期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 109, 期 8, 页码 3085-3088出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp044286w
关键词
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Nanotube arrays of amorphous vanadium pentoxide (V2O5) were synthesized via template-based electrodeposition, and its electrochemical properties were investigated for Li-ion intercalation applications. The nanotubes have a length of 10 mum, outer diameter of 200 nm and inner diameter of 100 nm. Electrochemical analyses demonstrate that the V2O5 nanotube array delivers a high initial capacity of 300 mAh/g, about twice that of the electrochemically prepared V2O5 film. Although the V2O5 nanotube array shows a more drastic degradation than the film under electrochemical redox cycles, the nanotube array reaches a stabilized capacity of 160 mAh/g, which remains about 1.3 times the stabilized capacity of the film.
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