Infrared Spectrums Research of Nanocrystalline Antimony-Doped Tin oxide Prepared via Chemical Coprecipitation Method
Antimony-doped tin oxide (ATO) powder is desirable for use in gas or humidity sensors,catalytic agent and transparent conductive paints. In the article, the infrared spectrums (IR) character of ATO and its precursor prepared via a kind of novel chemical coprecipitation method were studied. The results show that a crystallographic rearrangement happens in the precipitated phase during calcination and a small quantity of doped tin will not change the structure of SnO2. Besides, the obvious widenth and wavelength shift of Sn-O character vibration peak are found in IR patterns of ATO when the compound additives were mixed with the precursor during calcination. In the reaction, compound additives afford oxygen and prompt the oxidation of Sb3+ to Sb5+ and the rapid substitution of Sb5+ for Sn4+ in tin dioxide, on the other hand, a great deal of gases released by decomposing the compound additives inhibit the growth and aggregation of the particles during calcination.
Min Zheng Bao Wang Shasha Sun
College of Material Engineering, Suzhou University, Suzhou, Postal code 215021
国际会议
北京
英文
2007-08-05（万方平台首次上网日期，不代表论文的发表时间）