Abstract
AbstractBy introducing a graphene oxide (GO) sheet as a phase stabilizer and a mechanical supporter, MoS2/GO hybrid films consisting of a high concentration of distorted 1T‐MoS2 are successfully fabricated through a post‐annealing process in air with the form of a restacked film. After the annealing process, the MoS2 nanosheets undergo direct binding with the oxygen functional groups of GO, maintaining their highly conducting 1T phase and leading to distorted 1T‐MoS2 or 1T′‐MoS2. A hybrid film‐based supercapacitor reveals significantly enhanced electrochemical properties, such as an ultrahigh volumetric power density (≈207 W cm−3), high volumetric capacitance (≈380 F cm−3 at 10 mV s−1), superior rate capability, and a semi‐permanent cycle life (95 % retention after 10 000 cycles) in an aqueous electrolyte.
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