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Ultrafine MnO₂ nanowires grown on RGO-coated carbon cloth as a binder-free and flexible supercapacitor electrode with high performance.

ABSTRACT: Reduced graphene oxide coated carbon cloth has been used as a substrate for the growth of ultrafine MnO₂ nanowires (CC/RGO/MnO₂), forming binder-free and flexible supercapacitor electrode materials. The experimental results indicate that a maximum area-specific capacitance of 506.8 mF cm^-2 was gained from the CC/RGO/MnO₂ electrode at the current density of 0.128 mA cm^-2. Furthermore, the electrode exhibits excellent cycling stability (98.6% specific capacitance was still retained after 10 000 galvanostatic charge-discharge (GCD) tests when the current density was 1.28 mA cm^-2). What's more, the area-specific capacitance of the CC/RGO/MnO₂ electrode was hardly changed, when the electrode was operated under bending mechanical conditions. In addition, the charge storage performance and mechanism of the MnO₂ nanostructures was discussed.

SUBMITTER: Xu Z

PROVIDER: S-EPMC9090648 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Ultrafine MnO2 nanowires grown on RGO-coated carbon cloth as a binder-free and flexible supercapacitor electrode with high performance.

Xu Zhihui Z Sun Shishuai S Cui Wen W Yu Dan D Jiachun Deng

RSC advances 20181116 67

Reduced graphene oxide coated carbon cloth has been used as a substrate for the growth of ultrafine MnO2 nanowires (CC/RGO/MnO2), forming binder-free and flexible supercapacitor electrode materials. The experimental results indicate that a maximum area-specific capacitance of 506.8 mF cm-2 was gained from the CC/RGO/MnO2 electrode at the current density of 0.128 mA cm-2. Furthermore, the electrode exhibits excellent cycling stability (98.6% ...[more]

PMID: 35559105

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