A Supported Palladium on Gallium-based Liquid Metal Catalyst for Enhanced Oxygen Reduction Reaction  

作　　者：MA Chunrong SONG Bingyi MA Zhentao WANG Xiaoqian TIAN Lin ZHANG Haoran CHEN Cai ZHENG Xusheng YANG Li-ming WU Yuen 

机构地区：[1]First Affiliated Hospital of USTC,Division of Life Sciences and Medicine,University of Science and Technology of China,Hefei 230026,P.R.China [2]Dalian National Laboratory for Clean Energy,Dalian 116023,P.R.China [3]Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica,Key Laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,Hubei Key Laboratory of Materials Chemistry and Service Failure,Hubei Engineering Research Center for Biomaterials and Medical Protective Materials,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,P.R.China [4]National Synchrotron Radiation Laboratory(NSRL),University of Science and Technology of China,Hefei 230029,P.R.China

出　　处：《Chemical Research in Chinese Universities》2022年第5期1219-1225,共7页高等学校化学研究（英文版）

基　　金：National Key Research and Development Program of China(No.2021YFE0191700);National Natural Science Foundation of China(Nos.22073033,21873032,21673087,21903032);Natural Science Foundation of Anhui Province,China(No.2108085QB70);Fundamental Research Funds for the Central Universities,China(Nos.WK2060000004,WK2060000021,WK2060000025,KY2060000180,2019kfyRCPY116);Collaborative Innovation Program of Hefei Science Center of CAS(No.2021HSC-CIP002);Natural Science Foundation of Hefei City,China(No.2021044);Startup Fund from Huazhong University of Science and Technology,China(Nos.2006013118,3004013105);Innovation and Talent Recruitment Base of New Energy Chemistry and Device,China(No.B21003).

摘　　要：Developing high-performance catalysts for oxygen reduction reaction to replace costly platinum-based materials is of great importance but still confronted with challenges.Herein,a kind of supported palladium liquid metal catalyst,which is prepared by galvanic replacement,surpasses commercial Pt/C and Pd/C in oxygen reduction catalysis with a higher half-wave potential of 0.92 V,mass activity of 1.85 A/mgPd at 0.90 V,and superior durability.The liquid metal support can both optimize the electronic structures of Pd sites and guarantee the dispersion of Pd atoms,which explains the enhanced activity and durability,respectively.This work opens an avenue for rational design of catalysts.

关 键 词：Liquid metal Supported catalyst Oxygen reduction ELECTROCATALYSIS 

分 类 号：O64[理学—物理化学]