(V)/Hydrotalcite, (V)/Al203, (V)/TiO2 and (V)/SBA-15 catalysts for the partial oxidation of ethanol to acetaldehyde
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39902154" target="_blank" >RIV/00216275:25310/16:39902154 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.molcata.2016.04.024" target="_blank" >http://dx.doi.org/10.1016/j.molcata.2016.04.024</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molcata.2016.04.024" target="_blank" >10.1016/j.molcata.2016.04.024</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
(V)/Hydrotalcite, (V)/Al203, (V)/TiO2 and (V)/SBA-15 catalysts for the partial oxidation of ethanol to acetaldehyde
Popis výsledku v původním jazyce
Vanadium-based catalysts have been investigated in the partial oxidation of ethanol to acetaldehyde with the aim of understanding relationship between vanadium structure and acetaldehyde productivity. Hydrotalcite, Al2O3, TiO2 and SBA-15 with and without a 5% of vanadium content were prepared to study the oxidative dehydrogenation of ethanol. They were characterized by XRF, TPR (H-2), NH3-TPD, CO2-TPD, RAMAN, UV-vis, Nitrogen physisorption, XRD and SEM. The most easily reducible catalysts (as determined by TPR) were the most active ones. In the low temperature region (150 degrees C), the most active catalyst was the V/TiO2 which presented stable activity in the production of acetaldehyde up to TOS = 200 h. On the contrary, in the high temperature region (250 degrees C), the most active catalyst was the V/Al(2)O(3)catalyst. The most promising result was obtained over V/TiO2 catalyst that afforded a total ethanol conversion of 60.4%wt. and a selectivity to acetaldehyde of 76.2%wt. at TOS = 164 h and T= 150 degrees C. Also, hydrotalcite was tested for the first time for this type of reaction providing a conversion lower than 7%wt. with a selectivity of 100%wt. to acetaldehyde at T= 150-225 degrees C.
Název v anglickém jazyce
(V)/Hydrotalcite, (V)/Al203, (V)/TiO2 and (V)/SBA-15 catalysts for the partial oxidation of ethanol to acetaldehyde
Popis výsledku anglicky
Vanadium-based catalysts have been investigated in the partial oxidation of ethanol to acetaldehyde with the aim of understanding relationship between vanadium structure and acetaldehyde productivity. Hydrotalcite, Al2O3, TiO2 and SBA-15 with and without a 5% of vanadium content were prepared to study the oxidative dehydrogenation of ethanol. They were characterized by XRF, TPR (H-2), NH3-TPD, CO2-TPD, RAMAN, UV-vis, Nitrogen physisorption, XRD and SEM. The most easily reducible catalysts (as determined by TPR) were the most active ones. In the low temperature region (150 degrees C), the most active catalyst was the V/TiO2 which presented stable activity in the production of acetaldehyde up to TOS = 200 h. On the contrary, in the high temperature region (250 degrees C), the most active catalyst was the V/Al(2)O(3)catalyst. The most promising result was obtained over V/TiO2 catalyst that afforded a total ethanol conversion of 60.4%wt. and a selectivity to acetaldehyde of 76.2%wt. at TOS = 164 h and T= 150 degrees C. Also, hydrotalcite was tested for the first time for this type of reaction providing a conversion lower than 7%wt. with a selectivity of 100%wt. to acetaldehyde at T= 150-225 degrees C.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CF - Fyzikální chemie a teoretická chemie
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GA15-19780S" target="_blank" >GA15-19780S: Studium aktivních center nosičových vanadových katalyzátorů pro selektivní oxidaci etanolu</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Molecular Catalysis A: Chemical
ISSN
1381-1169
e-ISSN
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Svazek periodika
420
Číslo periodika v rámci svazku
August
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
12
Strana od-do
178-189
Kód UT WoS článku
000378366300022
EID výsledku v databázi Scopus
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