CNT/VS2-MoS2 with multi-interface structure for improved hydrogen evolution reaction

Abstract

CNT/VS₂-MoS₂ with a multi-interface structure shows significantly enhanced catalytic activity compared with MoS₂, CNT/MoS₂, CNT/VS₂ and VS₂-MoS₂, including a low overpotential of −215 mV at 10 mA cm⁻² and a small Tafel slope of 64 mV dec⁻¹. The enhanced catalytic activity could be ascribed to the multiple interfaces in CNT/VS₂-MoS₂, which can promote charge transfer and yield abundant active sites. This study provides a valuable route to improve the catalytic performance of two-dimensional electrocatalysts.