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Preparation of Nano-Sized Tin Oxide Powder by Spray Pyrolysis Process  

Yu, Jae-Keun (Department of Advanced Materials Engineering, Hoseo University)
Cha, Kwang-Yong (Department of Advanced Materials Engineering, Hoseo University)
Kim, Myung-Choun (Department of Advanced Materials Engineering, Hoseo University)
Han, Joung-Su (Department of Advanced Materials Engineering, Hoseo University)
Jang, Jae-Bum (Regional Innovation Center, Hoseo University)
Lee, Yong-Hwa (Regional Innovation Center, Hoseo University)
Kim, Dong-Hee (College of Medicine, Dankook University)
Publication Information
Resources Recycling / v.17, no.6, 2008 , pp. 79-88 More about this Journal
Abstract
This study is the previous stage for the mass production technology development of the nano-sized tin oxide powder by the recycling of the wasted tin metal, and nano-sized tin oxide powder with the average particle size below 50 nm is prepared from the tin chloride solution by the spray pyrolysis process. As the reaction temperature increases from 800 to 850, the average particle size of the generated powder increases from 20 to 30 nm. As the reaction temperature increases to 900, the droplet type is composed of the particles with the average size of the 30 nm. while the average size of the independent particles increases up to $80{\sim}100$ nm and the surface microstructure becomes more solid. Until $900^{\circ}C$, as the reaction temperature increases, the XRD peak intensity increases, while the specific surface area decreases. When the reaction temperature increases to 950, most of the powder appears with the independent type and the average particle size decrease down to 70 nm. The XRD peak intensity greatly decreases and the specific surface area increases almost twice.
Keywords
tin chloride solution; spray pyrolysis process; nano-sized tin oxide powder; reaction temperature; average particle size;
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