文献类型：期刊文献

英文题名：Production and characterization of nanocrystalline SnO₂ films on Al₂O₃ agglomerates by CVD in a fluidized bed

作者：Hua, B; Li, CZ

机构：[1]Shanghai Univ, Coll Chem & Chem Engn, Shanghai 200072, Peoples R China;[2]E China Univ Sci & Technol, Inst Tech Chem Phys, Shanghai 200072, Peoples R China

年份：1999

卷号：59

期号：2

起止页码：130

外文期刊名：MATERIALS CHEMISTRY AND PHYSICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000080714500006)】；

语种：英文

外文关键词：chemical vapor deposition; fluidization; ultrafine particle

摘要：In this paper, nanocrystalline SnO2 films an coated on ultrafine Al2O3 particles by hydrolyzing SnCl4 vapor using fluidization chemical vapor deposition (FCVD) technology. The morphology and distribution of SnO2 films in Al2O3 agglomerates as well as on ultrafine Al2O3 particles are determined by means of X-ray diffraction (XRD), EPMA, high resolution electron microscopy (HREM) etc. The results show that nanocrystalline SnO2 films are deposited uniformly throughout the whole agglomerate if Al2O3 agglomerates are fluidized and the films are made up of both amorphous SnO2 and 6-10 nm crystallites on the surfaces of ultrafine Al2O3 particles under different coating conditions. FCVD can be developed into a competitive method for surface modification of ultrafine particles. (C) 1999 Published by Elsevier Science S.A. All rights reserved.