화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 가을 (10/26 ~ 10/27, 한국과학기술원)
권호 13권 2호, p.1528
발표분야 미립자공학
제목 Understanding of Aging step in TiO2 Sol Preparation for the Synthesis of High Activated TiO2 Nanosized Particles and Its Mechanism
초록 In this study, we investigated the effects of sol preparation process variables in order to control microstructure characterization of high activated Anatase type TiO2 particles. Using TTIP as a starting material, we prepared TiO2 sol solution through the process of hydrolysis/polycondensation, aging, peptization. As a result of this study, we knew that aging among the sol preparation step had an influence upon characterization of calcined TiO2 particles as well as hydrous TiO2 particles. According to aging, we could control the crystallinity and microstructure of TiO2 sol particles and calcined TiO2 particles. And we could also control the size distribution of average hydrous TiO2 sol particles. The microstructure of TiO2 sol particles controlled by aging had an influence the microstructure of calcined TiO2 particles. Hence, we knew that the aging was the most important step to control microstructure of calcined TiO2 particles and films.
저자 유승준1, 윤호성2, 장희동2, 황경준1, 곽동희1, 이세일1, 이재욱3, 유영훈1
소속 1서남대, 2한국지질자원(연), 3조선대
키워드 TiO2; Aging; Peptization; Anatase
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