Structure,Property,and Performance of Catalyst Layers in Proton Exchange Membrane Fuel Cells

作     者：Jian Zhao Huiyuan Liu Xianguo Li 

作者机构：Department of Mechanical and Mechatronics EngineeringUniversity of Waterloo200 University Avenue WestWaterlooON N2L 3G1Canada 

出 版 物：《Electrochemical Energy Reviews》 (电化学能源评论（英文）)

年 卷 期：2023年第6卷第1期

页      面：403-463页

核心收录：

学科分类：0808[工学-电气工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：financially supported by the Natural Sciences and Engineering Research Council of Canada(NSERC)via a Discovery Grant and Canadian Urban Transit Research&Innovation Consortium(CUTRIC)via Project No.160028. 

主　　题：PEM fuel cell Catalyst layer Microstructure Effective property Performance Durability 

摘      要：Catalyst layer(CL)is the core component of proton exchange membrane(PEM)fuel cells,which determines the performance,durability,and cost.However,difficulties remain for a thorough understanding of the CLs’inhomogeneous structure,and its impact on the physicochemical and electrochemical properties,operating performance,and durability.The inhomogeneous structure of the CLs is formed during the manufacturing process,which is sensitive to the associated materials,composi-tion,fabrication methods,procedures,and conditions.The state-of-the-art visualization and characterization techniques are crucial to examine the CL structure.The structure-dependent physicochemical and electrochemical properties are then thoroughly scrutinized in terms of fundamental concepts,theories,and recent progress in advanced experimental techniques.The relation between the CL structure and the associated effective properties is also examined based on experimental and theoretical findings.Recent studies indicated that the CL inhomogeneous structure also strongly affects the performance and degradation of the whole fuel cell,and thus,the interconnection between the fuel cell performance,failure modes,and CL structure is comprehensively reviewed.An analytical model is established to understand the effect of the CL structure on the effective properties,performance,and durability of the PEM fuel cells.Finally,the challenges and prospects of the CL structure-associated studies are highlighted for the development of high-performing PEM fuel cells.