文献类型：期刊文献

英文题名：Multimetallic Ni-Mo/Cu nanowires as nonprecious and efficient full water splitting catalyst

作者：Zhao, Shunan[1];Huang, Jianfei[2];Liu, Yanyan[1];Shen, Jianhua[1];Wang, Hao[1];Yang, Xiaoling[1];Zhu, Yihua[1];Li, Chunzhong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

年份：2017

卷号：5

期号：8

起止页码：4207

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20170903392870);WOS:【SCI-EXPANDED(收录号:WOS:000395309800050)】；

基金：This study was supported by the National Natural Science Foundation of China (21322607, 21406072, 21471056, 21676093 and 91534202), the Basic Research Program of Shanghai (15JC1401300), the Key Scientific and Technological Program of Shanghai (14521100800), the International Science and Technology Cooperation Program of China (2015DFA51220), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Platinum compounds - Nanowires - Electrolytes - Potassium hydroxide - Oxygen - Hydrogen - Scaffolds

摘要：In this study, excellent full water splitting achieved with a rationally structured multimetallic Ni-Mo/Cu nanowire free-standing electrode prepared via scalable electrochemistry is reported. By combining a conductive nanostructured scaffold and highly active outer layers, the as-prepared Ni-Mo/Cu nanowires deliver superior hydrogen and oxygen evolution performance. To achieve a 20 mA cm(-2) catalytic current in a 1 M KOH electrolyte, the NM-CNW requires an overpotential of only 152 mV for hydrogen evolution and 280 mV for oxygen evolution. When assembled into a full electrolyzer, the Ni-Mo/Cu nanowires can drive full water splitting at nearly 100% faradaic efficiency steadily up to 12 h without any significant performance decay, and afford a catalytic current close to that of the state-of-the-art Pt-RuO2 system over long-term operation.