The effect of sulfate ion on the synthesis and stability of mesoporous materials
作者： M.L. Guzmán-Castillo , H. Armendáriz-Herrera , A. Tobón-Cervantes , D.R. Acosta , P. Salas-Castillo
DOI: 10.1016/S0167-2991(02)80261-0
关键词:
摘要: The formation of hexagonal MCM-41 structures was studied using cetyltrimethyl ammonium bromide as the surfactant template and tetraethyl-orthosilicate silica source under hydrothermal conditions in presence sulfate ions. For as-synthesized samples ions improved stability material. Increasing concentration synthesis gel amount water lost by sample decreases, indicating a solid with more hydrophobic character. Since groups also favors condensation silicate units, which increase wall thickness.
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