| Popis: |
By 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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