Reversible synthesis of colloidal aluminum oxyhydroxide nano platelets from aluminum oxides
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초록
Aluminum oxyhydroxide (AlO(OH)) nano platelets were prepared through a hydrothermal reaction of γ-Al2O3 particles and a diluted CH3COOH solution. In the hydrothermal reaction process, a reversible reaction between γ-Al2O3 and aluminum oxyhydroxide occurred, and the hydrothermal reaction temperature, hydrothermal reaction time, CH3COOH concentration and the Al2O3/H2O ratio had an effect on a crystal structure, surface chemical properties, specific surface area, pore characteristics and crystal morphology of the aluminum oxyhydroxide nano platelets. In this study, the hydrothermal reaction conditions of the aluminum oxyhydroxide nano platelets for used as a catalyst support, a heat resisting agent, adsorbent, binder, polishing agent and a coating agent were investigated. The crystal structure, specific surface area, pore volume and the pore size of the aluminum oxyhydroxide nano platelets were investigated by XRD, TEM, TG/DTA, FT-IR and the N2 BET method at liquid nitrogen temperature.
Abstract
Aluminum oxyhydroxide (AlO(OH)) nano platelets were prepared through a hydrothermal reaction of γ-Al2O3 particles and a diluted CH3COOH solution. In the hydrothermal reaction process, a reversible reaction between γ-Al2O3 and aluminum oxyhydroxide occurred, and the hydrothermal reaction temperature, hydrothermal reaction time, CH3COOH concentration and the Al2O3/H2O ratio had an effect on a crystal structure, surface chemical properties, specific surface area, pore characteristics and crystal morphology of the aluminum oxyhydroxide nano platelets. In this study, the hydrothermal reaction conditions of the aluminum oxyhydroxide nano platelets for used as a catalyst support, a heat resisting agent, adsorbent, binder, polishing agent and a coating agent were investigated. The crystal structure, specific surface area, pore volume and the pore size of the aluminum oxyhydroxide nano platelets were investigated by XRD, TEM, TG/DTA, FT-IR and the N2 BET method at liquid nitrogen temperature.
참고문헌 (20)
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