▎ 摘　　要

A facile hydrothermal method has been adopted to fabricate Sn-doped MoS2/graphene hybrids and their electrocatalytic properties toward hydrogen evolution reaction (HER) are also investigated. It is found that the incorporation of graphene and Sn-doping can efficiently suppress the stacking of MoS2 layers to form few-layer (1-3 layers) MoS2 nanosheets with rich active sites. Moreover, the few-layer Sn-MoS2 nanosheets are well implanted in the flexible and highly conductive graphene network. Such the desirable microstructures endow the hybrids with greatly enhanced HER performances including a smaller onset potential, larger exchange current density, smaller Tafel slope as well as higher turnover frequency than those of the bare MoS2. (C) 2016 Elsevier B.V. All rights reserved.