| 纳米二氧化硅粉体的微乳液制备及表征 |
| |
| 引用本文： | 骆锋,阮建明,万千. 纳米二氧化硅粉体的微乳液制备及表征[J]. 粉末冶金材料科学与工程, 2004, 9(2): 93-98 |
| |
| 作者姓名： | 骆锋 阮建明 万千 |
| |
| 作者单位： | 中南大学,粉末冶金国家重点实验室,湖南,长沙,410083 |
| |
| 基金项目： | 国家"863"高技术计划资助项目(2001AA218011) |
| |
| 摘 要： | 以硅酸盐溶液／环已烷／聚乙二醇辛基苯基醚／正戊醇体系的微乳液反应为基础,以浓硫酸为 沉淀剂,采用微乳液法制备了高比表面积纳米SiO2粉体,并通过比表面积(BET),透射电镜 (TEM),红外光谱分析(IR),X射线衍射(XRD),差热一热重分析(DTA-TG)对样品进行了形态表 征和物相分析。研究结果表明:采用微乳液法制备的纳米SiO2粉末均由非晶态物质组成,粉体颗 粒形貌近似呈球形,粒径为15-35nm,比表面积达580-630 m2／g。
|
| 关 键 词： | 微乳液 SiO2 纳米粉末 高比表面积 |
| 修稿时间： | 2003-06-18 |
Preparation and characterization of nano-sized SiO2 particles by microemulsion method |
| |
| LUO Feng,RUAN Jian-ming,Wan Qian. Preparation and characterization of nano-sized SiO2 particles by microemulsion method[J]. materials science and engineering of powder metallurgy, 2004, 9(2): 93-98 |
| |
| Authors: | LUO Feng RUAN Jian-ming Wan Qian |
| |
| Abstract: | High specific surface area nano-sized SiO2 particles were prepared by microemulsion reaction method using the microemulsion system of silicate solution, cyclohexane, OP-10, and n-pentanol, concentrated sulfuric acid was used into the microemulsion as precipitant. The powders were characterized with BET, TEM, IR, XRD and DTA-TG. The results show that amorphous nano-sized SiO2 powders can be obtained by means of microemulsion method, and the powders are approximately of spherical grains with size of 15-35 nm and the specific surface area of powder is up to 580-630 m2/g. |
| |
| Keywords: | microemulsion SiO2 nano-sized powders high specific surface area |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
