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One-step synthesis of V2O5/Ni3S2 nanoflakes for high electrochemical performance

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Abstract

In this work, we, for the first time, have designed and fabricated V2O5/Ni3S2 nanoflakes on a nickel foam substrate by a simple one-step hydrothermal method. The as-prepared V2O5/Ni3S2 nanoflake active electrode exhibited high-performance lithium-ion storage and superior supercapacitor properties. As an anode material for lithium-ion batteries, the V2O5/Ni3S2 nanoflakes exhibited a discharge capacity of 435 mA h g−1 in the 600th cycle, demonstrating their excellent cycling and rate performances. As an electrode material for electrochemical supercapacitors, it presented an areal capacitance of 4.2 F cm−2 at a current density of 5 mA cm−2. Theoretical analysis reveals that the diffusion-controlled storage process is dominant in the total capacitance, attributed to the p–n V2O5/Ni3S2 heterojunctions. The results illustrate that the V2O5/Ni3S2 nanoflakes have a wide range of potential applications in the energy storage field.

Graphical abstract: One-step synthesis of V2O5/Ni3S2 nanoflakes for high electrochemical performance

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Publication details

The article was received on 04 Sep 2017, accepted on 17 Oct 2017 and first published on 17 Oct 2017


Article type: Paper
DOI: 10.1039/C7TA07767J
Citation: J. Mater. Chem. A, 2017, Advance Article
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    One-step synthesis of V2O5/Ni3S2 nanoflakes for high electrochemical performance

    X. Wang, B. Shi, X. Wang, J. Gao, C. Zhang, Z. Yang and H. Xie, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA07767J

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