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电化学沉积制备V_2O_5薄膜电极的表面结构及储钠性能
Authors
姚金环
姜吉琼
+4 more
张灵志
李世玉
李延伟
谢志平
Publication date
1 January 2016
Publisher
Abstract
以含有CTAB的V2O5溶胶为电解液,采用电沉积法在不锈钢基体上沉积V2O5薄膜前体,经300℃烧结处理后制备了无黏结剂和导电剂的V2O5纳米薄膜电极。XRD测试表明该方法制备的V2O5薄膜是含水相的V2O5·n H2O,与未添加CTAB制备的薄膜相比,其层间距明显变大。FESEM和AFM测试发现CTAB辅助电沉积制备的V2O5薄膜具有粗糙多孔的表面形貌;XPS测试表明CTAB辅助电沉积制备的V2O5薄膜中含有更多的低价钒离子(V4+)。电化学测试发现该方法制备的V2O5薄膜具有优异的嵌/脱Na+循环稳定性;与未添加CTAB制备的薄膜相比,CTAB辅助电沉积制备的V2O5薄膜具有更好的电化学反应可逆性、更强Na+扩散性能和更高的储钠比容量,是一种非常有应用前景的钠离子电池正极材料
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Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
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oai:ir.giec.ac.cn:344007/19058
Last time updated on 05/12/2019
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/19056
Last time updated on 05/12/2019
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/30333
Last time updated on 04/12/2021