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|標題:||Isomerization of endo-tetrahydrodicyclopentadiene over clay-supported chloroaluminate ionic liquid catalysts||作者:||Huang, M.Y.
|關鍵字:||Montmorillonite;Tetrahydrodicyclopentadiene;Chloroaluminate ionic;liquids;layered silicate nanocomposites;thermal/mechanical properties;mechanical-properties;solid catalysts;montmorillonite;hydrogenation;polystyrene;zeolites||Project:||Journal of Molecular Catalysis a-Chemical||期刊/報告no：:||Journal of Molecular Catalysis a-Chemical, Volume 315, Issue 1, Page(s) 69-75.||摘要:||
Various halide salts with different alkyl lengths were allowed to intercalate into the layer structure of sodium montmorillonite clay through an ion exchange reaction. Intercalation of 1-hexadecyl-3-methylimidazolium chloride, hexadecyltrimethylammonium bromide, dihexadecyldimethylammonium bromide, and tributylhexadecylphosphonium bromide could expand the spacing of the silicate layers from 12 to 37-41 angstrom (measured by X-ray diffraction). The modified clays were pretreated with the pyridine hydrochloride/AlCl(3) mixture and used for suitably supporting a chloroaluminate ionic liquid catalyst for the isomerization of endo-tetrahydrodicyclopentadiene into the corresponding exo-isomer. Nearly quantitative conversion to the desired product and nearly quantitative selectivity were observed for the newly developed clay-supported ionic liquid catalysts, which were proven to be recyclable. (C) 2009 Elsevier B.V. All rights reserved.
|Appears in Collections:||工學院|
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