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Acetonitrile mediated facile synthesis and self-assembly of silver vanadate nanowires into 3D spongy-like structure as a cathode material for lithium ion battery

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Abstract

We report the facile, one-step acetonitrile-mediated synthesis and self-assembly of β-AgVO3 nanowires into three-dimensional (3D) porous spongy-like hydrogel (~ 4 cm diameter) as cathode material for lithium ion battery of high performance and long-term stability. 3D structures made with superlong, very thin, and monoclinic β-AgVO3 nanowires exhibit high specific discharge capacities of 165 mAh g−1 in the first cycle and 100 mAh g−1 at the 50th cycle, with a cyclic capacity retention of 53% at a current density of 50 mA g−1. 3D structures are synthesized by reaction between ammonium vanadate and silver nitrate solution containing 5 mL of acetonitrile followed by a hydrothermal treatment at 200 °C for 12 h. Acetonitrile (used here for the first time in the silver vanadate synthesis) plays an important role in the self-assembly of the silver vanadate nanowires. A tentative growth mechanism for the 3D structure and lithium ions intercalation into β-AgVO3 nanowires has been discussed and described.

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Acknowledgements

Authors D. P. Singh and J. C. Denardin acknowledge with gratitude the financial supports from CONICYT Fondeyt Regular 1151527 and CONICYT BASAL CEDENNA FB0807, Chile respectively. R. M. Yadav acknowledges the financial support from UGC India for Raman Fellowship. A. A. Marti acknowledges the Welch Foundation (grant C-1743) for financial support.

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Correspondence to D. P. Singh.

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This study was funded by CONICYT Chile (Fondeyt Regular 1151527), UGC India for (Raman Fellowship), and Welch Foundation (grant C-1743) USA.

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The authors declare that they have no conflict of interest.

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Supporting data available for XRD, SEM images and description of the as synthesized materials before putting in thefurnace (DOCX 1.10 mb)

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Klockner, W., Yadav, R.M., Yao, J. et al. Acetonitrile mediated facile synthesis and self-assembly of silver vanadate nanowires into 3D spongy-like structure as a cathode material for lithium ion battery. J Nanopart Res 19, 288 (2017). https://doi.org/10.1007/s11051-017-3983-7

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  • DOI: https://doi.org/10.1007/s11051-017-3983-7

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