Jump to main content
Jump to site search

Issue 21, 2017
Previous Article Next Article

A nanostructured nickel–cobalt alloy with an oxide layer for an efficient oxygen evolution reaction

Author affiliations

Abstract

A nanostructured nickel–cobalt alloy with an oxide layer was fabricated and its superior catalytic activity towards the electrochemical oxygen evolution reaction in alkaline media was investigated. Firstly, a NiCo–SiO2 composite film was prepared via a potentiostatic electro-codeposition method. Then the SiO2 template was etched and the NiCo component was activated leading to the generation of a NiCoOx layer during consecutive CV scans in concentrated alkaline solution. The results show that this nanostructured NiCo alloy with the oxide layer can provide a current density of 100 mA cm−2 in 1.0 M KOH at a low overpotential of 326 mV and exhibits good stability towards water oxidation. The excellent OER performance is enabled with the unique metal-oxide structure, which allows high electrical conductivity in the metal and high catalytic activity on the oxide.

Graphical abstract: A nanostructured nickel–cobalt alloy with an oxide layer for an efficient oxygen evolution reaction

Back to tab navigation

Supplementary files

Publication details

The article was received on 30 Mar 2017, accepted on 26 Apr 2017 and first published on 26 Apr 2017


Article type: Paper
DOI: 10.1039/C7TA02754K
Citation: J. Mater. Chem. A, 2017,5, 10669-10677
  •   Request permissions

    A nanostructured nickel–cobalt alloy with an oxide layer for an efficient oxygen evolution reaction

    L. Wu, W. Wu, J. Xia, H. Cao, G. Hou, Y. Tang and G. Zheng, J. Mater. Chem. A, 2017, 5, 10669
    DOI: 10.1039/C7TA02754K

Search articles by author

Spotlight

Advertisements