低Pt氧还原反应催化剂研究进展  

Latest development of low Pt oxygen reduction catalysts

作　　者：郭鑫波 柏景森 肖梅玲[1,2,3] 刘长鹏 金钊[1,2,3] 邢巍[1,2,3] GUO Xinbo;BAI Jingsen;XIAO Meiling;LIU Changpeng;JIN Zhao;XING Wei(Laboratory of Advanced Power Sources,State Key Laboratory of Electroanalytical Chemistry/Jilin Province Key Laboratory of Low Carbon Chemistry Power/Jilin Provincial Science and Technology Innovation Center of Hydrogen Energy,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;School of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,China;Chinese Academy of Sciences-Hong Kong Joint Laboratory for Hydrogen Energy,Changchun 130022,China)

机构地区：[1]中国科学院长春应用化学研究所先进化学电源实验室/电分析化学国家重点实验室/吉林省先进低碳化学电源重点实验室/吉林省氢能技术科技创新中心,长春130022 [2]中国科学技术大学应用化学与工程学院,合肥230026 [3]中国科学院-香港氢能联合实验室,长春130022

出　　处：《黑龙江大学自然科学学报》2024年第6期631-647,F0003,共18页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金面上项目(22272160);国家自然科学基金青年项目(22209168);吉林省科技发展计划项目(YDZJ202202CXJD011)。

摘　　要：Pt基电催化剂是目前性能最好的氧还原反应(Oxygen reduction reaction,ORR)催化剂,在保证活性和稳定性的前提下,减少Pt用量是实现其规模化应用的关键因素。本文分析了近年来具有高电催化性能低Pt的ORR催化剂,依据其显著特征,重点评述了合金、特殊结构和单原子3类低Pt的ORR催化剂,总结概述了优化提升性能的策略,如设计Pt位点的配位环境调控电子结构和提高Pt原子暴露率增加活性位点数目等。最后,概述了目前仍然面临的挑战,并提出了相应的策略。Pt-based electrocatalysts are currently the best performing oxygen reduction reaction(ORR)catalysts,and reducing the amount of Pt is a key factor in achieving its scaled-up application while ensuring catalytic activity and stability.By analyzing and summing up the ORR catalysts with high electrocatalytic performance as well as low Pt in recent years,three categories of alloys,special structures and single atoms according to the distinctive features of all catalysts are evaluated with emphasis.Several practical application strategies to optimize the property are summarized and outlined,such as designing the coordination environment of Pt sites to regulate the electronic structure,enhancing the exposure rate of Pt atoms to increase the number of active sites and so on.At last,the remaining challenges are reviewed briefly,at the same time corresponding strategies to address them are provided.

关 键 词：ORR Pt基催化剂 合金 特殊结构 单原子 

分 类 号：O646.5[理学—物理化学]