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Aluminosilicate materials were obtained by sol-gel method, using different Al2O3and SiO2precursors in order to prepare sols based on water and organic solvents. As SiO2precursors, Aerosil 200 (TM) and tetraethoxysilane TEOS: Si(OC2H5)4were applied, while DisperalTMand aluminium secondary butoxide ATSB: Al(OC4H9)3were used for Al2O3ones. Bulk samples were obtained by heating gels at 500 degrees C,...
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