Electrocatalytic activity of some carburised nickel, tungsten and molybdenum compounds

Electrocatalysis by nanocrystalline tungsten carbides and the effects of codeposited silver

“…Burstein). oxidation catalysis [7] and methanol electrocatalysis [8][9][10]. Sputtered nickel tantalum carbide has shown electrocatalytic activity as both an anode and cathode [11].…”

Synthesis of high surface area and well crystallized mesoporous WC at low temperature with a pore structure collapsed replication route

“…Among them, tungsten carbide has a unique and important advantage, i e, extraordinarily high resistance to very strong catalytic poisoning, such as by carbon monoxide, hydrocarbons and hydrogen sulfide [1,2] . Since tungsten carbides were found platinum-like behavior [3] and high resistance to CO poisoning [4,5] , they have been specially concerned to be used as an alternative electrocatalyst for Pt. There are mainly two kinds of tungsten carbides: WC and W 2 C. The early studies showed that W 2 C was electrochemically unstable in acid condition while WC was stable under certain anode potentials [6] .…”

Characterization and performances of cobalt–tungsten and molybdenum–tungsten carbides as anode catalyst for PEFC

“…Studies on electrocatalysts have then evolved to the investigation of bimetals to promote bifunctional catalytic properties [7]. Some studies showed that the activity of nickel-molybdenum carbides (NiMoC) in the hydrogen oxidation reaction (HOR) was due to the alloying of the carburized Ni and Mo [8][9][10][11]. The study on molybdenum-tungsten carbide (MoWC) revealed that increase in the catalytic performance was dependant on the catalyst dispersion on carbon and activation * Corresponding author.…”