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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：化学工艺. 功能材料化学与化工. 无机化学
办公地点：西部校区化工综合楼A403
联系方式：0411-84986065
电子邮箱：ninggl@dlut.edu.cn
Synthesis, characterization, and thermodynamic parameters of vanadium dioxide
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论文类型：期刊论文
发表时间：2008-08-01
发表刊物：MATERIALS RESEARCH BULLETIN
收录刊物：SCIE、EI
卷号：43
期号：8-9
页面范围：2300-2307
ISSN号：0025-5408
关键字：oxides; chemical synthesis; differential scanning calorimetry (DSC); X-ray diffraction; microstructure
摘要：A novel process was developed for synthesizing pure thermochromic vanadium dioxide (VO2) by thermal reduction of vanadium pentoxide (V2O5) in ammonia gas. The process of thermal reduction of V2O5 was optimized by both experiments and modeling of thermodynamic parameters. The product VO2 was characterized by means of X-ray diffraction (XRD), X-ray photoelectron spectrometry (XPS), scanning electron microscopy (SEM), thermogravimetric analysis (TG), and differential scanning calorimetry (DSC). The experimental results indicated that pure thermochromic VO2 crystal particles were successfully synthesized. The phase transition temperature of the VO2 is approximately 342.6 K and the enthalpy of phase transition is 44.90 J/g. (c) 2007 Elsevier Ltd. All rights reserved.
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