文献类型：期刊文献

英文题名：The nature of interaction between Au and heteroatoms-doped carbon nanotubes: Size and electronic effects on CO2 electroreduction

作者：Wang, Ancheng[1];Zhu, Yuejin[1];Sun, Jinlong[1];Hu, Shuozhen[1];Zhang, Xinsheng[1];Niu, Dongfang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：635

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20232414211307);WOS:【SCI-EXPANDED(收录号:WOS:001016484600001)】；

基金：Acknowledgement This work was financially supported by the National Natural Science Foundation of China (No. 21972042, 22272051) .

语种：英文

外文关键词：CO2 electroreduction; Electrocatalysis; Au-CNTs interaction; Support effects

摘要：Nanostructured metal electrocatalysts have recently been extensively researched for CO2 electroreduction reaction (CO2RR) to CO. Nevertheless, their exhibited low reaction activity can be attributed to the weak adsorption of CO2 (or relevant intermediates) on the catalyst surface. Herein, the potent nanometallic catalyst is selectively designed based on Au nanoparticles (NPs) as a module with heteroatom (O-, N-, and S-) doped carbon nanotubes (CNTs) as supports and used as a booster toward enhancing CO2RR. The structural characterization and electrochemical tests were conducted to study the relationship between the support effects (size and electronic effects) of CNTs and the catalytic performance of Au NPs. By comparison, the S-doped CNTs loading with Au NPs achieved a Faraday efficiency of 97% for CO at 0.8 V vs RHE and a catalyst stability of 30 h at a current density of similar to 18 mA cm(-2). This work may guide a method to optimize nanometallic electrocatalysts for CO2RR in a relatively cost-effective manner.