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졸 - 겔 법에 의한 SiO2 / ZnO 구형 미립자의 제조
이창우,함영민,장윤호,강현섭,이융 한국공업화학회 1997 응용화학 Vol.1 No.2
This study was performed to manufacture formless ZnO powder into SiO₂/ZnO spherical fine powder by Sol-Gel method. Under N₂ atmosphere the reaction was carried out changing the amount of NH₃ as a catalyst, ethanol as a solvent, water, ZnO seed and varying the reaction temperature and solvent. As a result, we found the fact that we could control particle size SiO₂/ZnO composite by altering molar composition of ethanol and that particle size was decreased as molar ratio of ethanol to TEOS was increased. Besides, we could prepare SiO₂/ZnO composite of which particle size is 0.4 ㎛ and degree of dispersion is good when molar ratio of ethanol to TEOS is 1:146.