Experimental and numerical efforts to improve oxygen mass transport in porous catalyst layer of proton exchange membrane fuel cells  

作　　者：Zhaojing Ni Kai Han Xianchun Chen Lu Wang Bo Wang 

机构地区：[1]Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials,Key Laboratory of Cluster Science,Ministry of Education,Frontiers Science Center for High Energy Material,Advanced Technology Research Institute(Jinan),School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China [2]Beijing Institute of Technology Chongqing Innovation Center,Beijing Institute of Technology,Chongqing 401120,China

出　　处：《Nano Research Energy》2023年第4期23-40,共18页纳米能源研究（英文）

基　　金：This work was financially supported by the National Key Research and Development Program of China(No.2020YFB1506300);the National Natural Science Foundation of China(No.21901019);the Beijing Institute of Technology Research and Innovation Promoting Project(No.2022YCXY024);The authors acknowledge the financial support of Chongqing Natural Science Foundation(No.cstc2020jcyj-msxmX0759).

摘　　要：The effective management of oxygen transport resistance(OTR)within the cathode catalyst layer(CCL)is crucial for achieving a high catalyst performance at low platinum(Pt)loading.Over the past two decades,significant advancements have been made in the development of various high active platinum-based catalysts,aiming at enhancing oxygen mass transport and the oxygen reduction reaction(ORR).However,experimental investigations of transport processes in porous media are often computational costs and restrained by limitations in in-situ measurement capabilities,as well as spatial and temporal resolution.Fortunately,numerical simulation provides a valuable alternative for unveiling the intricate relationship between local transport properties and overall cell performance that remain unresolved or uncoupled through experimental approach.In this review,we elucidate the primary experimental and numerical efforts undertaken to improve OTR.We consolidate the available literature on OTR values and perform a quantitative comparison of the effectiveness of different strategies in mitigating OTR.Furthermore,we analyze the intrinsic limitations and challenges associated with current experimental and numerical methods.Finally,we outline future prospect for advancements in both experimental techniques and modelling methods.

关 键 词：porous media catalyst layer mass transport high-performance fuel cells 

分 类 号：O64[理学—物理化学]