Hydrothermal synthesis of selenium-doped graphene-like molybdenum disulfide/graphene hybrid as an efficient electrocatalyst for hydrogen evolution

•Se-doped MoS2/graphene hybrid is prepared by an IL-assisted hydrothermal route.•The MoS2 nanosheets in hybrids possess single-layered and edge-rich features.•The hybrid demonstrates a much larger current density than that of bare MoS2.

Se-doped graphene-like MoS2/graphene hybrid (Se-GL-MoS2/G) has been synthesized by an ionic liquid-assisted hydrothermal method and is also evaluated as an electrochemical catalyst for hydrogen evolution reaction (HER). The results indicate that Se-doped MoS2 nanosheets are characteristic of monolayers with rich exposed active edges and are well dispersed in the highly conductive graphene networks. Consequently, the desirable microstructures endow the Se-GL-MoS2/G hybrid with significantly enhanced catalytic activity for HER compared with the bare MoS2.

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