Facile synthesis of CoS porous nanoflake for high performance supercapacitor electrode materials

CoS porous nanoflake was easily synthesized via a facile biomembrane support system at room temperature. Due to its unique structure and the character of the material itself, the obtained CoS nanomaterial as electrode shows a wonderful electrochemical performance, including high specific capacitance (366 F g(-1) at 1 A g(-1)), excellent electrochemical stability (92% capacitance retention from 1 A g(-1) up to 10 A g(-1)) and cycle stability (95% capacitance retention over 1300 cycles).