Direct Growth of Birnessite-Type MnO₂on Activated Carbon Cloth for a Flexible Supercapacitor

Bilayered microelectrodes based on electrochemically deposited MnO2/polypyrrole towards fast charge transport kinetics for micro-supercapacitors

“…19 Manganese dioxide (MnO 2 ) has been explored as an electrochemically active transition metal oxide with high theoretical specic capacitance (1370 F g À1 ), low cost and environmental friendliness. 20,21 Although, its practical applications with high power density are limited due to its poor electrical conductivity ($10 À7 S cm À1 ) at room temperature. 22,23 Various composites based on MnO 2 have been developed to yield high electrochemical performance.…”