Tailoring the Interfacial Interactions of van der Waals 1T-MoS₂/C₆₀ Heterostructures for High-Performance Hydrogen Evolution Reaction Electrocatalysis

Abstract

Fullerene-based low-dimensional (LD) heterostructures have emerged as excellent energy conversion materials. We constructed van der Waals 1T-MoS₂/C₆₀ 0D-2D heterostructures via a one-pot synthetic approach for catalytic hydrogen generation. The interfacial 1T-MoS₂-C₆₀ and C₆₀-C₆₀ interactions as well as their electrocatalytic properties were finely controlled by varying the weight percentages of the fullerenes. 1T-MoS₂ platforms provided a novel template for the formation of C₆₀ nanosheets (NSs) within a very narrow fullerene concentration range. The heterostructure domains of 1T-MoS₂ and C₆₀ NSs exhibited excellent hydrogen evolution reaction (HER) performances, with one of the lowest onset potentials and Δ<i>G</i>_H* values for LD non-precious nanomaterials reported to date.