Electrodeposition of self-supported NiMo amorphous coating as an efficient and stable catalyst for hydrogen evolution reaction
Electrodeposition of self-supported NiMo amorphous coating as an efficient and stable catalyst for hydrogen evolution reaction作者机构:School of Materials Science and EngineeringTianjin UniversityTianjin300072China Department of PhysicsUniversity of Sistan and BaluchestanZahedan98167-45845Iran
出 版 物:《Rare Metals》 (稀有金属(英文版))
年 卷 期:2022年第41卷第8期
页 面:2624-2632页
核心收录:
学科分类:081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程(可授工学、理学学位)]
基 金:financially supported by the National Natural Science Foundation of China (No.51771131)
主 题:Electrodeposition NiMo coating Hydrogen evolution reaction(HER) Alkaline water electrolysis
摘 要:NiMo-based materials have been identified as potential candidates of Pt/C electrocatalysts for hydrogen evolution reaction(HER)due to appropriate binding energy to hydrogen,and good resistance to corrosive ***,little work has been carried out to enhance the catalytic performance in large-scale water-alkali *** NoMo amorphous coating,as a highefficient and cost-effective catalyst toward HER,was synthesized by a facile electrodeposition strategy in this *** effects of the pH value of electrolyte on the structure and HER activity of NiMo coating were *** as-prepared NiMo_((pH10))exhibited the highest HER activity with overpotentials of 63.9 and 157.1 mV(***,with 80%potential drop due to electrical resistance(iR)compensation)at the current density of-10 mA·cm^(-2)and-100 mA·cm^(-2).This NiMo_((pH10))coating also had excellent long-term durability of up to100 h stable operation under the constant current density of-100 mA·cm^(-2).The rapid HER kinetics and outstanding endurance can be ascribed to the NiMo compact coating with amorphous structures as well as good contact between NiMo coating and Ni foam substrate,endowing it grand feasibility in practical industrial applications.