The structure-catalytic activity relationship for the transient layered zeolite MCM-56 with MWW topology

2020
journal article
article
13
dc.abstract.enZeolite MCM-56 is a high alumina, monolayered form of the commercially useful framework MWW but it is a transient product during crystallization, so many factors influence its state and quality. This work examines properties of a series of MCM-56 and MCM-49 samples synthesized for different times using Aerosil, Ultrasil and Ludox as silica sources, hexamethyleneimine as the structure directing agent and additionally aniline as structure promoting agent. It was found that the most important parameter, governing the catalytic activity in the test reaction of Friedel-Crafts alkylation of mesitylene with benzyl alcohol, was availability of the Brønsted acid centers located at the external surfaces of the crystals. The key role in correlating physical characteristic with activity was played by infrared spectroscopy as it enabled the study of many properties of the tested materials, starting from the total concentration of acid centers, and their type (Brønsted or Lewis acids) through the concentration of centers available for the reagent molecules, to investigating the correlation of acidity with the degree of zeolite crystallinity.pl
dc.affiliationWydział Chemii : Zakład Chemii Nieorganicznejpl
dc.contributor.authorKorzeniowska, Aleksandra - 171069 pl
dc.contributor.authorGrzybek, Justyna - 190165 pl
dc.contributor.authorKałahurska, Katarzyna - 396239 pl
dc.contributor.authorKubu, Martinpl
dc.contributor.authorRoth, Wiesław - 228241 pl
dc.contributor.authorGil, Barbara - 128059 pl
dc.date.accession2020-04-27pl
dc.date.accessioned2020-04-28T17:07:09Z
dc.date.available2020-04-28T17:07:09Z
dc.date.issued2020pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.physical116-124pl
dc.description.publication1,0pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume345pl
dc.identifier.doi10.1016/j.cattod.2019.09.044pl
dc.identifier.eissn1873-4308pl
dc.identifier.issn0920-5861pl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/154837
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/pii/S0920586119305413pl
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa*
dc.rights.licenceCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl*
dc.share.typeinne
dc.subject.enstructure-catalytic activity relationshippl
dc.subject.enMCM-56 zeolitepl
dc.subject.enFriedel-Crafts alkylationpl
dc.subject.enexternal Brønsted acid sitespl
dc.subtypeArticlepl
dc.titleThe structure-catalytic activity relationship for the transient layered zeolite MCM-56 with MWW topologypl
dc.title.journalCatalysis Todaypl
dc.title.volume8th Czech-Italian-Spanish Symposium on Zeolites and Catalysispl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Zeolite MCM-56 is a high alumina, monolayered form of the commercially useful framework MWW but it is a transient product during crystallization, so many factors influence its state and quality. This work examines properties of a series of MCM-56 and MCM-49 samples synthesized for different times using Aerosil, Ultrasil and Ludox as silica sources, hexamethyleneimine as the structure directing agent and additionally aniline as structure promoting agent. It was found that the most important parameter, governing the catalytic activity in the test reaction of Friedel-Crafts alkylation of mesitylene with benzyl alcohol, was availability of the Brønsted acid centers located at the external surfaces of the crystals. The key role in correlating physical characteristic with activity was played by infrared spectroscopy as it enabled the study of many properties of the tested materials, starting from the total concentration of acid centers, and their type (Brønsted or Lewis acids) through the concentration of centers available for the reagent molecules, to investigating the correlation of acidity with the degree of zeolite crystallinity.
dc.affiliationpl
Wydział Chemii : Zakład Chemii Nieorganicznej
dc.contributor.authorpl
Korzeniowska, Aleksandra - 171069
dc.contributor.authorpl
Grzybek, Justyna - 190165
dc.contributor.authorpl
Kałahurska, Katarzyna - 396239
dc.contributor.authorpl
Kubu, Martin
dc.contributor.authorpl
Roth, Wiesław - 228241
dc.contributor.authorpl
Gil, Barbara - 128059
dc.date.accessionpl
2020-04-27
dc.date.accessioned
2020-04-28T17:07:09Z
dc.date.available
2020-04-28T17:07:09Z
dc.date.issuedpl
2020
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.physicalpl
116-124
dc.description.publicationpl
1,0
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
345
dc.identifier.doipl
10.1016/j.cattod.2019.09.044
dc.identifier.eissnpl
1873-4308
dc.identifier.issnpl
0920-5861
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/154837
dc.identifier.weblinkpl
https://www.sciencedirect.com/science/article/pii/S0920586119305413
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa
dc.rights.licence
CC-BY-NC-ND
dc.rights.uri*
http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl
dc.share.type
inne
dc.subject.enpl
structure-catalytic activity relationship
dc.subject.enpl
MCM-56 zeolite
dc.subject.enpl
Friedel-Crafts alkylation
dc.subject.enpl
external Brønsted acid sites
dc.subtypepl
Article
dc.titlepl
The structure-catalytic activity relationship for the transient layered zeolite MCM-56 with MWW topology
dc.title.journalpl
Catalysis Today
dc.title.volumepl
8th Czech-Italian-Spanish Symposium on Zeolites and Catalysis
dc.typepl
JournalArticle
dspace.entity.type
Publication

* The migration of download and view statistics prior to the date of April 8, 2024 is in progress.

Views
15
Views per month
Views per city
Ashburn
4
Paris
2
Wroclaw
2
Des Moines
1
Dublin
1
Hanover
1
Krakow
1
Warsaw
1
Downloads
korzeniowska_et-al_the_structure-catalytic_activity_relationship_for_the_transient_layered_2020.pdf
4
korzeniowska_et-al_the_structure-catalytic_activity_relationship_for_the_transient_layered_2020.odt
1