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Direct growth of Ni-Mn-O nanosheets on flexible electrospun carbon nanofibers for high performance supercapacitor applications

Abstract

Currently, the search for the fabrication of inexpensive and efficient binder-free electrodes for high performance supercapacitor applications is still a great challenge. In this work, different nanostructures of Ni-Mn oxide (Ni-Mn-O) are directly grown on the surface of flexible electrospun carbon nanofibers (ECNFs) and further used as binder-free electrodes for supercapacitor. Among three typical nanostructures, Ni-Mn-O nanosheets on ECNFs show a superior electrochemical property with a good specific capacitance (368.6 F g-1) and excellent rate property (88.6% retention at 20 times initial current density) in a three-electrode system. Further, an aqueous symmetry cell and a solid-state symmetry supercapacitor are assembled using two pieces of flexible ECNFs@Ni-Mn-O nanosheets. The maximum energy density and power density based on the solid-state supercapacitor are up to 20.2 Wh kg-1 and 4.9 kW kg-1, respectively, indicating the flexible ECNFs@Ni-Mn-O nanosheets present a fairly promising future for practical applications in energy storage field.

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Publication details

The article was received on 09 Nov 2017, accepted on 19 Dec 2017 and first published on 19 Dec 2017


Article type: Research Article
DOI: 10.1039/C7QI00696A
Citation: Inorg. Chem. Front., 2017, Accepted Manuscript
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    Direct growth of Ni-Mn-O nanosheets on flexible electrospun carbon nanofibers for high performance supercapacitor applications

    D. Tian, X. Lu, G. Nie, M. Gao and C. Wang, Inorg. Chem. Front., 2017, Accepted Manuscript , DOI: 10.1039/C7QI00696A

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