolerance of Proton Exchange Membrane Fuel Cells by Tuning the Microstructure of IrOx Catalysts

Author
Corresponding AuthorZhao, Tianshou; Zeng, Lin
Publication Years
2022-12-01
DOI
Source Title
ISSN
1944-8244
EISSN
1944-8252
Abstract
Voltage reversal of proton exchange membrane fuel cells caused by hydrogen deficiency seriously deteriorates the anodes and lowers their performance and lifetime. A commonly used method is to add oxygen evolution reaction catalysts (e.g., IrO2) to the anode to extend the water electrolysis plateau against harmful carbon corrosion. Herein, strongly connected IrOx nanoparticles (SC-IrOx) are prepared by removing the low surface area carbon carrier of the as-synthesized Ir/C catalyst. The reversal-tolerant anode with SC-IrOx owns an anti-reversal time of 9.32 h, which is 3.2 and 4.4 times that of the reversal-tolerant anode with commercial IrOx and weakly connected IrOx, respectively. Further transmission electron microscope characterizations reveal that SC-IrOx can construct a stable electron and proton transport pathway in the anode catalyst layer, which can delay the isolation of oxygen evolution reaction catalyst from the electron and proton conducting network, thus extending the water electrolysis plateau. Herein, our findings suggest that tuning the microstructures of IrOx catalysts is indeed an effective and promising approach to extend the water electrolysis plateau and alleviate the performance degradation of proton exchange membrane fuel cells during the voltage reversal process.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
[21905129] ; [JCYJ20190809143815709] ; [JCYJ20200109141216566] ; [2021A1515010412]
WOS Research Area
Science & Technology - Other Topics ; Materials Science
WOS Subject
Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Accession No
WOS:000901548600001
Publisher
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/420802
DepartmentDepartment of Mechanical and Energy Engineering
Affiliation
1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, SUSTech Energy Inst Carbon Neutral, Shenzhen 518055, Peoples R China
First Author AffilicationDepartment of Mechanical and Energy Engineering;  Southern University of Science and Technology
Corresponding Author AffilicationDepartment of Mechanical and Energy Engineering;  Southern University of Science and Technology;  
First Author's First AffilicationDepartment of Mechanical and Energy Engineering
Recommended Citation
GB/T 7714
Wang, Yameng,Jiang, Yuting,Liao, Jianhua,et al. Enhancing Voltage Reversal Tolerance of Proton Exchange Membrane Fuel Cells by Tuning the Microstructure of IrOx Catalysts[J]. ACS Applied Materials & Interfaces,2022.
APA
Wang, Yameng,Jiang, Yuting,Liao, Jianhua,Li, Zheng,Zhao, Tianshou,&Zeng, Lin.(2022).Enhancing Voltage Reversal Tolerance of Proton Exchange Membrane Fuel Cells by Tuning the Microstructure of IrOx Catalysts.ACS Applied Materials & Interfaces.
MLA
Wang, Yameng,et al."Enhancing Voltage Reversal Tolerance of Proton Exchange Membrane Fuel Cells by Tuning the Microstructure of IrOx Catalysts".ACS Applied Materials & Interfaces (2022).
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