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[1]徐慢*,赵静,王树林,等.热解氧钒碱式碳酸铵法M型二氧化钒粉体的制备[J].武汉工程大学学报,2014,(06):20-25.[doi:103969/jissn16742869201406005]
　XU Man,ZHAO Jing,WANG Shu lin,et al.Preparation of Mvanadium dioxide powder by thermolysis of ammonium oxovanadium carbonate hydroxide[J].Journal of Wuhan Institute of Technology,2014,(06):20-25.[doi:103969/jissn16742869201406005]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年06期
页码:
20-25
栏目:
材料科学与工程
出版日期:
2014-06-30

文章信息/Info

Title:
Preparation of Mvanadium dioxide powder by thermolysis of ammonium oxovanadium carbonate hydroxide
文章编号:
16742869(2014)06002005
作者:
徐慢1*; 赵静1; 王树林1; 祝云1; 王桂荣2; 关岭2
1.武汉工程大学材料科学与工程学院，湖北 武汉 430074；2.武汉长利玻璃有限公司，湖北 武汉 430074
Author(s):
XU Man1; ZHAO Jing1; WANG Shulin1; ZHU Yun1; WANG Guirong2; GUAN Lin2
1.School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430074,China;2.Wuhan Changli Glass Co.,Ltd.,Wuhan 430074,China
关键词:
氧钒碱式碳酸铵; 热分解; 二氧化钒
Keywords:
ammonium oxovanadium carbonate hydroxide; thermal decomposition; vanadium dioxide
分类号:
TQ135.1+1
DOI:
103969/jissn16742869201406005
文献标志码:
A
摘要:
以五氧化二钒、浓盐酸、水合肼和碳酸氢铵为原料，合成氧矾碱式碳酸铵前驱体，并通过控制退火温度在氮气气氛下热处理前驱体制备M型二氧化钒粉体.采用X射线衍射、差热分析、扫描电子显微镜等方法对样品成分、相变温度和晶体形貌进行了分析.结果显示：当升温速率和保温时间一定时，不同的热处理温度和气氛对粉体的晶型和成分有重要影响；不同的热处理温度热解氧钒碱式碳酸铵,保温30 min能得到不同价态的氧化钒粉体；当500 ℃温度热处理30 min时，可以得到纯的M型二氧化钒粉体.有序结构的理论晶粒尺寸为20～40 nm，实际颗粒尺寸在1 μm左右,粉体相变温度为66 ℃；通过热处理氧钒碱式碳酸铵前驱体可以制备M型二氧化钒粉体，工艺简单、条件容易控制.
Abstract:
The precursor of ammonium oxovanadium carbonate hydroxide was synthesized using vanadium pentoxide,hydrochloric acid,hydrazine hydrate and ammonium bicarbonate,then it was annealed in the atmosphere of nitrogen to prepare vanadium dioxide (M) powder when the temperature was controlled.Xray diffraction,differential thermal analysis and scanning electron microscope were employed to characterize the component,phase transition temperature and crystal morphology of the powder.The results show that the change of annealing temperature and atmosphere has a great influence on the crystal structure and component of the powder when the heating rate and holding time is constant;different oxidation state of vanadium can be obtained when the precursor is annealed for 30 min at different temperatures in the atmosphere of nitrogen;the pure vanadium dioxide (M) powder is obtained after the precursor annealed for 30 min at 500 ℃;the theoretical grain size of orderly structure is between 20 nm and 40 nm while actual particle size is about 1 μm，phase transition temperature of the powder is 66 ℃；The process of preparing vanadium dioxide (M) powder by annealing ammonium oxovanadium carbonate hydroxide is simple and easily controlled.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20140310基金项目：湖北省自然科学基金（2013CFB319）；武汉市科技攻关项目（2013010501010138）；研究生创新基金项目（CX2013087）作者简介：徐慢（1964），男，湖北浠水人，研究员，博士研究生导师.研究方向：节能新材料、环保新材料的开发.*通信联系人.
更新日期/Last Update: 2014-07-29