Jump to main content
Jump to site search


A hierarchical CoMoO4 nanoparticle decorated nanoplate array as an electrocatalyst toward improved alkaline oxygen evolution reaction

Author affiliations

Abstract

Highly efficient noble metal-free water oxidation electrocatalysts play a key role in water splitting devices for large-scale hydrogen production. In this communication, we report the surface engineering of a CoMoO4 nanoplate array on nickel foam (CoMoO4 NPAs/NF) by CoMoO4 nanoparticle decoration. The hierarchical structure of the as-formed CoMoO4 NP@PAs/NF (CoMoO4 nanoparticle coated nanoplate array on Ni foam) guarantees the exposure of more catalytically active sites with a much larger electrochemically active surface area, leading to improved catalytic activity for the oxygen evolution reaction (OER) in alkaline media. In 1 M KOH, it needs a low overpotential of 317 mV to attain 100 mA cm−2, 72 mV less than that for CoMoO4 NPAs/NF. Moreover, this system is also durable with a twice higher turnover frequency (TOF) value of 0.41 s−1 at 400 mV overpotential compared with CoMoO4 NPAs/NF.

Graphical abstract: A hierarchical CoMoO4 nanoparticle decorated nanoplate array as an electrocatalyst toward improved alkaline oxygen evolution reaction

Back to tab navigation

Supplementary files

Article information


Submitted
19 Nov 2019
Accepted
09 Jan 2020
First published
14 Jan 2020

Sustainable Energy Fuels, 2020, Advance Article
Article type
Communication

A hierarchical CoMoO4 nanoparticle decorated nanoplate array as an electrocatalyst toward improved alkaline oxygen evolution reaction

X. Guan, L. Yang, G. Zhu, H. Wen, J. Zhang, X. Sun, H. Feng, W. Tian, X. Chen and Y. Yao, Sustainable Energy Fuels, 2020, Advance Article , DOI: 10.1039/C9SE01122F

Social activity

Search articles by author

Spotlight

Advertisements