Facile fabrication of a binary NiCo phosphide with hierarchical architecture for efficient hydrogen evolution reactions

被引：34

作者：

Ma, Shijie ^{[1
]}

Wang, Lina ^{[1
]}

Zhang, Songge ^{[1
]}

Jin, Haonan ^{[1
]}

Wan, Meng ^{[1
]}

Pan, Yi ^{[1
]}

Zhang, Ting ^{[1
]}

Wen, Yankun ^{[1
]}

Zhang, Ming ^{[1
]}

Zhu, Han ^{[2
]}

Du, Mingliang ^{[2
]}

机构：

[1] Zhejiang Sci Tech Univ, Coll Mat & Text, Hangzhou 310018, Peoples R China

[2] Jiangnan Univ, Sch Chem & Mat Engn, Minist Educ, Key Lab Synthet & Biol Colloids, Wuxi 214122, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 08期

关键词：

Binary NiCo phosphide; Hierarchical architecture; Electrocatalyst; HER; STABLE BIFUNCTIONAL ELECTROCATALYSTS; NANOSHEET ARRAYS; CARBON CLOTH; HIGHLY EFFICIENT; ALKALINE; CATALYST; FOAM; NANOPARTICLES; NANOFIBERS; NANOTUBES;

D O I：

10.1016/j.ijhydene.2018.12.133

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：

Exploring and designing efficient non-noble catalysts formed by element doping and nanostructure modification for the hydrogen evolution reaction (HER) is of critical importance with respect to sustainable resources. Herein, we have prepared a three-dimensional binary NiCo phosphide with hierarchical architecture (HA) composed of NiCoP nanosheets and nanowires grown on carbon cloth (CC) via a facile hydrothermal method followed by oxidation and phosphorization. Due to its unique hierarchical nanostructure, the NiCoP HA/CC electrocatalyst exhibits excellent performance and good working stability for the HER in both acidic and alkaline conditions. The obtained NiCoP HA/CC shows excellent HER activity with a low potential of 74 and 89 mV at 10 mA cm(-2), a small Tafel slope of 77.2 and 99.8 mV dec(-1) and long-term stability up to 24 h in acidic and alkaline electrolyte, respectively. NiCoP HA/CC, a non-noble metal material, is a promising electrocatalyst to replace noble metal-based electrocatalysts for the HER. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：4188 / 4196

页数：9

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