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Performance enhancement of asymmetric supercapacitors with bud-like Cu-doped Mn₃O₄ hollow and porous structures on nickel foam as positive electrodes.

ABSTRACT: Cu-doped Mn₃O₄ hollow nanostructures supported on Ni foams as high-performance electrode materials for supercapacitors were successfully synthesized through a facile hydrothermal method and subsequent calcination. The morphology, structure, and electrochemical performance of the as-prepared Mn₃O₄ nanostructures can be tuned just by varying the Cu doping content. Benefiting from the unique bud-like hollow structure, the 1.5 at% Cu-doped Mn₃O₄ sample has a high specific capacitance of 257.6 F g^-1 at 1 A g^-1 and remarkable stability (about 90.6% retention of its initial capacitance after 6000 electrochemical cycles). Besides, an asymmetric supercapacitor (ASC) cell based on the 1.5 at% Cu-doped Mn₃

SUBMITTER: Chen X

PROVIDER: S-EPMC9088714 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Performance enhancement of asymmetric supercapacitors with bud-like Cu-doped Mn₃O₄ hollow and porous structures on nickel foam as positive electrodes.

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Performance enhancement of asymmetric supercapacitors with bud-like Cu-doped Mn3O4 hollow and porous structures on nickel foam as positive electrodes.

OmicsDI is part of the ELIXIR infrastructure

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Performance enhancement of asymmetric supercapacitors with bud-like Cu-doped Mn₃O₄ hollow and porous structures on nickel foam as positive electrodes.