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  • Tungsten‐Doped Nanocrystalline V6O13 Nanoparticles as Low‐Cost and High‐Performance Electrodes for Energy Storage Devices

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    Author(s)
    Wang, Shujun
    Qin, Jiadong
    Zhang, Yubai
    Xia, Fang
    Liu, Minsu
    Chen, Hao
    Al-Mamun, Mohammad
    Liu, Porun
    Rigway, Regan
    Shi, Ge
    Song, Jingchao
    Zhong, Yu Lin
    Zhao, Huijun
    Griffith University Author(s)
    Zhao, Huijun
    Chen, Hao
    Al-Mamun, M
    Liu, Porun
    Zhong, Yulin
    Qin, Jiadong
    Shi, Ge
    Wang, Shujun
    Zhang, Yubai
    Rigway, Regan
    Year published
    2019
    Metadata
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    Abstract
    Vanadium oxide (VOx) nanomaterials are promising candidates for energy storage devices, such as lithium‐ and sodium‐ion batteries and supercapacitors, in which many complicated structural designs and composite strategies are applied to harness the high theoretical capacity of these materials. Herein, a simple yet effective method to achieve improved performance of electrodes via tungsten doping in a green hydrothermal reaction is demonstrated. The evolution of three VOx phases (V2O5, VO2, and V6O13) during the synthesis of the VOx nanostructures is revealed by the systematic investigation of the reaction products. The dopants ...
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    Vanadium oxide (VOx) nanomaterials are promising candidates for energy storage devices, such as lithium‐ and sodium‐ion batteries and supercapacitors, in which many complicated structural designs and composite strategies are applied to harness the high theoretical capacity of these materials. Herein, a simple yet effective method to achieve improved performance of electrodes via tungsten doping in a green hydrothermal reaction is demonstrated. The evolution of three VOx phases (V2O5, VO2, and V6O13) during the synthesis of the VOx nanostructures is revealed by the systematic investigation of the reaction products. The dopants are critical for the formation of nanocrystalline structures. The as‐fabricated VOx is tested for lithium‐ion batteries, which shows that tungsten doping significantly improves the battery performance, including initial discharge capacity of the VOx (doped VOx = 615.2 ± 41.6 mAh g–1, undoped VOx = 377.9 ± 72.8 mAh g–1, and precursor V2O5 = 393.4 ± 74.0 mAh g–1), cycle stability, and rate performance. This research provides important insights into the understanding of the dopant‐induced phase tuning of VOx nanostructures for energy storage–related applications.
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    Journal Title
    Energy Technology
    Volume
    7
    Issue
    8
    DOI
    https://doi.org/10.1002/ente.201801041
    Copyright Statement
    © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Tungsten‐Doped Nanocrystalline V6O13 Nanoparticles as Low‐Cost and High‐Performance Electrodes for Energy Storage Devices, Energy Technology, Volume 7, Issue 8, Special Issue: 3rd International Symposium on Renewable Energy Technologies, which has been published in final form at 10.1002/ente.201801041. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)
    Subject
    Electrical and Electronic Engineering
    Chemical Engineering
    Materials Engineering
    Publication URI
    http://hdl.handle.net/10072/386606
    Collection
    • Journal articles

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