Facile synthesis of mesoporous Ni _x Co_9-x S₈ hollow spheres for high-performance supercapacitors and aqueous Ni/Co-Zn batteries.

ABSTRACT: Porous micro/nanostructure electrode materials have always contributed to outstanding electrochemical energy storage performances. Co₉S₈ is an ideal model electrode material with high theoretical specific capacity due to its intrinsic two crystallographic sites of cobalt ions. In order to improve the conductivity and specific capacitance of Co₉S₈, nickel ions were introduced to tune the electronic structure of Co₉S₈. The morphology design of the mesoporous hollow sphere structure guarantees cycle stability and ion diffusion. In this work, Ni _x Co_9-x S₈ mesoporous hollow spheres were synthesized via a facile partial ion-exchange of Co₉S₈ mesoporous ho

SUBMITTER: Zhang D 

PROVIDER: S-EPMC9280778 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature