Jump to main content
Jump to site search

Issue 32, 2017
Previous Article Next Article

Cobalt/molybdenum carbide@N-doped carbon as a bifunctional electrocatalyst for hydrogen and oxygen evolution reactions

Author affiliations

Abstract

The development of cost-effective and highly active electrocatalysts for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) for overall water splitting is still a big challenge. Herein, we design and construct a composite architecture that is composed of nitrogen-doped carbon encapsulating cobalt and molybdenum carbide nanoparticles (CoxMoy@NC). Benefiting from synergistic cooperation between each component, the CoxMoy@NC presents excellent performance towards both HER and OER catalysis in alkaline medium. The optimized electrocatalyst is found to be Co4Mo2@NC, which only requires relatively low overpotentials of ∼0.218 V and ∼0.33 V to produce a current density of 10 mA cm−2 for the electrocatalytic HER and OER, respectively. Such performance compares favorably to those of most previously reported Co, Mo-based electrocatalysts for water splitting. The present finding would enrich our knowledge to design and develop catalytically active molybdenum carbide-based electrocatalysts for overall water splitting.

Graphical abstract: Cobalt/molybdenum carbide@N-doped carbon as a bifunctional electrocatalyst for hydrogen and oxygen evolution reactions

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Jun 2017, accepted on 12 Jul 2017 and first published on 12 Jul 2017


Article type: Paper
DOI: 10.1039/C7TA04893A
Citation: J. Mater. Chem. A, 2017,5, 16929-16935
  •   Request permissions

    Cobalt/molybdenum carbide@N-doped carbon as a bifunctional electrocatalyst for hydrogen and oxygen evolution reactions

    J. Jiang, Q. Liu, C. Zeng and L. Ai, J. Mater. Chem. A, 2017, 5, 16929
    DOI: 10.1039/C7TA04893A

Search articles by author

Spotlight

Advertisements