06-P-07 - Strong acidic and high temperature hydrothermally stable mesoporous aluminosilicates with well-ordered hexagonal structure
2001
Publisher Summary This chapter discusses strong acidic and high-temperature hydrothermally stable mesoporous aluminosilicates with well-ordered hexagonal structure. These mesoporous aluminosilicates have been successfully synthesized from the assembly of preformed aluminosilicate precursors with cetyltrimethylammonium bromide (CTAB) surfactant. The MAS-5 shows extraordinary stability both in boiling water and in steam. Temperature-programmed desorption of ammonia (NH 3 ) shows that the acidic strength of MAS-5 is much higher than that of MCM-41.
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