Influence of temperature schedules on particle size and crystallinity of titania synthesized by vapor-phase oxidation route
文献类型：期刊论文
| 作者 | Wang, Zhi; Yuan, Zhangfu; Zhou, E. |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2006-12-14 |
| 卷号 | 170期号:3页码:135-142 |
| 关键词 | titania titanium tetrachloride crystallinity particle size gas phase route |
| ISSN号 | 0032-5910 |
| 其他题名 | Powder Technol. |
| 中文摘要 | Crystalline TiO2 particles were produced in a tubular flow reactor by chemical vapor synthesis using titanium tetrachloride as a starting material in oxygen containing atmospheres. The dependence of particle size, morphology and crystalline phase of titania on temperature schedules including the reactor temperature, the oxygen preheated temperature and the product cooling measure were explored. It is found that there are two opposite effects of temperature on particle size and crystalline phase content. The particle size distribution, SEM and TEM of resulting powders show that the grain size is controlled by the relative magnitudes of the nucleation rate and growth rate, both of them being subject to the temperature schedules. XRD indicates that particles crystalline phase is predominately anatase and the rutile content increment is not consistent with temperature increase. Anatase titania can be converted to rutile by addition of crystal modifier AlCl3. The element analysis by EDS shows that Al enriches on the particle outer surface. (c) 2006 Elsevier B.V. All rights reserved. |
| 英文摘要 | Crystalline TiO2 particles were produced in a tubular flow reactor by chemical vapor synthesis using titanium tetrachloride as a starting material in oxygen containing atmospheres. The dependence of particle size, morphology and crystalline phase of titania on temperature schedules including the reactor temperature, the oxygen preheated temperature and the product cooling measure were explored. It is found that there are two opposite effects of temperature on particle size and crystalline phase content. The particle size distribution, SEM and TEM of resulting powders show that the grain size is controlled by the relative magnitudes of the nucleation rate and growth rate, both of them being subject to the temperature schedules. XRD indicates that particles crystalline phase is predominately anatase and the rutile content increment is not consistent with temperature increase. Anatase titania can be converted to rutile by addition of crystal modifier AlCl3. The element analysis by EDS shows that Al enriches on the particle outer surface. (c) 2006 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | TIO2 POWDER ; MORPHOLOGY ; CONDENSATION ; COAGULATION ; EVOLUTION ; TICL4 |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000243800600003 |
| 公开日期 | 2013-10-24 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3998]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhi,Yuan, Zhangfu,Zhou, E.. Influence of temperature schedules on particle size and crystallinity of titania synthesized by vapor-phase oxidation route[J]. POWDER TECHNOLOGY,2006,170(3):135-142. |
| APA | Wang, Zhi,Yuan, Zhangfu,&Zhou, E..(2006).Influence of temperature schedules on particle size and crystallinity of titania synthesized by vapor-phase oxidation route.POWDER TECHNOLOGY,170(3),135-142. |
| MLA | Wang, Zhi,et al."Influence of temperature schedules on particle size and crystallinity of titania synthesized by vapor-phase oxidation route".POWDER TECHNOLOGY 170.3(2006):135-142. |
入库方式： OAI收割
来源：过程工程研究所
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