Surfactant-directed mesoporous zeolites with enhanced catalytic activity in tetrahydropyranylation of alcohols: Effect of framework type and morphology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00476370" target="_blank" >RIV/61388955:_____/17:00476370 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10368343

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.apcata.2017.02.019" target="_blank" >http://dx.doi.org/10.1016/j.apcata.2017.02.019</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcata.2017.02.019" target="_blank" >10.1016/j.apcata.2017.02.019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surfactant-directed mesoporous zeolites with enhanced catalytic activity in tetrahydropyranylation of alcohols: Effect of framework type and morphology

Popis výsledku v původním jazyce

Nanosponge zeolite beta was hydrothermally synthesized using multi-quarternary ammonium surfactant as a mesa-micro hierarchical structure directing agent. The nanosponge morphology of the beta zeolite consisted of randomly interconnected nanocrystals with thickness of 10-20 nm. The beta nanosponges with highly mesoporous structure exhibited enhanced catalytic activity in tetrahydropyranylation of alcohols (methanol, 1-octanol, cyclohexanol and 2-adamantanol) when compared with the conventional beta zeolites and nanosponge zeolites of MTW and MFT framework types. The enhanced catalytic performance (similar to 60% conversion with 90-100% selectivity towards tetrahydropyranyl ether and over two times higher initial rate compared to other zeolites) of hierarchical beta nanosponges can be attributed to the high accessibility of acid sites and facile diffusion of reactants and products through the mesopores. (C) 2017 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Surfactant-directed mesoporous zeolites with enhanced catalytic activity in tetrahydropyranylation of alcohols: Effect of framework type and morphology

Popis výsledku anglicky

Nanosponge zeolite beta was hydrothermally synthesized using multi-quarternary ammonium surfactant as a mesa-micro hierarchical structure directing agent. The nanosponge morphology of the beta zeolite consisted of randomly interconnected nanocrystals with thickness of 10-20 nm. The beta nanosponges with highly mesoporous structure exhibited enhanced catalytic activity in tetrahydropyranylation of alcohols (methanol, 1-octanol, cyclohexanol and 2-adamantanol) when compared with the conventional beta zeolites and nanosponge zeolites of MTW and MFT framework types. The enhanced catalytic performance (similar to 60% conversion with 90-100% selectivity towards tetrahydropyranyl ether and over two times higher initial rate compared to other zeolites) of hierarchical beta nanosponges can be attributed to the high accessibility of acid sites and facile diffusion of reactants and products through the mesopores. (C) 2017 Elsevier B.V. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GAP106%2F12%2F0189" target="_blank" >GAP106/12/0189: Dvojrozměrné zeolity s říditelnou architekturou</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Applied Catalysis A - General

ISSN

0926-860X

e-ISSN

—

Svazek periodika

537

Číslo periodika v rámci svazku

MAY 2017

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

24-32

Kód UT WoS článku

000400200300003

EID výsledku v databázi Scopus

2-s2.0-85014627182