WC as a non-platinum hydrogen evolution electrocatalyst for high temperature PEM water electrolysers |
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| Authors: | A.V. Nikiforov I.M. Petrushina E. Christensen N.V. Alexeev A.V. Samokhin N.J. Bjerrum |
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| Affiliation: | 1. Department of Energy Conversion and Storage, Technical University of Denmark, Kemitorvet 207, DK-2800 Kgs. Lyngby, Denmark;2. Laboratory of Plasma Metallurgy, Baikov Institute of Metallurgy and Material Science, Russian Academy of Science, 119991 Moscow, Leninskiy Av. 49, Russian Federation |
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| Abstract: | 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. |
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| Keywords: | Hydrogen evolution reaction HER electrocatalyst PEM water electrolyser Non-platinum electrocatalyst WC |
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