NDLI: Mesostructured zeolites: bridging the gap between zeolites and MCM-41

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Prasomsri, Teerawit Garcia Martinez, Javier Jiao, Wenqian Weng, Steve Z.
Description	Author Affiliation: Prasomsri T ( Rive Technology, Inc., 1 Deer Park Drive, Monmouth Junction, NJ 08852, USA. j.garcia@ua.es.);
Abstract	Surfactant-templating is one of the most versatile and useful techniques to implement mesoporous systems into solid materials. Various strategies based on various interactions between surfactants and solid precursors have been explored to produce new structures. Zeolites are invaluable as size- and shape-selective solid acid catalysts. Nevertheless, their micropores impose limitations on the mass transport of bulky feed and/or product molecules. Many studies have attempted to address this by utilizing surfactant-assisting technology to alleviate the diffusion constraints. However, most efforts have failed due to micro/mesopore phase separation. Recently, a new technique combining the uses of cationic surfactants and mild basic solutions was introduced to synthesise mesostructured zeolites. These materials sustain the unique characteristics of zeolites (i.e., strong acidity, crystallinity, microporosity, and hydrothermal stability), including tunable mesopore sizes and degrees of mesoporosity. The mesostructured zeolites are now commercially available through Rive Technology, and show superior performance in VGO cracking. This feature article provides an overview of recent explorations in the introduction of mesoporosity into zeolites using surfactant-templating techniques. Various porous materials, preparation methods, physical and catalytic properties of mesostructured zeolites will be discussed.
ISSN	13597345
Volume Number	51
Journal	Chemical Communications
Issue Number	43
e-ISSN	1364548X
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2015-05-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Chemistry
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Surfaces, Coatings and Films Materials Chemistry Metals and Alloys Electronic, Optical and Magnetic Materials Catalysis

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