Alkylphosphonic acid- and small amine-templated synthesis of hierarchical silicoaluminophosphate molecular sieves with high isomerization selectivity to di-branched paraffins

The P atoms in alkylphosphonic acid are introduced into the SAPO-11 framework, and thus the long alkyl groups bonded with these P atoms induce the formation of intracrystal mesopores after calcination. The interpenetrating micro–mesoporous channels of the hierarchical SAPO-11 endow the resulting cat...

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