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Hierarchical SAPO-5 catalysts with a bimodal pore system were synthesized and characterized with XRD, Al and Si AAS, N 2 physisorption, 27 Al and 29 Si MAS NMR, and temperature-programmed decomposition of n-propylamine. The effect of silicon source, silicon content, and amount of mesopore-directing agent (TPHAC) was studied. XRD showed that the crystallization of the SAPO-5...
Crystalline silicoaluminophosphate (SAPO) of the AFI framework type with a bimodal pore system and high silicon content was hydrothermally synthesized using a soft template with a silicon-containing head group and cyclohexylamine to maintain microporosity. The structural and catalytic properties of the hierarchical structure were extensively characterized and compared to those of microporous SAPO-5...
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