Doubling of electrochemical parameters via the pre-intercalation of Na+ in layered MnO2 nanoflakes compared to α-MnO2 nanorods†
Abstract
The pre-intercalation of Na+ ions in layered birnessite-MnO2 is shown to have a dramatic influence on its electrochemical properties. Electrochemical studies showed the doubling of the specific capacitance and energy density in the layered Na–MnO2 nanoflakes compared to the MnO2 nanorods.