文献类型：期刊文献

英文题名：Disordered and ultrafine PtNiMo alloy for superior electrocatalytic hydrogen evolution in alkaline

作者：He, Yukuai[1,2];Hu, Juanjuan[1,2];Yin, Weiya[1,2];Xing, Yu[1,2];Hu, Feng[1,2];Wei, Hui[1,2];Wei, Hehe[3];Li, Jing[1,2]

机构：[1]Chaohu Univ, Engn Technol Ctr, Dept Educ Anhui Prov, Chaohu 238024, Anhui, Peoples R China;[2]Chaohu Univ, Coll Chem & Mat Engn, Chaohu 238024, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2023

卷号：301

外文期刊名：MATERIALS CHEMISTRY AND PHYSICS

收录：;EI(收录号：20231413831634);WOS:【SCI-EXPANDED(收录号:WOS:001058206400001)】；

基金：This study was supported by the National Natural Science Foundations of China (Grant 22102057) and Shanghai Sailing Program (21YF1409400) . The Key Research and Development Plan of Anhui Province (Nos. 202003a05020051) . Key Projects of Natural Science Research in universities of Anhui Province (KJ2020A0675, KJ2021A1023) . Special Project of Engineering Center of Chaohu University (XLY-202114) . Innovation and Entrepreneurship of College Students (S202110380028) . The authors thank Research Center of Analysis and Test of East China University of Science and Technology for the characterizations and Feringa Nobel Prize Scientist Joint Research Center.

语种：英文

外文关键词：PtNiMo; Hydrogen evolution reaction; Disordered; Direct annealing

摘要：Developing efficient and stable Pt-based alloy catalysts toward hydrogen evolution reaction (HER) is great of importance for the industrial and sustainable applications of hydrogen production. Herein, we fabricate the defective and ultrafine PtNiMo catalyst with modified electronic structure and alloy structure through the introduction of saturated potassium chloride solution. In alkaline conditions, the PtNiMo alloy catalyst exhibits the ultralow overpotentials of 39 and 319 mV at the current density of 10 and 300 mA cm-2, respectively, accompanied with small Tafel slope of 31 mV dec- 1 and high mass activities of 6.1 A gPt- 1 at the overpotential of 75 mV. Moreover, the PtNiMo alloy catalyst shows superior electrocatalytic durability, together with negligible decay over 5000 cyclic voltammetry cycles for HER operations. The work offers an efficient route to achieve highly efficient electrocatalysts with defective structure for energy storage and conversion devices.