One-step hydrothermal synthesis of a CoS2@MoS2 nanocomposite for high-performance supercapacitors

A MoS 2 -coated CoS 2 composite has been prepared successfully via a one-step hydrothermal method . This CoS 2 @MoS 2 hybrid material has a distinct morphology with few-layer MoS 2 wrapping the CoS 2 nanoparticles . Serving as a supercapacitor electrode, the obtained CoS 2 @MoS 2 hybrid material exhibits a remarkable specific capacitance of 1038 F/g, a high rate capability of 71.7%, and excellent cycling stability of 84.76% retention after 10000 cycles. The superior electrochemical properties of the CoS 2 @MoS 2 nanocomposite are attributed to the synergistic effects between the layered MoS 2 and conductive CoS 2 .