| 预混火焰中喷雾热分解制备纳米氧化钇 |
| |
| 引用本文： | 冯君,范益群,徐南平.预混火焰中喷雾热分解制备纳米氧化钇[J].南京工业大学学报(自然科学版),2006,28(4):1-4. |
| |
| 作者姓名： | 冯君 范益群 徐南平 |
| |
| 作者单位： | 南京工业大学,化学化工学院,江苏,南京,210009 |
| |
| 基金项目： | 国家研究发展基金;江苏省教育厅资助项目 |
| |
| 摘 要： | 以硝酸钇的水溶液为前驱体，在甲烷和空气的预混火焰中喷雾热分解制备得到了结晶度高、具有较大比表面积的纳米氧化钇粉体。考察了反应过程中形成火焰的混合气体流量比咖以及雾化气体流量对生成的氧化钇晶型和比表面积的影响。研究表明，随着混合气体流量比咖的增加，得到的氧化钇粉体的比表面积在西为0．48附近出现了一个最大值32m^2／g；雾化气体流量对氧化钇粉体的比表面积的影响不大，不同雾化气流量下制备得到的氧化钇粉体的比表面积为30～33m^2／g。
|
| 关 键 词： | 预混火焰 喷雾热分解 纳米粉体 氧化钇 |
| 文章编号： | 1671-7643(2006)04-0001-04 |
| 收稿时间： | 2005-12-28 |
| 修稿时间： | 2005年12月28 |
Preparation of Y2O3 nano-powders through spray polysis in a premixed flame |
| |
| FENG Jun,FAN Yi-qun,XU Nan-ping.Preparation of Y2O3 nano-powders through spray polysis in a premixed flame[J].Journal of Nanjing University of Technology,2006,28(4):1-4. |
| |
| Authors: | FENG Jun FAN Yi-qun XU Nan-ping |
| |
| Institution: | College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China |
| |
| Abstract: | Nanosized Y2O3 with large specific surface area has been prepared in premixed flame with assisted spray pyrolysis. The influences of the gas flow rate ratio of premixed flame and the flow rate of the carrier gas on the properties of prepared Y2O3 with nanosize were studied. Experiments results show that the specific surface area of nanosized Y2O3 reaches a maximum 32 m^2/g when the gas flow rate ratio is about 0. 48. And the flow rate of the carrier gas has a minor influence on the surface area of yttria powders, which fluctuates between 30 m^2/g and 33 m^2/g. |
| |
| Keywords: | premixd flame spray pyrolysis nanometer particles Y2O3 |
| 本文献已被 维普 万方数据 等数据库收录！ |
