Hierarchical double-shelled poly(3,4-ethylenedioxythiophene) and MnO2 decorated Ni nanotube arrays for durable and enhanced energy storage in supercapacitors

Hierarchical double-shelled PEDOT@MnO2@Ni nanotube arrays electrode is prepared by the successive electrodeposition method to boost its capacitance and cyclic stability in supercapacitors.151