Tungsten carbide (WC) nanopowder was tested as a non-platinum cathode electrocatalyst for polymer electrolyte membrane (PEM) water electrolysers, operating at elevated temperatures. It was prepared in thermal plasma reactor with confined plasma jet from WO3 precursor in combination with CH4 carburizing agent. The results of the investigation showed that the activity of tungsten carbide as cathode electrocatalyst increases significantly with temperature and this effect is more pronounced than for platinum, especially, at 150 °C.
International Journal of Hydrogen Energy, 2012, Vol 37, Issue 24, p. 18591-18597
Hydrogen evolution reaction; HER electrocatalyst; PEM water electrolyser; Non-platinum electrocatalyst; WC