High throughput synthesis of defect-rich MoS nanosheets via facile electrochemical exfoliation for fast high-performance lithium storage.

A facile and cost-effective method to prepare defect-rich MoS nanosheets is developed via an electrochemical exfoliation process. By using bucket-like metallic titanium mesh both as inert anode and container for MoS powders, defect-rich thin MoS nanosheets can be fast exfoliated from the bulk powders in aqueous sodium sulfate electrolyte under positive potentials. The as-obtained MoS nanosheets exhibit excellent cycling capability, high specific capacity, and superior rate performance for lithium storage. Furthermore, it provides a novel and effective method to exfoliate insulative or semiconductive layer-structured bulk powders into defect-rich 2D nanosheets.