화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2011년 가을 (11/02 ~ 11/04, 경원대학교)
권호 15권 2호
발표분야 무기재료
제목 Influence of ammonium salt precipitant on the size and dispersion platelike α-alumina nanoparticle
초록 The platelike α-alumina nanoparticles were synthesized by using the aluminum nitrate precursor and ammonium salt precipitant. To study the influence of precipitant on the size and dispersion of resultant α-alumina nanoparticle, different ammonium salts, such as ammonium hydroxide, ammonium hydrogen carbonate and ammonium carbonate, were used as precipitants. AlF3 was also used in order to induce platelike morphology of α-alumina. The samples were characterized by XRD,SEM andTEM.
In comparison to other salts, ammonium carbonate precipitant indicates a better dispersion and finer particles. It was also observed the time for reaction of aluminum nitrate with ammonium carbonate during preparation process affects significantly the dispersion of α-alumina nanoparticles.
저자 신두철, 이유진, 이상진, 박진욱, 홍성수, 박성수, 이근대
소속 부경대
키워드 α-alumina; nanoparticle; ammonium salt; dispersant
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