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http://dx.doi.org/10.4191/KCERS.2009.46.3.288

Synthesis of AlO(OH) Nano Colloids from γ-Al2O3 via Reversible Process  

Cho, Hyun-Ran (Energy Materials Research Center, Korea Research Institute of Chemical Technology)
Kim, Sook-Hyun (Energy Materials Research Center, Korea Research Institute of Chemical Technology)
Park, Byung-Ki (Energy Materials Research Center, Korea Research Institute of Chemical Technology)
Publication Information
Journal of the Korean Ceramic Society / v.46, no.3, 2009 , pp. 288-294 More about this Journal
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.
Keywords
Aluminum salts; AlO(OH); Colloids; Catalysts; Coating materials;
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Times Cited By KSCI : 11  (Citation Analysis)
Times Cited By SCOPUS : 0
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