Jump to main content
Jump to site search


NiCo2O4@Ni-Co-Ci core-shell nanowires array as an efficient electrocatalyst for water oxidation at near-neutral pH

Abstract

It is attractive but still remains challenging to develop efficient water oxidation electrocatalysts working in carbonate (Ci) electrolyte. In this communication, we report that Ni-Co-Ci layer can be developed on NiCo2O4 nanowires array supported on carbon cloth (NiCo2O4/CC) by electrochemical surface derivation of NiCo2O4. The resulting NiCo2O4@Ni-Co-Ci core-shell nanowires array on carbon cloth (NiCo2O4@Ni-Co-Ci/CC) exhibits high activity toward water oxidation in 1.0 M KHCO3 (K-Ci, pH = 8.3) with the overpotential requirement of 309 mV to drive 10 mA cm-2. NiCo2O4@Ni-Co-Ci/CC also shows long-term electrochemical stability for 20 h and a high turnover frequency of 0.464 s-1 at overpotential of 600 mV.

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Apr 2017, accepted on 24 May 2017 and first published on 24 May 2017


Article type: Communication
DOI: 10.1039/C7CC03146G
Citation: Chem. Commun., 2017, Accepted Manuscript
  •   Request permissions

    NiCo2O4@Ni-Co-Ci core-shell nanowires array as an efficient electrocatalyst for water oxidation at near-neutral pH

    R. Ge, M. Ma, X. Ren, F. Qu, Z. Liu, G. Du, A. M. Asiri, L. Chen, B. Zheng and X. Sun, Chem. Commun., 2017, Accepted Manuscript , DOI: 10.1039/C7CC03146G

Search articles by author

Spotlight

Advertisements