Format

Send to

Choose Destination
See comment in PubMed Commons below
ChemSusChem. 2014 Sep;7(9):2414-8. doi: 10.1002/cssc.201402454. Epub 2014 Jul 24.

Tungsten carbide-nitride on graphene nanoplatelets as a durable hydrogen evolution electrocatalyst.

Author information

1
Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA). wfchen@bnl.gov.

Abstract

Alternatives to platinum-based catalysts are required to sustainably produce hydrogen from water at low overpotentials. Progress has been made in utilizing tungsten carbide-based catalysts, however, their performance is currently limited by the density and reactivity of active sites, and insufficient stability in acidic electrolytes. We report highly active graphene nanoplatelet-supported tungsten carbide-nitride nanocomposites prepared via an in situ solid-state approach. This nanocomposite catalyzes the hydrogen evolution reaction with very low overpotential and is stable operating for at least 300 h in harsh acidic conditions. The synthetic approach offers a great advantage in terms of structural control and kinetics improvement.

KEYWORDS:

carbides; electrochemistry; graphene; hydrogen evolution; nitrides

PMID:
25059477
DOI:
10.1002/cssc.201402454
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center