| Preparation and properties of nano-sized SnO2 powder |
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| 作者姓名： | 姚敏琪 卫英慧 胡兰青 许并社 |
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| 作者单位： | Department of Materials Science，Taiyuan University of Technology，Taiyuan 030024，China |
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| 摘 要： | 1 INTRODUCTIONSnO2isoneofthemainmaterialsusedingassensor.Becauseofthehumidityandgassensingfunction,itattractsmoreandmoreattentions.Butthepresentproblemishowtoimprovethestabilityandsensibilityofgassensor.Researchershavetakenmanymeasurestoresolvethisproble…
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| 关 键 词： | 纳米氧化锡粉末 性能 化学沉积法 颗粒尺寸 气体传感器 |
Preparation and properties of nano-sized SnO2 powder |
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| YAO Min-qi,WEI Ying-hui,HU Lan-qing,XU Bing-she.Preparation and properties of nano-sized SnO2 powder[J].Transactions of Nonferrous Metals Society of China,2002,12(5):833-836. |
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| Authors: | YAO Min-qi WEI Ying-hui HU Lan-qing XU Bing-she |
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| Abstract: | SnO2 powder was prepared by chemical precipitation method. Effects of starting materials concentration, pH value of final system and treating temperature on the particle size were investigated by means of X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The parameters of chemical precipitation were optimized. It is concluded that the concentration of starting material and pH value of final system has little effect on the SnO2 particle size, but heat treatment do greatly affect the particle size. If the treating temperature is lower than 500℃, the particle size has a good stability; otherwise, the particle size remarkably increases with increasing temperature. The dispersing agents have various influences on SnO2 powder as the polarity of dispersing agents changed. |
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| Keywords: | SnO 2 nano-sized chemical precipitation method particle size |
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