Effect of the different types of Sn-precursors on the properties of Sn FeMgAl-LDH samples

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43925123" target="_blank" >RIV/60461373:22310/23:43925123 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0169131723000273" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169131723000273</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.clay.2023.106840" target="_blank" >10.1016/j.clay.2023.106840</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of the different types of Sn-precursors on the properties of Sn FeMgAl-LDH samples

Popis výsledku v původním jazyce

In this work, LDH SnFeMgAl were prepared by co-precipitation method at constant temperature and pH using different Sn precursors. Calcined and LDHs samples were then determined for their chemical, structural, acid-base, and textural properties by XRD, SEM-EDX, TGA-MS, DRIFT, N₂ physisorption, NH₃-TPD, CO₂-TPD and the Baeyer–Villiger (BV) oxidation of myrtenal. Since turbidity often occurs in tin doped LDH, the goal of this work was to find a way to use another precursor that eliminates the turbidity problem. It was found that the choice of tin precursor had a significant effect on the acid-base properties of the obtained LDH materials and thus on their catalytic activity. All prepared catalysts were active both for the BV oxidation of myrtenal itself and for the subsequent hydrolysis of the formed formate to nopinone. The best results were obtained using FeMgAl LDH in the presence of the meta-chloroperoxybenzoic acid (mCPBA) and mixed oxide FeMgAl LDH-C in the presence of H₂O₂. In terms of nopinone yield, SnFeMgAl(Cl−)-C proved to be the best catalyst, which also had the highest proportion of acid and basic active sites among all the catalysts investigated.

Název v anglickém jazyce

Effect of the different types of Sn-precursors on the properties of Sn FeMgAl-LDH samples

Popis výsledku anglicky

In this work, LDH SnFeMgAl were prepared by co-precipitation method at constant temperature and pH using different Sn precursors. Calcined and LDHs samples were then determined for their chemical, structural, acid-base, and textural properties by XRD, SEM-EDX, TGA-MS, DRIFT, N₂ physisorption, NH₃-TPD, CO₂-TPD and the Baeyer–Villiger (BV) oxidation of myrtenal. Since turbidity often occurs in tin doped LDH, the goal of this work was to find a way to use another precursor that eliminates the turbidity problem. It was found that the choice of tin precursor had a significant effect on the acid-base properties of the obtained LDH materials and thus on their catalytic activity. All prepared catalysts were active both for the BV oxidation of myrtenal itself and for the subsequent hydrolysis of the formed formate to nopinone. The best results were obtained using FeMgAl LDH in the presence of the meta-chloroperoxybenzoic acid (mCPBA) and mixed oxide FeMgAl LDH-C in the presence of H₂O₂. In terms of nopinone yield, SnFeMgAl(Cl−)-C proved to be the best catalyst, which also had the highest proportion of acid and basic active sites among all the catalysts investigated.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10401 - Organic chemistry

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Applied Clay Science

ISSN

0169-1317

e-ISSN

0169-1317

Svazek periodika

233

Číslo periodika v rámci svazku

2023

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

106840

Kód UT WoS článku

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EID výsledku v databázi Scopus

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