Graphene/acid coassisted synthesis of ultrathin MoS2 nanosheets with outstanding rate capability for a lithium battery anode

摘要

Morphology-controlled MoS_2 nanosheets were successfully synthesized with the aid of graphene/acid coexistence by a one-pot hydrothermal method. The ultrathin MoS_2 nanosheets were self-assembled into a cockscomb-like structure with an exposed (100) facet on graphene sheets, which is in strong contrast to large aggregate MoS_2 plates grown freely on graphene sheets without acetic acid. The ultrathin MoS_2 nanosheets displayed excellent rate performance for Li storage (709 mAh·g ~(-1) capacity at 8320 mA·g~(-1) discharging rate) and superior charge/discharge cyclability.