Synthesis of V2O5 Powders by EDTA Assistance Ultrasound Sol-Gel Process


Article Preview

V2O5 powders were successfully synthesized by the EDTA assistanced ultrasound sol-gel process using NH4VO3 and EDTA, NH3•H2O as raw materials. The synthesized activation energy and the influence of pH values and the calcination temperatures on the phases and microstructures of powders were particularly investigated. The precursor powders and the V2O5 powders were characterized by X-ray diffraction (XRD), fourier transform inelectron microscopy (FT-IR), scanning electron microscopy (SEM) and differential scanning calorimetry-thermal gravimetric (DSC-TG). Results show that the obtained products exhibit good crystallization under the conditions of pH=4, calcination temperature 400~500 °C and calcination time 0.5 h during the synthesizing process. The as-prepared V2O5 powders show preferred growth orientation along (001) plane at the pH=4. By DSC analysis, the ultrasonic cavitation result in the decrease in synthesized activation energy obviously than that was prepared without ultrasonic irradiation.



Key Engineering Materials (Volumes 512-515)

Edited by:

Wei Pan and Jianghong Gong




Q. Wen et al., "Synthesis of V2O5 Powders by EDTA Assistance Ultrasound Sol-Gel Process", Key Engineering Materials, Vols. 512-515, pp. 207-210, 2012

Online since:

June 2012




[1] S.H. Lee, H.M. Cheong, M.J. Seong, et al, Raman spectroscopic studies of amorphous vanadium oxide thin films, Solid State Ionics. 165 (2003) 111-116.


[2] S. Beke, S. Giorgio, W. Marine, et al, Structural and optical properties of pulsed laser deposited V2O5 thin films, Thin Solid Films. 516 (2008) 4659-4664.


[3] J. Livage, Sol-gel chemistry and electrochemical properties of vanadium oxide gels, Solid State Ionics. 86-88 (1996) 935-942.


[4] J.F. Huang, Sol-gel Principle and Technology, first ed., Beijing, China, (2005).

[5] Y.Q. Zhai, Z.H. Yao, S.W. Ding, et al, Preparation of nanocrystal Y2O3 : Eu by the EDTA complexing sol-gel method, Chin. J. Inorganic Mater. 18 (2003) 339-444.

[6] H. Wang, R.Y. Luo, Y.Q. Yang, Thermodynamics and kinetics about prolysis of a carbon matrix compound, Chin. J. Mater. Res. 15 (2001) 159-165.

[7] S.J. He, J. Ha, Y.M. Wang, et al, Applications of sonochemistry in preparing nanosized materials, Chin. J. Chem. Online. 11 (2008) 846-850.