| 制备方法对SnO2超微粉气敏性的影响 |
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| 引用本文： | 刘勇 沈瑜生. 制备方法对SnO2超微粉气敏性的影响[J]. 中国科学技术大学学报, 1994, 24(2): 225-229 |
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| 作者姓名： | 刘勇 沈瑜生 |
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| 摘 要： | 本文采用透射电镜（ＴＥＭ），光电子能谱（ＸＰＳ）等手段，对溶液沉淀法和低温等离子体法制备的ＳｎＯ２超微粉的微结构进行了分析比较．通过计算得到了它们的表面氧吸附活化能值，说明不同的制备方法对粉料的活性有很大影响，从而影响用这种粉料制备的气敏元件的气敏特性．
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| 关 键 词： | 溶液沉淀法，低温等离子体，表面活性，气敏特性 |
The Influences of Preparation Methods on Gas Sensitivities of the SnO_2 Ultrafine Powder |
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| Liu Yong,Shen Yusheng,Sun Tong,Fen Yundao. The Influences of Preparation Methods on Gas Sensitivities of the SnO_2 Ultrafine Powder[J]. Journal of University of Science and Technology of China, 1994, 24(2): 225-229 |
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| Authors: | Liu Yong Shen Yusheng Sun Tong Fen Yundao |
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| Affiliation: | Department of Materials Science and Engineering |
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| Abstract: | TEM. XPS analyses are used to compare the differences of microstructures of the SnO2nanometer powder prepared by different methods:"precipitation from solution" and "low temperatureplasma extend CVD". Surface oxide adsorption energy daal are calculated. These results confirm theconclution that different preparations of the SnO2 nanometer powder affect itS adsorption activities.There fore, the gas sensor elements fabricated by these two nanometer powders apparently vary intheir gas sensitivities. |
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| Keywords: | precipitation PECVD surface adsorption energy gas sensitivity. |
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