In this issue of Chem Catalysis, Ruiz-Martinez and co-workers investigate the effect of aluminum (Al) proximity and distribution on acid-catalyzed reactions in zeolites. They find that Al enrichment near the external surface results in paired acid sites that exhibit enhanced activity for aromatics formation.
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Politecnico di Milano, Department of Chemistry, Materials, and Chemical Engineering ''Giulio Natta,'' Piazza Leonardo da Vinci 32, 20133 Milano, Italy;
