| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 봄 (04/22 ~ 04/23, 여수대학교) |
| 권호 |
11권 1호, p.932 |
| 발표분야 |
재료 |
| 제목 |
Synthesis of spherical titania particles by controlled hydrolysis |
| 초록 |
TiO2 particles have been considered as a good candidate for a variety of optical application due to their high refractive index. Because of technological importance of TiO2 particles, tailored particles with spherical shapes have been studied by lots of research groups. One of the typical approaches is precipitation of TiO2 precursor in aqueous alcohol solution. However, hydrolysis rate of titania precursor is so fast that the nucleation and growth steps in particle formation cannot be separated. Therefore, it is too difficult to make monodisperse TiO2 particles via conventional hydrolysis. In this presentation, simple method for the preparation of monodisperse TiO2 particles via controlled hydrolysis will be described. TiO2 precursors are mixed with ethanol in the presence of a salt or a polymer in solution and the monodisperse TiO2 particles were obtained through the sol-gel reaction. |
| 저자 |
유형균1, 이기라2, David J. Pine3, 양승만1
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| 소속 |
1한국과학기술원, 2LG화학기술원, 3Univ. of California at Santa Barbara |
| 키워드 |
Titania particles; Sol-gel reaction; Light scattering
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| E-Mail |
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| 원문파일 |
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