PdP<sub>2</sub> Nanoparticles on Reduced Graphene Oxide: A Catalyst for the Electrocatalytic Reduction of Nitrate to Ammonia
journal contribution
posted on 2023-04-19, 14:38 authored by Guohui Wang, Ying Zhang, Kai Chen, Yali Guo, Ke ChuPalladium phosphides are explored as efficient catalysts
for the
electrocatalytic reduction of nitrate to ammonia (NRA). The explored
PdP<sub>2</sub> nanoparticles on reduced graphene oxide exhibit the
maximum NH<sub>3</sub> Faradaic efficiency of 98.2% with a corresponding
NH<sub>3</sub> yield rate of 7.6 mg h<sup>–1</sup> cm<sup>–2</sup> at −0.6 V (RHE). Theoretical calculations reveal that a PdP<sub>2</sub> (011) surface can not only effectively activate and hydrogenate
NO<sub>3</sub><sup>–</sup> via a NOH pathway but also retard
H adsorption to inhibit the competitive hydrogen evolution reaction.
