Excellent performance supercapacitors with the compounding of Ni(OH)₂ and ZIF-67 derived Co-C-N nanosheets as flexible electrode materials.

ABSTRACT: Owing to the advantages of high theoretical capacity, low cost, and excellent chemical stability, Ni(OH)₂ is considered as a potential candidate for electrode materials of supercapacitors. However, its further applications are limited by its adverse surface chemical properties. In this paper, a composite material consisting of ZIF-67 derived Co-C-N nanosheets and Ni(OH)₂ was synthesized facilely on carbon cloth in situ, and based on the collective advantages of the various components, excellent electrochemical performance could be achieved when used as a flexible electrode material of supercapacitors. In detail, the as-obtained sample Ni(OH)₂/Co-C-N/CC exhibits an ultrahigh specific capacitance of 2100 F g^-1 at a current density of 1 A g

SUBMITTER: Li D 

PROVIDER: S-EPMC9552899 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature