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J. Korean Ceram. Soc. > Volume 46(3); 2009 > Article
Journal of the Korean Ceramic Society 2009;46(3): 288.
doi: https://doi.org/10.4191/kcers.2009.46.3.288
γ-Al2O3로부터 가역과정을 경유한 AlO(OH) 나노콜로이드의 합성
조현란, 김숙현, 박병기
한국화학연구원 에너지소재연구센터
Synthesis of AlO(OH) Nano Colloids from γ-Al2O3 via Reversible Process
Hyun-Ran Cho, Sook-Hyun Kim, Byung-Ki Park
Energy Materials Research Center, Korea Research Institute of Chemical Technology
ABSTRACT
The platelet AlO(OH) nano colloids were prepared by hydrothermal reaction of the $gamma-Al_2O_3$ obtained with dehydration of $gamma$-AlO(OH) and dilute $CH_3COOH$ solution. In hydrothermal reaction process, reversible reaction was accompanied between $gamma-Al_2O_3$ and AlO(OH), and hydrothermal reaction temperature, hydrothermal reaction time and $CH_3COOH$ concentration had an effect on the crystal structure, surface chemical property, surface area, pore characteristics and crystal morphology of the AlO(OH) nano colloid particles. In this study, it was investigated to the hydrothermal reaction condition of the AlO(OH) nano colloid for using catalyst support, heat resisting agent, adsorbents, binder, polishing agent and coating agent. The crystal structure, surface area, pore volume and pore size of the platelet AlO(OH) nano colloids were investigated by XRD, TEM, TG/DTA, FT-IR and $N_2$ BET method in liquid nitrogen temperature.
Key words: Aluminum salts, AlO(OH), Colloids, Catalysts, Coating materials
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