title: Tungsten carbide-nitride on graphene nanoplatelets as a durable hydrogen evolution electrocatalyst.
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.
authors: Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA). wfchen@bnl.gov.
authors: Wei-Fu
authors: WF
authors: Chen
authors: Jonathan M
authors: JM
authors: Schneider
authors: Kotaro
authors: K
authors: Sasaki
authors: Chiu-Hui
authors: CH
authors: Wang
authors: Jacob
authors: J
authors: Schneider
authors: Shilpa
authors: S
authors: Iyer
authors: Shweta
authors: S
authors: Iyer
authors: Yimei
authors: Y
authors: Zhu
authors: James T
authors: JT
authors: Muckerman
authors: Etsuko
authors: E
authors: Fujita
mesh_terms: D002384:Catalysis; D004563:Electrochemistry; D006108:Graphite / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry*; D017672:Nitrogen Compounds / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry*
chemical_list: D017672:Nitrogen Compounds; D017973:Tungsten Compounds; C002802:tungsten carbide; D006108:Graphite; D006859:Hydrogen
keywords: carbides; electrochemistry; graphene; hydrogen evolution; nitrides