Enhanced Electrocatalytic Performance of P-Doped MoS2/rGO Composites for Hydrogen Evolution Reactions

Abstract

This study is based on the strategies of composite and element doping. Herein, P-MoS2/rGO materials were synthesized using a solvent-assisted hydrothermal method. The MoS2 nanosheets were uniformly and vertically grown on rGO; meanwhile, the optimized structure of MoS2 was achieved by P doping, resulting in improved catalytic performance and structural stability. Under alkaline conditions, the P-MoS2/rGO catalyst exhibits good electrocatalytic activity, demonstrating a Tafel slope of 70.7 mV dec−1 and an overpotential of 172.8 mV at 10 mA/cm2. Notably, even after 3000 consecutive LSV tests, the curves still show a high degree of overlap, indicating exceptional stability.