Three-dimensional MoS2/rGO foams as efficient sulfur hosts for high-performance lithium-sulfur batteries

•Well-combined MoS2/rGO composites are prepared via a facile hydrothermal method.•MoS2 with mixed 1T & 2H phases are grown on the basal plane of rGO.•The MoS2/rGO exhibits a sponge-like porous 3-D network.•The MoS2/rGO has large surface area and enhanced polysulfide chemisorption.•The MoS2/rGO/S cathode show enhanced performance of the Li-S batteries.