One-dimensional CoS2–MoS2 nano-flakes decorated MoO2 sub-micro-wires for synergistically enhanced hydrogen evolution

Yang Wang; Yinlong Zhu; Sepideh Afshar; Meng Wai Woo; Jing Tang; Timothy Williams; Biao Kong; Dongyuan Zhao; Huanting Wang; Cordelia Selomulya

doi:10.1039/C8NR08418A

One-dimensional CoS₂–MoS₂ nano-flakes decorated MoO₂ sub-micro-wires for synergistically enhanced hydrogen evolution†

Yang Wang,‡^a Yinlong Zhu,

‡^a Sepideh Afshar,^a Meng Wai Woo,^a Jing Tang,

^b Timothy Williams,

^c Biao Kong,

^d Dongyuan Zhao,*^ad Huanting Wang

*^a and Cordelia Selomulya*^a

Author affiliations

* Corresponding authors

^a Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
E-mail: cordelia.selomulya@monash.edu, huanting.wang@monash.edu

^b Department of Materials Science and Engineering, Stanford University, Stanford, California, USA

^c Monash Centre for Electron Microscopy (MCEM), Monash University, Clayton, Victoria 3800, Australia

^d Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
E-mail: dyzhao@fudan.edu.cn

Abstract

CoS₂–MoS₂ nanoflakes decorated MoO₂ (CoMoOS) hybrid submicro-wires with rich active interfaces were synthesized via the sulfuration of CoMoO₄. They showed excellent activity while synergistically catalyzing the hydrogen evolultion reaction (HER) in basic media by promoting both the water dissociation and hydrogen absorption steps. Thus, the CoMoOS catalysts only needed 123 mV to achieve 10 mA cm⁻² with a small Tafel slope in alkaline solutions, and required 1.68 V to obtain the same current density when assembled into an alkaline electrolyser.

Nanoscale

One-dimensional CoS₂–MoS₂ nano-flakes decorated MoO₂ sub-micro-wires for synergistically enhanced hydrogen evolution†

Abstract

Supplementary files

Article information

Download Citation

Permissions

One-dimensional CoS₂–MoS₂ nano-flakes decorated MoO₂ sub-micro-wires for synergistically enhanced hydrogen evolution

Social activity

Search articles by author

Spotlight

Advertisements

Nanoscale