In this study, the supercapacitor performance of the hydrothermal synthesized molybdenum disulfide (MoS2) nanosheets and the cetyltrimethylammonium bromide (CTAB)-assisted MoS2 nanoflower morphology have been investigated. The as-synthesized MoS2 nanoflower and nanosheet morphology structures were investigated via field emission scanning electron microscopy (FESEM), and the internal microstructure was examined via high resolution-transmission electron microscopy (HR-TEM) technique. The Fourier transform infrared (FT-IR) spectra were obtained to identify the chemical interaction and the functional groups present in the material. The shifting of the binding energy, oxidation states, and elemental identification were conducted by X-ray photon spectroscopy (XPS). The MoS2 nanoflower possesses surface defects, which produce numerous active sites. The MoS2 nanoflower and nanosheet electrodes demonstrate the high specific capacitance (C sp) values of 516 F g-1 and 438 F g-1, respectively, at a current density of 1 A g-1. However, the MoS2 nanoflower shows high C sp due to the large surface area with active edges, making them store more energy in the electrode.
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