An ultrafine platinum–cobalt alloy decorated cobalt nanowire array with superb activity toward alkaline hydrogen evolution

Ziqiang Wang; Xiang Ren; Yonglan Luo; Liang Wang; Guanwei Cui; Fengyu Xie; Hongjing Wang; Ying Xie; Xuping Sun

doi:10.1039/C8NR02071J

An ultrafine platinum–cobalt alloy decorated cobalt nanowire array with superb activity toward alkaline hydrogen evolution†

Ziqiang Wang,

^ab Xiang Ren,^a Yonglan Luo,^a Liang Wang,

^b Guanwei Cui,^c Fengyu Xie,^d Hongjing Wang,

*^b Ying Xie*^e and Xuping Sun

*^a

Author affiliations

* Corresponding authors

^a Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu 610054, China
E-mail: xpsun@uestc.edu.cn

^b College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
E-mail: hjw@zjut.edu.cn

^c College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China

^d College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China

^e Laboratory of Functional Inorganic Material Chemistry, Heilongjiang University, Harbin 150080, Heilongjiang, China
E-mail: xieying@hlju.edu.cn

Abstract

It is highly desired to design and develop highly efficient electrocatalysts for alkaline hydrogen evolution reactions. Herein, we report the development of ultrafine PtCo alloy nanoparticle decorated one-dimensional Co nanowires grown on Ti mesh (PtCo–Co/TiM). Owing to its favorable composition and structure, the PtCo–Co/TiM can deliver an ultrahigh current density of 46.5 mA cm⁻² at an overpotential of 70 mV in 1.0 M KOH, superior to recently reported Pt-based electrocatalysts. This catalyst also provides excellent long-term electrochemical durability with its catalytic activity being maintained for at least 50 h.

This article is part of the themed collection: Nanoscale 10th Anniversary: Top Authors

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DOI: https://doi.org/10.1039/C8NR02071J
Article type: Communication
Submitted: 13 Mar 2018
Accepted: 07 Jun 2018
First published: 07 Jun 2018

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Nanoscale, 2018,10, 12302-12307

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An ultrafine platinum–cobalt alloy decorated cobalt nanowire array with superb activity toward alkaline hydrogen evolution

Z. Wang, X. Ren, Y. Luo, L. Wang, G. Cui, F. Xie, H. Wang, Y. Xie and X. Sun, Nanoscale, 2018, 10, 12302 DOI: 10.1039/C8NR02071J

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An ultrafine platinum–cobalt alloy decorated cobalt nanowire array with superb activity toward alkaline hydrogen evolution†

Abstract

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An ultrafine platinum–cobalt alloy decorated cobalt nanowire array with superb activity toward alkaline hydrogen evolution

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