One Step Synthesis of Ni/Ni(OH)(2) Nano Sheets (nss) and Their Application in Asymmetric Supercapacitors

Ni/Ni(OH)2 NSs were prepared by a facile hydrothermal method using EtOH as reducing agent. Asymmetric device is fabricated using AC and Ni/Ni(OH)2 NSs as electrodes, with optimized specific capacitance of 62 F g−1 and a maximum energy density of 23.45 W h kg−1.