高等学校化学学报2024，Vol.45Issue(4)：128-136,9.DOI:10.7503/cjcu20240005
电沉积NiCu合金锚定Co2P纳米线调控电子结构增强的析氢反应
Electrodeposited NiCu Alloy Anchored Co2P Nanowires Enhancing Hydrogen Evolution Reaction by Modulating Electronic Structure
摘要
Abstract
The development of efficient and stable hydrogen evolution reaction(HER)is the key to realize the widespread industrial application of electrolytic water technology.In this paper,HER catalysts CuAl@Co2P/NF with three-dimensional highly dispersed non-homogeneous phase were synthesized by hydrothermal-pyrolysis-electrodepo-sition using nickel foam(NF)as substrate.The formation of heterojunction between crystalline and amorphous surfaces increases the active sites of the catalyst itself,and the synergistic effect between the elements makes the Co atoms in the system rearrange their electrons outside the nucleus,reducing the adsorption capacity for the adsorbed H*,and accelerating the reaction kinetics in the process of hydrogen precipitation reaction.The catalyst exhibited favorable HER activity and stability in both alkaline and acidic environments,and the overpotential required to drive a current of 10 mA/cm2 was measured at 83 and 27 mV,respectively,while the potential remained essentially unchanged after continuous operation for 72 h in an alkaline environment.This work is informative for the construc-tion of HER catalysts with highly dispersed non-homogeneous phase pairs.关键词
磷化物/镍铜合金/异质结/电催化/析氢反应Key words
Phosphide/NiCu Alloy/Heterojunction/Electrocatalysis/Hydrogen evolution reaction分类
化学化工引用本文复制引用
刘文欢,王康康,窦嘉阳,张彤琛,董社英..电沉积NiCu合金锚定Co2P纳米线调控电子结构增强的析氢反应[J].高等学校化学学报,2024,45(4):128-136,9.基金项目
国家自然科学基金(批准号:No.21575111)和陕西省重点研发计划基金(批准号:2024GX-YBXM-347)资助. Supported by the National Natural Science Foundation of China(No.21575111)and the Key Research and Development Plan Foundation of Shaanxi Province,China(No.2024GX-YBXM-347). （批准号:No.21575111）
