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篇目详细内容 |
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【篇名】 |
Preparation and characterization of WO3 from ammonium paratungstate via hydrothermal method |
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【刊名】 |
Frontiers of Chemistry in China |
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【刊名缩写】 |
Front. Chem. China |
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【ISSN】 |
1673-3495 |
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【EISSN】 |
1673-3614 |
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【DOI】 |
10.1007/s11458-006-0057-2 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2006 |
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【卷期】 |
1
卷4期 |
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【页码】 |
389-392
页,共
4
页 |
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【作者】 |
Li Xiancai;
Cao Xiaohua;
Wang Wenjuan;
Yang Yifeng;
Rao Guohua;
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【关键词】 |
ammonium paratungstate; orthogonal design; tungsten trioxide; hydrothermal |
【摘要】 |
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Tungsten trioxide powder has been prepared from ammonium paratungstate via hydrothermal method using orthogonal and mono-level design of experiments. The effects of preparation process on particle size, specific surface area, crystal form and crystalline morphology of the tungsten trioxide was investigated by TEM and XRD etc. It was found that the optimum conditions of the preparation are hydrothermal crystallization for 8 h at 180°C, followed by vacuum drying at 45°C and calcination at 500°C for 2 h. The blank reference experiment shows that hydrothermal crystallization treatment favors the formation of hexagonal tungsten trioxide, and the tungsten trioxide powder sample prepared by this method has a high degree of crystallinity. |
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