Synthesis of highly ordered mesoporous P63/mmc and p6mm phases by adding alcohols to the system for the SBA-1 synthesis

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Abstract The influence of acidity, alkyl chain length of alcohols, synthesis temperature and time on the molecular sieve synthesis by adding alcohols to the system for the SBA-1 synthesis were studied. Upon increasing the concentration of alcohols (C m H 2 m +1 OH) in the mixture of tetraethyl orthosilicate (TEOS), cetyltriethylammonium bromide (CTEABr), HCl and H 2 O, highly ordered P 6 3 / mmc and p 6 mm phases were formed when m  = 2 and 3 ≤  m  ≤ 6, respectively. The amount of HCl was an important factor for the phase-selection under acidic conditions.

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