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24-06-2019 | Issue 14/2019

Journal of Materials Science: Materials in Electronics 14/2019

Facile synthesis of highly efficient V2O5@NiCo2O4 as battery-type electrode material for high-performance electrochemical supercapacitors

Journal:
Journal of Materials Science: Materials in Electronics > Issue 14/2019
Authors:
Tae-Yong Park, Chandu V. V. Muralee Gopi, Rajangam Vinodh, Hee-Je Kim
Important notes

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10854-019-01719-w) contains supplementary material, which is available to authorized users.
Chandu V. V. Muralee Gopi and Hee-Je Kim have contributed equally to this work.

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Abstract

Herein, we have designed and prepared the battery-type redox behavior enabled hybrid V2O5@NiCo2O4 heterostructures on nickel foam by a simple one-step chemical bath deposition method. The structural and compositional analyses confirmed the presence of V2O5 and NiCo2O4 in the as-prepared hybrid V2O5@NiCo2O4 composite. The electrochemical studies reveal that the V2O5@NiCo2O4 composite electrode exhibited a high specific capacity of 184.49 mA h g−1 at 1 A g−1 and excellent rate capability of 88.5% at 12 A g−1 with good cycling stability (94.3% capacity retention over 3000 cycles), which are superior to the NiCo2O4 electrode. The results demonstrate that the hybrid V2O5@NiCo2O4 composite have a wide range of applications in the energy storage field.

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Supplementary Material
Supplementary material 1 (DOCX 21 kb)
10854_2019_1719_MOESM1_ESM.docx
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