The flexible all-solid-state supercapacitors based on faidherbia albida fruit shell derived activated carbon and MnO2/faidherbia albida fruit shell derived carbon as electrodes and PVA-KOH gel as electrolyte is synthesized. MnO2 nanowire-like structure is grafted on the faidherbia albida fruit shell-derived activated carbon via a hydrothermal synthesis method. The microstructures of the as-prepared materials are characterized by scanning electron microscopy, nitrogen adsorption/desorption isotherms, X-ray diffraction, Raman spectra and X-ray photoelectron spectroscopy techniques. Due to the sy...
