文献类型：期刊文献

英文题名：Efficient CO2 Electroreduction on Ag2S Nanodots Modified CdS Nanorods as Cooperative Catalysts

作者：Cheng, Ling[1];Wang, Yating[1];Li, Yuhang[1];Shen, Yi[1];Zhen, Yue[1];Xing, Zhanqi[1];Lin, Liwan[1];Chen, Aiping[1];Zhu, Yihua[1];Li, Chunzhong[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai Engn Res Ctr Hierarch Nanomat,Frontiers, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2021

卷号：13

期号：4

起止页码：1161

外文期刊名：CHEMCATCHEM

收录：;EI(收录号：20210309784061);WOS:【SCI-EXPANDED(收录号:WOS:000607615000001)】；

基金：This work was supported by the National Natural Science Foundation of China (21808061, 21838003, 21676093, 91834301), the Shanghai Scientific and Technological Innovation Project (18JC1410500, 19JC1410400), the Innovation Program of Shanghai Municipal Education Commission and "the Fundamental Research Funds for the Central Universities" (222201718002).

语种：英文

外文关键词：Cadmium sulfide; Carbon dioxide reduction; Cooperative electrocatalyst; Electrochemistry; Silver sulfide

摘要：CdS nanorods have been regarded as a promising candidate for electrocatalytic CO2 reduction compared with other chalcogenide catalysts, owing to the high Faradaic efficiency for producing CO in aqueous electrolyte. Unfortunately, the CO generation rate of the bare CdS is relatively low due to the poor intrinsic activity. In this work, we modify the surface of CdS nanorods by Ag2S nanodots to promote the CO2 reduction activity. With 5 wt % loading of Ag2S nanodots, we achieve the highest CO partial current density of 10.6 mA cm(-2) at an applied potential of -1.1 V vs RHE, 11 % and 93 % enhancement compared to the separately synthesized CdS and Ag2S, respectively. When using flow cell to accelerate the CO2 mass transfer, the cooperative catalyst realizes similar to 95 % Faradaic efficiency for C-1 products with a fast CO2 reduction rate at a current density of 200 mA cm(-2).