Enhanced Hydrogen Evolution Activity and Lithium-Ion Storage of Three-Dimensional Porous MoS2 Hybridized with Graphene Aerogel

The molybdenum disulfide (MoS2) and the graphene aerogel (GA) were hybridized into a porous three-dimensional network composite (MoS2/GA). Due to its large specific surface area, good electrical conductivity and stable structure, MoS2/GA has higher discharge specific capacity and better rate performance than MoS2 and MoS2/GNRs as electrode materials. Moreover, MoS2/GA has better hydrogen evolution catalytic activity and durability. A porous three-dimensional network can be built in MoS2/GA composites. Hybridization gives MoS2 nanosheets wider interlayer spacing, fewer layers, larger BET surface area, and more active sites. It can be found that MoS2/GA(100:15) is the efficient HER electrocatalytic material and the energy storage material than MoS2 and MoS2/GNR due to the superior electrocatalytic activity and durability.