引用本文:
黎先财, 汪文娟, 杨沂凤, 饶国华. 仲钨酸铵水热法制备WO3及其表征[J]. 应用化学,
2005, 22(8): 883-886.
Citation: LI Xian-Cai, WANG Wen-Juan, YANG Yi-Feng, RAO Guo-Hua. Preparation and Characterization of WO3 from Ammonium Paratungstate via Hydrothermal Method[J]. Chinese Journal of Applied Chemistry, 2005, 22(8): 883-886.

Citation: LI Xian-Cai, WANG Wen-Juan, YANG Yi-Feng, RAO Guo-Hua. Preparation and Characterization of WO3 from Ammonium Paratungstate via Hydrothermal Method[J]. Chinese Journal of Applied Chemistry, 2005, 22(8): 883-886.

仲钨酸铵水热法制备WO3及其表征
English
Preparation and Characterization of WO3 from Ammonium Paratungstate via Hydrothermal Method
Abstract:
Tungsten trioxide powder has been prepared from ammonium paratungstate via hydrothermal method using orthogonal and mono-level design of experiments.The effect of the 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℃,followed by vacuum drying at 45℃ and calcination at 500℃ 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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Key words:
- ammonium paratungstate
- / orthogonal design
- / tungsten trioxide
- / hydrothermal
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