Electrochemical Behavior and Magnetic Properties of Vanadium Oxide Nanotubes

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• 作者：Andreia I. Popa ; Evgenia Vavilova ; Christine Ta虉schner ; Vladislav Kataev ; Bernd Bu虉chner ; Ru虉diger Klingeler
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：April 7, 2011
• 年：2011
• 卷：115
• 期：13
• 页码：5265-5270
• 全文大小：857K
• 年卷期：v.115,no.13(April 7, 2011)
• ISSN：1932-7455

文摘

The electrochemical behavior and magnetic properties of electrochemically lithium-doped mixed valence vanadium oxide nanotubes (VOx-NTs) have been studied. The materials were synthesized hydrothermally. Primary amines (CH₃鈭?CH₂)₁₁鈭扤H₂) were used as spacer molecules aiding to retain the nanotubular shape of the VOx layers. Cyclic voltammograms and potentiostatic measurements indicate that the electrochemical behavior of this material is fairly sensitive to the preparation conditions. Specific capacity values for this material are higher than similar template VOx-NTs. Lithium doping level of x = 0.1 in two different VOx-NTs gives rise to room-temperature ferromagnetism in Li_xVOx-NTs.