Structure-controlled tungsten carbide nanoplates for enhanced hydrogen evolution reaction

Nano-tungsten carbide decorated graphene as co-catalysts for enhanced hydrogen evolution on molybdenum disulfide.

A novel electrocatalyst of layered MoS2 supported on reduced graphene oxide (RGO) decorated with nano-sized tungsten carbide (WC) shows an enhanced catalytic performance in the hydrogen evolution reaction, which could be attributed to the presence of a conductive and electrocatalytically-active nano-WC dispersant and the positive synergistic effect between nano-WC/RGO and layered MoS2.

Study on Nanostructured Molybdenum Carbide for Hydrogen Evolution Reaction

Interactions between hydrogen and tungsten carbide: a first principles study

Tungsten carbide has been proposed to be a potential inexpensive alternative to platinum for catalyzing hydrogenation reactions. Using density functional theory (DFT) calculations, we performed a systematic study on the geometries and electronic structures of small (WC)n (n 1⁄4 1–10) clusters. A cubic-like growth of WC clusters was found to be the preferred pathway. The interactions between the...

Carbon-hydrogen bond activation over tungsten carbide catalysts

Tungsten carbides with surface areas ranging from 4 to 39 m2/g were prepared by the temperatureprogrammed carburization of tungsten oxide and nitride powders with pure C H 4 o r a 48.9% CH4 in H 2 mixture. Oxygen uptakes on the carbides were low most likely because of the presence of graphitic carbon at the surface. Nevertheless, the carbides were active and selective for the dehydrogenation of...

Electrochemically Synthesized Nanoporous Molybdenum Carbide as a Durable Electrocatalyst for Hydrogen Evolution Reaction

Demands for sustainable production of hydrogen are rapidly increasing because of environmental considerations for fossil fuel consumption and development of fuel cell technologies. Thus, the development of high-performance and economical catalysts has been extensively investigated. In this study, a nanoporous Mo carbide electrode is prepared using a top-down electrochemical process and it is ap...