Rapid Joule-heating synthesis of metal/carbon-based electrocatalysts for efficient carbon dioxide reduction  

作　　者：Weijian Guo Xueying Cao Ao Zhou Wenwen Cai Jintao Zhang 

机构地区：[1]Key Laboratory for Colloid and Interface Chemistry(Ministry of Education),School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,China

出　　处：《ChemPhysMater》2025年第1期64-70,共7页化学物理材料(英文)

基　　金：supported by the National Natural Science Foundation of China(22175108 and 22379086);the Natural Science Foundation of Shandong Province(ZR2020JQ09 and ZR2022ZD27);the Taishan Scholars Program of Shandong Province(tstp20221105).

摘　　要：Carbon-loaded metal nanoparticles(NPs)are widely employed as functional materials for electrocatalysis.In this study,a rapid thermal shock method was developed to load various metal nanoparticles onto carbon supports.Compared to conventional pyrolysis processes,Joule heating enables rapid heating to elevated temperatures within a short period,effectively preventing the migration and aggregation of metal atoms.Simultaneously,the anchoring effect of defective carbon carriers ensures the uniform distribution of NPs on the carbon supports.Additionally,nitrogen doping can significantly enhance the electronic conductivity of the carbon matrix and strengthen the metal-carbon interactions,thereby synergistically improving catalyst performance.When used as electrocatalysts for electrocatalytic CO_(2)reduction,bismuth-,indium-,and tin/carbon-carrier-based catalysts exhibit excellent Faraday efficiencies of 92.8%,86.4%,and 73.3%,respectively,for formate generation in flow cells.The influence of different metals and calcination temperatures on catalytic performance was examined to provide valuable insights into the rational design of carbon-based electrocatalysts with enhanced electrocatalytic activity.

关 键 词：ELECTROCATALYSIS Joule heating Carbon materials Carbon dioxide reduction 

分 类 号：O64[理学—物理化学]