Self-Supported Nanoporous Cobalt Phosphide Nanowire Arrays: An Efficient 3D Hydrogen-Evolving Cathode over the Wide Range of pH 0-14

被引：2195

作者：

Tian, Jingqi ^{[1
,2
]}

Liu, Qian ^{[1
]}

Asiri, Abdullah M. ^{[3
,4
]}

Sun, Xuping ^{[1
,3
,4
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia

[4] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, Jeddah 21589, Saudi Arabia

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2014年 / 136卷 / 21期

基金：

中国国家自然科学基金;

关键词：

ACTIVE EDGE SITES; EVOLUTION REACTION; H-2; PRODUCTION; ELECTRONIC-STRUCTURE; GENERATING HYDROGEN; WATER; CATALYSTS; MOS2; CO; ELECTROCATALYST;

D O I：

10.1021/ja503372r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this Communication, we report the topotactic fabrication of self-supported nanoporous cobalt phosphide nanowire arrays on carbon cloth (Cop/CC) via low-temperature phosphidation of the corresponding Co(OH)F/CC precursor. The CoP/CC, as a robust integrated 3D hydrogen-evolving cathode, shows a low onset overpotential of 38 mV and a small Tafel slope of Si mV dec(-1), and it maintains its catalytic activity for at least 80 000 s in acidic media. It needs overpotentials (eta) of 67, 100, and 204 mV to attain current densities of 10, 20, and 100 mA cm(-2), respectively. Additionally, this electrode offers excellent catalytic performance and durability under neutral and basic conditions.

引用

页码：7587 / 7590

页数：4

共 48 条

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