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Issue 55, 2015
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Design and synthesis of 3D hierarchical NiCo2S4@MnO2 core–shell nanosheet arrays for high-performance pseudocapacitors

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Abstract

We report on the development of 3D hierarchical NiCo2S4@MnO2 core–shell nanosheet arrays on Ni foam for supercapacitors. In our design, the highly conductive NiCo2S4 nanosheets can serve not only as a good pseudocapacitive material, which can be contributed to the capacitance of the whole electrode, but also as a 3D conductive scaffold for loading MnO2 materials, which can overcome the limited conductivity of MnO2 itself. Furthermore, the 3D NiCo2S4@MnO2 hybrid electrode can provide efficient and rapid pathways for ion and electron transport. These merits together with the elegant synergy between NiCo2S4 and MnO2 lead to a high areal capacitance of 2.6 F cm−2 at 3 mA cm−2 and good cyclic stability.

Graphical abstract: Design and synthesis of 3D hierarchical NiCo2S4@MnO2 core–shell nanosheet arrays for high-performance pseudocapacitors

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Publication details

The article was received on 29 Mar 2015, accepted on 11 May 2015 and first published on 11 May 2015


Article type: Paper
DOI: 10.1039/C5RA05554G
Citation: RSC Adv., 2015,5, 44642-44647

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    Design and synthesis of 3D hierarchical NiCo2S4@MnO2 core–shell nanosheet arrays for high-performance pseudocapacitors

    K. Xu, Q. Ren, Q. Liu, W. Li, R. Zou and J. Hu, RSC Adv., 2015, 5, 44642
    DOI: 10.1039/C5RA05554G

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