▎ 摘 要
The intensive growth of smart portable devices hastriggered a boom in the research of all-solid-stateflexible super-capacitors. However, the unsatisfactory mechanicalflexibility andlimited energy density still hinder their practical application. Herein, acombination hydrothermal-assisted assemble strategy is proposed todesign reduced graphene oxidefiber/MoS2nanosheet-assembledcomposite fabrics (rGOFF-MoS2), where the MoS2nanosheetsvertically grow on the surface of rGOfibers through C-O-Mocovalent bonds. The synthesized rGOFF-MoS2fabrics present aninter-linkage isotropy skeleton, a robust fusing node, an in situ verticalcovalent bridge, an adequate pseudocapacitive reactivity, and a largeelectrochemical active surface (80.1 m2/g), resulting in fast interlaminar conductivity, great ionic migration and adsorption, andoutstanding mechanical stability. The as-preparedflexible electrode displays a large capacitance of 330 F/g at 0.1 A/g (1330 mF/cm2at 1 mA/cm2) and a high stability (95% capacitance retention after 10,000 cycles) in the H2SO4electrolyte. Additionally, theassembled solid-stateflexible supercapacitor presents an energy density of 69.44 mu W h/cm2(0.5 mW/cm2) and an excellentmechanicalflexibility, making the rGOFF-MoS2fabric a highly competitive candidate for practical applications in next-generationwearable/smart electronics.