文献类型：期刊文献

英文题名：Sharp-Tipped Zinc Nanowires as an Efficient Electrocatalyst for Carbon Dioxide Reduction

作者：Li, Yu Hang[1];Liu, Peng Fei[1];Li, Chunzhong[1];Yang, Hua Gui[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：24

期号：58

起止页码：15486

外文期刊名：CHEMISTRY-A EUROPEAN JOURNAL

收录：;EI(收录号：20183805846810);WOS:【SCI-EXPANDED(收录号:WOS:000447636000007)】；

基金：This work was financially supported by National Natural Science Foundation of China (21808061 and 21573068), National Natural Science Funds for Distinguished Young Scholar (51725201), Fundamental Research Funds for the Central Universities (222201718002 and 222201714001), National Postdoctoral Program for Innovative Talents (BX201600050), Shanghai Sailing Program (17YF1402900), "Chen Guang" project supported by Shanghai Municipal Education Commission Shanghai Education Development Foundation (16CG31) and China Postdoctoral Science Foundation Funded Project (2016M601523).

语种：英文

外文关键词：carbon dioxide reduction; electrochemistry; mesoscale structures; sharp tip structure; zinc

摘要：Electrochemical carbon dioxide reduction is a key reaction for carbon dioxide conversion to valuable fuels and chemicals. Due to the intrinsic stability of the carbon dioxide molecule, a catalyst is required to minimize the energy input and improve the reaction rates. Although the developed catalysts still suffer from low catalytic activity, selectivity, and stability, these could be enhanced by the involvement of sharp tip structure. Here, we report a nanowire-like zinc electrocatalyst with sharp tips for carbon dioxide reduction. The catalyst achieves a geometry current density of -40 mA cm(-2) at a potential of -0.95V versus reversible hydrogen electrode over 35 hours with a stable carbon monoxide Faradaic efficiency of 98 +/- 2%. The carbon monoxide partial current density surpasses by 60% of that of the best reported zinc catalyst.