Facile synthesis of core-shell NiSe@α-Ni(OH)2 as battery-type electrode for high-performance hybrid supercapacitor

In this study, core-shell [email protected]α-Ni(OH)2 with NiSe nanorod wrapped in α-Ni(OH)2 nanosheet is successfully prepared on Ni-foam via a facile two-step hydrothermal synthesis. Ni-foam takes the roles of the conductive substrate and source of Ni during the synthesis of NiSe. Thus the strong adhesive force between the as-prepared NiSe and Ni-foam is formed, making the nanorod become a bridge to facilitate electron transfer and a skeleton...