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Enhancement of Activity and Selectivity in Acid-Catalyzed Reactions by Dealuminated Hierarchical Zeolites

SYSNO ASEP	0420720
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Enhancement of Activity and Selectivity in Acid-Catalyzed Reactions by Dealuminated Hierarchical Zeolites
Author(s)	Sazama, Petr (UFCH-W)_{RID, ORCID} Sobalík, Zdeněk (UFCH-W)_RID Dědeček, Jiří (UFCH-W)_{RID, ORCID} Jakubec, Ivo (UACH-T)_{SAI, RID, ORCID} Parvulescu, V. I. (RO) Bastl, Zdeněk (UFCH-W)_{RID, ORCID} Rathouský, Jiří (UFCH-W)_{RID, ORCID} Jirglová, Hana (UFCH-W)_{RID, ORCID}
Source Title	Angewandte Chemie - International Edition. - : Wiley - ISSN 1433-7851 Roč. 52, č. 7 (2013), s. 2038-2041
Number of pages	4 s.
Language	eng - English
Country	DE - Germany
Keywords	alkylation ; cracking ; dealumination
Subject RIV	CF - Physical ; Theoretical Chemistry
Subject RIV - cooperation	Institute of Inorganic Chemistry - Inorganic Chemistry
R&D Projects	GAP106/11/0624 GA ČR - Czech Science Foundation (CSF)
	FR-TI3/316 GA MPO - Ministry of Industry and Trade (MPO)
Institutional support	UFCH-W - RVO:61388955 ; UACH-T - RVO:61388980
UT WOS	000314654000028
EID SCOPUS	84873548289
DOI	10.1002/anie.201206557
Annotation	High-silica zeolites with crystalline aluminosilicate frame- works balance the charge of strongly acidic protons during the processing of oil, in petrochemistry, and increasingly in numerous organic syntheses. The transformation of hydro- carbons is controlled by the concentration and strength of the acid sites and the dimensions and architecture of the inner pores. Zeolite micropores, which have a diameter similar to organic molecules, govern the shape selectivity of the reaction in the inner space, but also result in slow transport of reactants and products, thus limiting the reaction rate. [1] Several approaches have been developed to enhance the mass transport by using zeolite nanosheets and nanocrystals, [2–4] or zeolites that contain both micro- and mesopores. The latter hierarchical zeolites were prepared by confined crystal growth, [5,6] by using polymers as mesoporogens, [7] or through post-synthesis desilication or dealumination processes.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2014

Number of the records: 1