In situ self-assembly of Ni₃S₂/MnS/CuS/reduced graphene composite on nickel foam for high power supercapacitors.

ABSTRACT: Transition metal sulfides (TMS), as promising electroactive materials for asymmetric supercapacitors, have been limited due to their relatively poor conductivity and cycle stability. Here ternary Ni₃S₂/MnS/CuS composites were assembled in situ on nickel foam (NF) using a hydrothermal method via electrostatic adsorption of Ni⁺, Mn²⁺ and Cu²⁺ ions on a reduced graphene (rGO) nanosheet template. The chemical structure was characterized by various analytic methods. Ni₃S₂/MnS/CuS has spherical morphology assembled from closely packed nanosheets, while Ni₃S₂/MnS/CuS@rGO has a three-dimensional porous spherical structure with much lower diameter because rGO nanosheets can play the role

SUBMITTER: Li W 

PROVIDER: S-EPMC9072588 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature