| 微波辅热-甲醇还原法制备M相二氧化钒粉体 |
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| 引用本文： | 陈益超,颜文斌,石爱华,易静. 微波辅热-甲醇还原法制备M相二氧化钒粉体[J]. 材料科学与工艺, 2019, 27(3): 41-46 |
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| 作者姓名： | 陈益超 颜文斌 石爱华 易静 |
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| 作者单位： | 吉首大学化学化工学院,湖南吉首416000;湖南省锰锌产品质量监督检验中心,湖南吉首416000;吉首大学化学化工学院,湖南吉首416000;矿物清洁生产与绿色功能材料开发湖南省重点实验室,湖南吉首416000 |
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| 基金项目： | 国家自然科学基金资助项目(21566010)；吉首大学研究生项目(14JDY051)；湖南省高校科技创新团队支持计划资助. |
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| 摘 要： | 为获得具有良好相变特性的M相VO_2粉体,本文以V_2O_5为原料、甲醇作还原剂,采用微波辅热制备M相VO_2粉体.探讨了微波辅热功率、填充度、反应温度、反应时间、甲醇用量因素对制备VO_2的影响,采用X射线衍射(XRD)、差示扫描量热法(DSC)和扫描电子显微镜(SEM),对产物进行了物相、相变和形貌特征的表征.结果表明:在微波辅热功率为1 000 kW,填充度为0.7,反应温度为250℃时,反应时间为60 min,V_2O_5质量与甲醇体积比为5∶3时,得到B相的VO_2粉体;B相的VO_2再经过800℃高温热处理后完全转化为具有相变功能的M相,M相VO_2粉体纯度为99.20%,产率为92.30%,相变点温度为68.6℃,晶体形貌呈现较匀称的棒状结构,长度为1～2μm.
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| 关 键 词： | 微波辅热 甲醇还原法 制备 二氧化钒 粉体 |
| 收稿时间： | 2018-02-23 |
Preparation of M-phase vanadium dioxide powder by microwave assisted thermal reduction of methanol |
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| CHEN Yichao,YAN Wenbin,SHI Aihua and YI Jing. Preparation of M-phase vanadium dioxide powder by microwave assisted thermal reduction of methanol[J]. Materials Science and Technology, 2019, 27(3): 41-46 |
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| Authors: | CHEN Yichao YAN Wenbin SHI Aihua YI Jing |
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| Affiliation: | College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China ;Manganese and Zinc Product Quality Supervision and Inspection Center of Hunan Province, Jishou 416000, China,College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China ;Key Laboratory of Mineral Cleaner Production and Green Functional Materials in Hunan Province, Jishou 416000, China,College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China ;Key Laboratory of Mineral Cleaner Production and Green Functional Materials in Hunan Province, Jishou 416000, China and College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China ;Key Laboratory of Mineral Cleaner Production and Green Functional Materials in Hunan Province, Jishou 416000, China |
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| Abstract: | |
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| Keywords: | microwave assisted heating methanol reduction method preparation vanadium dioxide |
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