High-loading Au nanoparticles on carbon by engineering surface charge and specific surface area of substrates  

作　　者：Xue Deng Siyang Wang Qianqian Ren Xintong Yan Wenbo Zhao Jianzhong Cui Shi Hu 

机构地区：[1]Department of Chemistry,School of Science,Tianjin Key Laboratory of Molecular Optoelectronic Science,Tianjin University,Tianjin,300072,China

出　　处：《Progress in Natural Science:Materials International》2024年第4期637-642,共6页自然科学进展·国际材料(英文版)

基　　金：support from the National Natural Science Foundation of China(No.22175127)

摘　　要：Energy transition towards net-zero society calls for utilization of renewable power to drive CO_(2)conversion in an efficient electrochemical way.The development of a commercial CO_(2)electrolyzer with positive tech-eco effect calls for active and durable electrocatalysts.High-loading gold on carbon(Au/C)with reduced particle size is the prerequisite for the highly-selective and highly energy-efficient CO production in such a CO_(2)electrolyzer,but a scalable synthetic method is missing.With combined control of ligand,substrate and pH value,Au/C catalysts with particle size within 5 nm and metal loading of 40 wt%and 60 wt%are synthesized on low and high surfacearea carbon,respectively.We also provide a thorough investigation of the effect of the ligand type,surface charge of gold nanoparticles(Au NPs)and surface area of carbon substrate on the loading limit of Au/C.

关 键 词：High-loading Gold nanoparticles Surface charge Specific surface area of substrates 

分 类 号：O643.36[理学—物理化学] X701[理学—化学]