Chapter
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Effect of NaOH, TPAOH, and TPABr Concentration on the Growth Rate and Morphology of Silicalite-1 1
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Downloaded by INDIANA UNIV BLOOMINGTON on May 9, 2015 | http://pubs.acs.org Publication Date: May 27, 1988 | doi: 10.1021/bk-1988-0368.ch017
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D. T. Hayhurst , R. Aiello , J . B.Nagy , F. Crea , G. Giordano , A. Nastro , and J . C. Lee 1
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Department of Chemical Engineering, Cleveland State University, Cleveland, OH 44115 Dipartimento di Chimica, Universitàdella Calabria, Arcavacata di Rende, 87030 Rende (CS), Italy Laboratory of Catalysis, Center for Advanced Materials Research, Facultés Universitaires Notre Dame de la Paix, Rue de Bruxelles 61, B-5000 Namur, Belgium 2
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The influence of NaOH, TPAOH and TPABr on the formation of silicalite-1 was studied using the reaction batch mixture xMO-yTPABr-100SiO-1000HO where M was either Na or ΤΡΑ, x ranged from 0.5 to 4.0 and y ranged from 0.5 to 16. Reactions were carried out at 170C in unstirred teflon-lined autoclaves. For all runs, silicalite-1 was the only phase found to crystallize. TPA ions were found to have both a structure-directing and space-filling role. At low initial TPA concentrations (TPA/100SiO
