On the location of Lewis acidic aluminum in zeolite mordenite and the role of framework-associated aluminum in mediating the switch between Brønsted and Lewis acidity
Manoj Ravi, Vitaly L. Sushkevich, Jeroen A. van Bokhoven
Abstract
Framework-associated aluminum is demonstrated to facilitate a reversible switch between Lewis and Brønsted acidity in zeolites with the Lewis acid sites preferentially populating the side-pockets in the case of mordenite.
Topics & Concepts
MordeniteLewis acids and basesZeoliteAluminiumBrønsted–Lowry acid–base theoryChemistryInorganic chemistryCatalysisOrganic chemistryZeolite Catalysis and SynthesisChemical Synthesis and CharacterizationMetal-Organic Frameworks: Synthesis and Applications