Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (11): 2107.

• Articles • Previous Articles     Next Articles

Preparation and Characterization of Novel Nanometer Materials V10O24·12H2O

SUN Juan-Ping, WU Guang-Ming*, ZHANG Ming-Xia, CUI Chao-Jun, YANG Hui-Yu, ZHANG Zhi-Hua, ZHOU Bin, SHEN Jun   

  1. Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092, China
  • Received:2008-12-10 Online:2009-11-10 Published:2009-11-10
  • Contact: WU Guang-Ming. E-mail: gmingwu@online.sh.cn
  • Supported by:

    国家自然科学基金(批准号: 50752001)、上海市科学技术科研计划项目(批准号: 07JC14052)、上海市重点实验室项目(批准号: 07DZ22302)和上海市教委科研创新项目(批准号: 08ZZ22)资助.

Abstract:

The novel mixed-valence vanadium oxide V10O24·12H2O nano-structure were prepared by Sol-Gel process with the industrial V2O5 powder as the starting materials and a simple peroxyde reaction route in this paper, and the formation mechanism has been clarified. XRD, TEM, TG-DSC, FTIR and XPS measurements were used to obtain structure and infrared vibration of the V10O24·12H2O. The analyses showed that the V10O24·12H2O have a nano-structure with porous, and the diameter about 40—60 nm. The infrared absorption properties were discussed based on the vibration model and the change of bond length before and after reaction. It has reveal that shift of the absorption peaks of the V10O24·12H2O was caused by the lattice expansion and formation of low valence vanadium ion in V10O24·12H2O. This mixed-valence vanadium oxide has a nanoporous structure which make it a potential candidate to be used as cathode in lithium-based batteries.

Key words: V10O24·12H2O nanopower; Crystal structure; Mixed valence; Infrared absorption; Sol-Gel

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