Efficient Catalyst Based on Pyridinium Modified MCM-41 for Carbon Dioxide Utilization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924233" target="_blank" >RIV/60461373:22310/22:43924233 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22320/22:43924233 RIV/60461373:22810/22:43924233

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s10562-022-03928-1" target="_blank" >https://link.springer.com/article/10.1007/s10562-022-03928-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10562-022-03928-1" target="_blank" >10.1007/s10562-022-03928-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficient Catalyst Based on Pyridinium Modified MCM-41 for Carbon Dioxide Utilization

Popis výsledku v původním jazyce

Pyridinium halide modified MCM-41 was used as a catalyst for the model reaction of styrene oxide with carbon dioxide. The modification was performed in two steps-first, the modification of MCM-41 by halogenopropyl triethoxy silane followed by the reaction with pyridine. The process was successful for the production of pyridinium bromide and iodide. The modification by chlorine was problematic. The prepared materials were characterized by available methods-XRF, XRD, EA, TPH, DVS, FTIR, UV/Vis, TGA, and nitrogen physisorption-confirming the successful formation of the desired material. For the catalysis, the strong interaction of pyridinium ion was necessary. The prepared materials containing bromine and iodine were used as efficient catalysts for the formation of styrene carbonate from styrene oxide. The achieved selectivity was up to 99% with TONs 5800 (calculated on the amount of loaded pyridine) under 1.2 MPa, 120 degrees C, without any solvent. Solvents negatively influenced the reaction rate. Dependently on halogen, the rate increased in the row Cl &lt; Br &lt; I modified MCM-41. The catalysts might be reused with only a slight loss of activity in the three following cycles. These materials represent simple, available, and promising catalysts for the reaction of epoxides with carbon dioxide.

Název v anglickém jazyce

Efficient Catalyst Based on Pyridinium Modified MCM-41 for Carbon Dioxide Utilization

Popis výsledku anglicky

Pyridinium halide modified MCM-41 was used as a catalyst for the model reaction of styrene oxide with carbon dioxide. The modification was performed in two steps-first, the modification of MCM-41 by halogenopropyl triethoxy silane followed by the reaction with pyridine. The process was successful for the production of pyridinium bromide and iodide. The modification by chlorine was problematic. The prepared materials were characterized by available methods-XRF, XRD, EA, TPH, DVS, FTIR, UV/Vis, TGA, and nitrogen physisorption-confirming the successful formation of the desired material. For the catalysis, the strong interaction of pyridinium ion was necessary. The prepared materials containing bromine and iodine were used as efficient catalysts for the formation of styrene carbonate from styrene oxide. The achieved selectivity was up to 99% with TONs 5800 (calculated on the amount of loaded pyridine) under 1.2 MPa, 120 degrees C, without any solvent. Solvents negatively influenced the reaction rate. Dependently on halogen, the rate increased in the row Cl &lt; Br &lt; I modified MCM-41. The catalysts might be reused with only a slight loss of activity in the three following cycles. These materials represent simple, available, and promising catalysts for the reaction of epoxides with carbon dioxide.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10401 - Organic chemistry

Projekt

<a href="/cs/project/GA21-02183S" target="_blank" >GA21-02183S: Porézní polymerní sítě s helikálně chirálními polyacetylenovými řetězci pro enantioselektivní aplikace</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

CATALYSIS LETTERS

ISSN

1011-372X

e-ISSN

1572-879X

Svazek periodika

152

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

3576-3585

Kód UT WoS článku

000750692500001

EID výsledku v databázi Scopus

2-s2.0-85124241778