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Chemical bonding nature and mesoporous structure of nickel intercalated montmorillonite clay

Title
Chemical bonding nature and mesoporous structure of nickel intercalated montmorillonite clay
Authors
Park, Hye MiKim, Tae WooHwang, Seong-JuChoy, Jin-Ho
Ewha Authors
최진호황성주
SCOPUS Author ID
최진호scopus; 황성주scopus
Issue Date
2006
Journal Title
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
ISSN
0253-2964JCR Link
Citation
vol. 27, no. 9, pp. 1323 - 1328
Keywords
Ni-intercalated montmorillonite claynanohybridmesoporosityexfoliation-restackinghouse-of-card structure
Publisher
KOREAN CHEMICAL SOC
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
Mesoporous nickel intercalated aluminosilicate nanohybrid has been synthesized through a recombination reaction between the colloidal suspension of exfoliated montmorillonite nanosheets and aqueous nickel acetate solution. According to powder X-ray diffraction and field emission-scanning electron microscopic analyses, the intercalation of nickel species expands significantly the basal spacing of the host montmorillonite clay and the crystallites of the intercalation compound are assembled to form a house-of-card structure. N-2 adsorption-desorption isotherm measurements with BJH pore analyses clearly demonstrated that the porosity of the intercalate originates mainly from mesopores (diameter similar to 50 angstrom) formed by the house-of-card type stacking of clay crystallites. From FT-IR and X-ray absorption spectroscopic analyses, it becomes certain that intercalated nickel ion is stabilized in an isolated NiO6 Octahedral unit. The present mesoporous intercalation compound is expected to be applicable as efficient catalysts or absorbents.
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자연과학대학 > 화학·나노과학전공 > Journal papers
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