Synthesis of New Hybrid Organic-Inorganic Alumina Gels by the Sol-Gel Method |
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Authors: | F Touati N Gharbi H Zarrouk |
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Institution: | (1) Laboratoire de Chimie des Matériaux, Département de Chimie, Facultè des Sciences de Tunis, 1060 le Belvédère Tunis, Tunisie |
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Abstract: | New hybrid organic-inorganic alumina gels have been prepared by reacting aluminum sec-butoxide and propane-1,2-diol, in CCl4 as solvent. This reaction occurred without water addition and without the use of any catalyst, leading to the formation of
transparent and monolithic gels. IR,27Al and13CNMR show that an interchange reaction between OBu
s
alkoxide groups and
diol groups occurred, leading to the hybrid gels.
Samples heat treated at different temperatures under argon are weakly porous and have a small specific surface area. XRD indicates
the presence of pure α-alumina at 1450°C. |
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Keywords: | aluminum hybrid gels diol 27Al and13C NMR alumina |
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