文献类型：期刊文献

英文题名：An amorphous nanoporous PdCuNi-S hybrid electrocatalyst for highly efficient hydrogen production

作者：Yang, Xinxin[1];Xu, Wence[1];Cao, Shuo[1];Zhu, Shengli[1,2,3];Liang, Yanqin[1,2,3];Cui, Zhenduo[1,2,3];Yang, Xianjin[1,2,3];Li, Zhaoyang[1,2,3];Wu, Shuilin[1,2,3];Inoue, Akihisa[1,2,3,4];Chen, Luyang[5]

机构：[1]Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China;[2]Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China;[3]Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300072, Peoples R China;[4]Kings Abudulaziz Univ, Dept Phys, Jeddah 22254, Saudi Arabia;[5]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：246

起止页码：156

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20190406422417);WOS:【SCI-EXPANDED(收录号:WOS:000460495400017)】；

基金：We gratefully acknowledge support by the National Natural Science Foundation of China (51771131) and Recruitment Program of Global Experts "1000 Talents Plan" of China (WQ20121200052). This work is also supported by National Natural Science Foundation of China (51502092) and The Program for Professor of Special Appointment (Eastern Scholar) at Shangshai Institutions of Higher Learning (TP 2015028).

语种：英文

外文关键词：Metal sulfide; Electrocatalyst; Hydrogen evolution reaction; Dealloying

摘要：A novel amorphous nanoporous PdCuNi-S electrocatalyst is synthesized by a two-step dealloying method. The as-formed nanoporous PdCuNi-S catalyst exhibits excellent catalytic activity for the hydrogen evolution reaction (HER) in acidic media, which is very close to commercial Pt/C catalyst. The overpotential at 10 mA cm(-2) and Tafel slope are 48 mV and 35 mV dec(-1), respectively. In addition, the catalyst shows good electrochemical stability in HER. The outstanding property of PdCuNi-S catalyst for hydrogen generation is attributed to the bicontinuous nanoporous structure, improved charge transfer, more bridging S-2(2-) and/or apical S2- in amorphous state and synergetic interactions of Pd, Cu, Ni and S.