纳米SnO2微粉的制备与性能

摘要/Abstract

摘要： SnO₂作为一种功能基体材料,在气敏、湿敏、光学技术等方面已有广泛的应用.

Abstract: Ultra-fine SnO₂ powder with mean size of 2～3 nm was prepared by a sol-gel process.The structure and properties of the powder were studied.It is found that the tetragonal tin dioxide formed essentially during the gel drying at 70℃,and further crystallized on heating at 240～330℃,which was much lower than the temperature reported for the powder prepared with other method.The temperature dependent curue of conductivity for the thick film gas sensors made of this ultrafine powders showed a peak at 130℃,which was obviously lower than that reported in literature.The gas sensing layer of the element exhibited good strength and good resistivity stability as well as high sensitivity to H₂ and C₂H₂ gases.

Key words: nanometer-sized powder, SnO₂, sol-gel process, gas sensing property

刘杏芹, 陶善文, 沈瑜生. 纳米SnO₂微粉的制备与性能[J]. 应用化学, 1996, 0(1): 65-67.

Liu Xingqin, Tao Shanwen, Shen Yusheng. Preparation and Properties of Nanometer-Sized SnO₂ Powder[J]. Chinese Journal of Applied Chemistry, 1996, 0(1): 65-67.

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纳米SnO₂微粉的制备与性能

Preparation and Properties of Nanometer-Sized SnO₂ Powder

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