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- W4323074920 abstract "This paper presents a method or preparing a composite with morphology and phase conversion appropriate for use in a supercapacitor. Manganese dioxide (MnO2) nanoflakes composed of MnO2 nanorods (α and γ phases) with protonated g-C3N4 (g-CN), were prepared via a hydrothermal method. As synthesized composite showed district morphology and phase conversion of MnO2. The composite was thoroughly evaluated by field emission electron microscopy (FESEM), transmission electron microscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). Based on characterizations, morphology and phase conversion phenomenon of MnO2 in g-CN/MnO2 composite is suggested and discussed. The electrochemical performance of the composite was assessed by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS) and compared to the performance of bare g-CN and MnO2 nanoflakes in alkaline electrolyte solution. The composite showed more specific capacitance (148.66 F/g) at 0.5 A/g than the pristine form of its components. An asymmetric supercapacitor ([email protected]2//PCNFs), assembled through a [email protected]2 composite and with porous carbon nanofibers (PCNFs), achieved an energy density of 1.6 Wh/Kg and a power density of 84 W/kg. This study suggests a new avenue for the development of MnO2 based composites use as energy storage materials." @default.
- W4323074920 created "2023-03-05" @default.
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- W4323074920 date "2023-06-01" @default.
- W4323074920 modified "2023-10-14" @default.
- W4323074920 title "The morphology and phase conversion of MnO2 in g-CN@MnO2 composite with supercapacitor applications" @default.
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- W4323074920 doi "https://doi.org/10.1016/j.jpcs.2023.111310" @default.
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