The effect of acidity of electrolyte on the porosity and the nanostructure morphology of electrolytic manganese dioxide

► Electrolytic manganese dioxides are electrodeposited from a MnSO4 solution at fixed pH (2, 3, 4, 5, and 6) and unfixed pH. ► The nanostructure morphology and porosity (hysteresis behavior and specific surface area) of the samples have been studied. ► The acidity of electrolyte (pH) has strong influence on the characteristic of Electrolytic manganese dioxides.