Characterization of micro- and mesoporous Ti-catalysts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F18%3A10236599" target="_blank" >RIV/61989100:27360/18:10236599 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/18:10236599 RIV/61989100:27710/18:10236599 RIV/61989100:27740/18:10236599

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of micro- and mesoporous Ti-catalysts

Popis výsledku v původním jazyce

Titanium catalysts are important materials for many types of oxidation reactions. Conventionally prepared microporous titanosilicate, namely TS-1, is well-known catalyst used in oxidation reaction with hydrogen peroxide. Since the size restriction of pores in microporous catalysts limits their wide application, large effort has been invested in order to prepare new types of catalysts with expanded surface area and pore size. Such new type of catalyst, mesoporous TS-1, was compared with conventional microporous TS-1 in our study. Besides the typical reactions, e.g. epoxidations, oxidation of sulfides represents another important branch of application. This type of reaction leads to the preparation of organic sulfoxides and sulfones, which are important chemical intermediates and building blocks of pharmaceutical and agrochemical compounds. Our study is focused on the testing of both types of catalysts, i.e., microporous TS-1 and mesoporous TS-1, in the oxidation of methyl phenyl sulfide with 30% hydrogen peroxide, and the influence of the structure in conversions of reagents and the selectivity to products was described. Samples were studied using BET analysis and X-ray powder diffraction analysis. The morphology of the samples was observed by atomic force microscopy.

Název v anglickém jazyce

Characterization of micro- and mesoporous Ti-catalysts

Popis výsledku anglicky

Titanium catalysts are important materials for many types of oxidation reactions. Conventionally prepared microporous titanosilicate, namely TS-1, is well-known catalyst used in oxidation reaction with hydrogen peroxide. Since the size restriction of pores in microporous catalysts limits their wide application, large effort has been invested in order to prepare new types of catalysts with expanded surface area and pore size. Such new type of catalyst, mesoporous TS-1, was compared with conventional microporous TS-1 in our study. Besides the typical reactions, e.g. epoxidations, oxidation of sulfides represents another important branch of application. This type of reaction leads to the preparation of organic sulfoxides and sulfones, which are important chemical intermediates and building blocks of pharmaceutical and agrochemical compounds. Our study is focused on the testing of both types of catalysts, i.e., microporous TS-1 and mesoporous TS-1, in the oxidation of methyl phenyl sulfide with 30% hydrogen peroxide, and the influence of the structure in conversions of reagents and the selectivity to products was described. Samples were studied using BET analysis and X-ray powder diffraction analysis. The morphology of the samples was observed by atomic force microscopy.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2017 : conference proceedings : October 18-20, 2017, Brno, Czech Republic

ISBN

978-80-87294-78-9

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

315-320

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

18. 10. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000452823300052