Incorporation of highly dispersed aluminum into inner surfaces of supermicroporous silica using anionic surfactant

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Incorporation of aluminum on the inner surfaces of mesopores was carried out under hydrothermal conditions for synthesizing mesoporous silica using an anionic surfactant. The synthesis concept was based on ionic interactions between aluminum cations and anionic surfactants, with the latter as templates. We easily obtained aluminum-containing microporous silica with supermicropores. The results of pyridine adsorption and cumene cracking reactions strongly indicated that unlike the materials prepared by the previously reported post synthesis and direct synthesis methods, the larger amount of aluminum incorporated into the materials were effectively present on the inner surfaces of supermicropores.