Pore Structure of USY Zeolites in Dependence on Steaming Condition | Sciact - CRIS-system of Boreskov Institute of Catalysis

Pore Structure of USY Zeolites in Dependence on Steaming Condition Full article

Journal

Zeitschrift fur Anorganische und Allgemeine Chemie
ISSN: 0044-2313 , E-ISSN: 1521-3749

Output data

Year: 2014, Volume: 640, Number: 3-4, Pages: 577-581 Pages count : 5 DOI: 10.1002/zaac.201300403

Tags

Dealumination, Pore analyses, Structure, Zeolites

Authors

Lutz Wolfgang ¹ , Shutilov Roman A. ² , Gavrilov Vladimir Yu. ²

Affiliations

1	Brandenburgische Technische Universität Cottbus, Volmerstr. 13, 12489 Berlin, Germany
2	Boreskov Institute of Catalysis, Novosibirsk, Russia

Thermo-chemical dealumination of zeolite Y is accompanied by formation of different mesopore types. Closed mesopores in the nuclei and open pores at the crystal surface occur due to decomposition of its corresponding frameworks which are unstable in steam. Third type of lattice mesopores is formed inside the microporous bulk after removal of aluminum atoms if the remaining hydroxyl nests dehydroxylate. This process leads to a rearrangement of the zeolite framework. In contrast to the observed phenomenon, the defects are healed by migrating of ortho-silicic acid (H4SiO4) from the surface to the hydroxyl nests under conditions of suitable steaming. Since mesopores in USY zeolites (ultra stable Y) reduce their catalytic activity and the sorption capacity, they could be minimized by a proper treatment.

Lutz W. , Shutilov R.A. , Gavrilov V.Y.
Pore Structure of USY Zeolites in Dependence on Steaming Condition
Zeitschrift fur Anorganische und Allgemeine Chemie. 2014. V.640. N3-4. P.577-581. DOI: 10.1002/zaac.201300403 WOS Scopus РИНЦ OpenAlex ANCAN

Submitted:	Aug 13, 2013
Accepted:	Jan 9, 2014
Published online:	Jan 9, 2014
Published print:	Mar 1, 2014

≡ Web of science:	WOS:000333192400008
≡ Scopus:	2-s2.0-84902176532
≡ Elibrary:	21629662
≡ OpenAlex:	W1544526038
≡ Chemical Abstracts:	2014:52374
≡ Chemical Abstracts (print):	160:672357

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≡ Scopus	14	Сбор данных от 22.02.2026
≡ Elibrary	13	Сбор данных от 22.02.2026
≡ OpenAlex	14	Сбор данных от 22.02.2026