화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2007년 가을 (11/02 ~ 11/03, 한경대학교)
권호 11권 2호
발표분야 무기재료
제목 Hydrothermal effect on textural properties of synthesized hydrotalcite of different Mg/Al molar ratio
초록 The synthetic hydrotalcite with Mg/Al molar ratios of 2.0-3.0 were synthesized using magnesium chloride and aluminum chloride precursors by coprecipitation method at low supersaturation conditions followed by hydrothermal treatment under water vapor pressure at 80-180oC. The hydrothermal treatment at increasing temperature from 100-200oC and aging time increased the crystallinity and crystallite size whereas surface area and pore volume decreased with increased in temperature significantly. The synthesized hydrotalcite were characterized by powder X-ray diffraction (XRD) and Field emission scanning electron microscopy (FE-SEM). The specific surface area and average pore volume were obtained using a multiple point nitrogen gas adsorption.
저자 김종길, 김희택, Sarawade Pradip
소속 한양대
키워드 Synthetic hydrotalcite; Crystallinity; hydrothermal
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