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Electrochemical exploration of the effects of calcination temperature of a mesoporous zinc vanadate anode material on the performance of Na-ion batteries

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Abstract

Nowadays, transition metal oxides are being rapidly developed for application as Na-ion storage anode materials, which provide a relatively high theoretical capacity compared to the graphitic anode; however, the evaluation of enhanced electrochemical performance of SIBs via various approaches, such as coating or doping, is an ongoing process. Hence, in this study, a mesoporus ZnV2O4 anode material with a spinel structure was successfully synthesized via a solvothermal technique followed by calcination at different temperatures; moreover, the impact of the calcination temperature on the Na-ion storage performance of this anode material was thoroughly investigated for the first time. The initial discharge capacities of 178, 251, and 296 mA h g−1 were obtained for the cacination temperatures of 500, 600, and 700 °C, respectively; after 250 cycles, the ZVO-700 electrode retained the discharge capacity of 166 mA h g−1 at 200 mA g−1 with the high coulombic efficiency of 99%. Furthermore, ZVO-500 and ZVO-600 retained 55 mA h g−1 and 99 mA h g−1 with a ∼27% and ∼42% retention rate, respectively. The electrochemical Na-ion storage performance is predicted by the conversion reaction of ZnV2O4. Moreover, the ZVO-700 sample showed higher surface area and pore volume, which led to remarkable electrochemical performance, than the ZVO-500 and ZVO-600 samples.

Graphical abstract: Electrochemical exploration of the effects of calcination temperature of a mesoporous zinc vanadate anode material on the performance of Na-ion batteries

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Publication details

The article was received on 02 May 2019, accepted on 13 Jun 2019 and first published on 18 Jun 2019


Article type: Research Article
DOI: 10.1039/C9QI00494G
Inorg. Chem. Front., 2019, Advance Article

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    Electrochemical exploration of the effects of calcination temperature of a mesoporous zinc vanadate anode material on the performance of Na-ion batteries

    R. Muruganantham, I. V. B. Maggay, L. M. Z. D. Juan, M. T. Nguyen, T. Yonezawa, C. Lin, Y. Lin and W. Liu, Inorg. Chem. Front., 2019, Advance Article , DOI: 10.1039/C9QI00494G

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