| 反相微乳液法合成纳米钛酸钡球形颗粒 |
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| 引用本文： | 宋方平,朱启安,王树峰,陈万平. 反相微乳液法合成纳米钛酸钡球形颗粒[J]. 无机化学学报, 2006, 22(2): 355-358 |
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| 作者姓名： | 宋方平 朱启安 王树峰 陈万平 |
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| 作者单位： | 湘潭大学化学学院,湘潭,411105 |
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| 摘 要： | 0引言BaTiO3陶瓷是一种具有高介电常数及优良的铁电、压电和绝缘性能的电子陶瓷材料。不仅是重要的电子陶瓷、PTC陶瓷原料[1],而且也是制备多层陶瓷电容器(M LC C)的必要组分[2,3]。随着现代科学技术的发展,人们更注重材料颗粒的大小和形貌,当材料的粒径达到纳米级时,材料的性能将发生很大的变化。另外,这种具有纳米尺度、球形颗粒的电子陶瓷材料,可能还具有一些新的物理作用,具有潜在的应用价值。B aTiO3粉体的制备方法有:固相煅烧法、化学共沉淀法、溶胶-凝胶法、水热法[4￣11]等。固相法反应温度高(一般1000￣1200℃)、反应活性差…
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| 关 键 词： | W/O微乳液； 球形粒子； 钛酸钡； 纳米颗粒 |
| 文章编号： | 1001-4861(2006)02-0355-04 |
| 收稿时间： | 2005-07-18 |
| 修稿时间： | 2005-10-06 |
Preparation of BaTiO3 Spherical Nanoparticles by Reverse Microemulsion |
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| SONG Fang-Ping,ZHU Qi-An,WANG Shu-Feng and CHEN Wan-Ping. Preparation of BaTiO3 Spherical Nanoparticles by Reverse Microemulsion[J]. Chinese Journal of Inorganic Chemistry, 2006, 22(2): 355-358 |
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| Authors: | SONG Fang-Ping ZHU Qi-An WANG Shu-Feng CHEN Wan-Ping |
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| Affiliation: | College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105,College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105,College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105 and College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105 |
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| Abstract: | Nanosized BaTiO3 spherical particles were synthesized in reverse microemulsion consisting of water, Triton-10, n-hexanol and cyclohexane. The reaction conditions were optimized on the basis of the study of the influence of the molar ratio of water to surfactant, the concentration of reactants and ageing time on the shape and size of BaTiO3 particles. The prepared BaTiO3 samples were characterized by TEM and XRD. The results show that the spherical BaTiO3 nanoparticles with an average size of 20~80 nm belong to single tetragonal system. The molar ratio of barium to titanium of products is 1.0 from ICP analysis. |
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| Keywords: | W/O microemulsion spherical particle barium titanate nanoparticle |
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