Facile synthesis of α-MnO2 one-dimensional (1D) nanostructure and energy storage ability studies

► New nanostructures of MnO2 is synthesized by simple method of cathodicelectrodeposition. ► The product has unique one-dimensional morphology with average diameter size of 50 nm. ► The experiment conditions (temperature, current density) has not been reported. ► The one-nanostructures obtained without using of hard template or surfactant.