Fabrication of Vanadium Sesquioxide Powder by Hydrolysis Method

Tong Junfeng; Zhao Hongyu; Li Zhengxin

doi:10.7513/j.issn.1004-7638.2014.03.003

Volume 35 Issue 3

Jun. 2014

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Tong Junfeng, Zhao Hongyu, Li Zhengxin. Fabrication of Vanadium Sesquioxide Powder by Hydrolysis Method[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(3): 10-13. doi: 10.7513/j.issn.1004-7638.2014.03.003

Citation:

Tong Junfeng, Zhao Hongyu, Li Zhengxin. Fabrication of Vanadium Sesquioxide Powder by Hydrolysis Method[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(3): 10-13. doi: 10.7513/j.issn.1004-7638.2014.03.003

Tong Junfeng, Zhao Hongyu, Li Zhengxin. Fabrication of Vanadium Sesquioxide Powder by Hydrolysis Method[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(3): 10-13. doi: 10.7513/j.issn.1004-7638.2014.03.003

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Fabrication of Vanadium Sesquioxide Powder by Hydrolysis Method

doi: 10.7513/j.issn.1004-7638.2014.03.003

School of Materials Science and Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China

Received Date: 2014-03-04

Abstract

Abstract

V₂O₃ powder was prepared by hydrolyzing VOSO₄ without adding reducing agent.The effects of atmosphere and temperature on the sintering behavior were studied.The products were analyzed by X-ray diffraction(XRD),scanning electron microscope(SEM) and laser particle size analyzer.The results show that different products are obtained with 5℃/min heating rate in different atmospheres from room temperature to 800℃ and with insulation for 3 h.The product is V₄O₇ powder in argon atmosphere with flow rate of 160 mL/min,while the V₂O₃ powder is obtained in vacuum,with average diameter of 452 nm after being grinded in agate mortar for 20 min.The optimum pH for vanadium hydroxide by hydrolyzing VOSO₄ is approximately 4.
- VOSO₄,
- hydrolysis method,
- vanadium sesquioxide