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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F13%3A00420720" target="_blank" >RIV/61388955:_____/13:00420720 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388980:_____/13:00420720

Výsledek na webu

<a href="http://dx.doi.org/10.1002/anie.201206557" target="_blank" >http://dx.doi.org/10.1002/anie.201206557</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/anie.201206557" target="_blank" >10.1002/anie.201206557</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Angewandte Chemie. International Edition in English

ISSN

1433-7851

e-ISSN

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Svazek periodika

52

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

4

Strana od-do

2038-2041

Kód UT WoS článku

000314654000028

EID výsledku v databázi Scopus

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