One-step construction of Fe0.5Mo0.5Se2 with P doping on carbon cloth for efficient hydrogen evolution in acidic and alkaline media

The exploring of transition metal-based selenides (TMSes) as the efficient electrocatalysts in acidic and alkaline media has received extensive for a wide range of practical applications. We combine the advantages of self-supporting electrode, P doping and synergistic effect between bimetallic materials to synthesize P-doped Fe0.5Mo0.5Se2 grown on carbon cloth (P-Fe0.5Mo0.5Se2/CC), which displays high hydrogen evolution reaction (HER) catalytic property in both electrolytes. The P-Fe0.5Mo0.5Se2/CC catalyst with proportion-optimized shows good performance. Specifically, it has low overpotentials of 102 and 179 mV at current density of 10 mA cm-2 and small Tafel slope values of 54 and 80 mV dec-1 in 0.5 M H2SO4 and 1 M KOH media, respectively. This work offers the simple way and perspective worth to investigate the design of efficient electrocatalyst in both solutions. (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.