期刊
CHEMSUSCHEM
卷 7, 期 9, 页码 2414-2418出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402454
关键词
carbides; electrochemistry; graphene; hydrogen evolution; nitrides
资金
- U.S. Department of Energy (DOE) [DE-AC02-98CH10886]
- Division of Chemical Sciences, Geosciences and Biosciences, Office of Basic Energy Sciences
- BNL Technology Maturation Funding [TM 12-008]
- DOE Science Undergraduate Laboratory Internships Program
- Synchrotron Catalysis Consortium, US Department of Energy [DE-FG02-05ER15688]
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 nano-composite 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.
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