High-performance alkaline hydrogen evolution of NiMoP2 nanowire boosted by bimetallic synergic effect

被引：26

作者：

He, Xu ^{[1
]}

Hong, Wenting ^{[1
,2
]}

Jian, Chuanyong ^{[1
]}

Li, Jing ^{[1
]}

Cai, Qian ^{[1
]}

Liu, Wei ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 41期

基金：

中国国家自然科学基金;

关键词：

Bimetallic synergic effect; Alkaline; Hydrogen evolution reaction; NiMoP2; nanowire; EFFICIENT ELECTROCATALYST; MOLYBDENUM PHOSPHIDE; WATER; DESIGN;

D O I：

10.1016/j.ijhydene.2019.07.048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hydrogen evolution reaction (HER) in alkaline conditions usually requires a higher over-potential compared with acidic conditions due to the extra energy barrier originating from the additional water dissociation step. In this work, the theoretical calculation has confirmed that this challenge can be solved by the bimetallic synergic effect on binary transition metal catalysts. We report a simple method to synthesize NiMoP2 nanowires with (100) plane which can precisely expose Ni and Mo atom. The synthesized NiMOP2 nanowires exhibit a small overpotential of 87 mV to reach 10 mA cm(-2) with a low Tafel slope of 66 mV dec(-1) and long-term stability in alkaline solutions. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：23066 / 23073

页数：8

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