材料科学
电催化剂
分解水
析氧
化学工程
磷化物
双金属片
电解
无定形固体
制氢
催化作用
钼
钴
电解质
阳极
无机化学
碱性水电解
镍
电化学
电解水
化学
冶金
电极
光催化
金属
生物化学
有机化学
物理化学
工程类
作者
Yunpeng Wei,Li Wei,Dazhi Li,Lingya Yi,Weihua Hu
标识
DOI:10.1016/j.ijhydene.2021.12.106
摘要
Efficient and sustainable Janus catalysts toward hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are highly desirable for future hydrogen production via water electrolysis. Herein we report an active Janus electrocatalyst of amorphous-crystalline cobalt-molybdenum bimetallic phosphide heterostructured nanosheets on nickel foam (CoMoP/CoP/NF) for efficient electrolysis of alkaline water. As-reported CoMoP/CoP/NF consists of amorphous bimetal phosphide nanosheets doped with crystalline CoMoP/CoP heterostructured nanoparticles on NF. It can efficiently catalyze both HER (η = 127 [email protected] mA cm−2) and OER (η = 308 [email protected] mA cm−2) in alkaline electrolyte with long-term durability. Serving as anode and cathode of water electrolyzer, CoMoP/CoP/NF generates electrolytic current of 10, 50 and 100 mA cm−2 at low voltage of 1.50, 1.59, and 1.67 V, respectively.
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