Study of promoted Cu/ZnO and Cu/ZrO2 catalysts for dimethyl adipate hydrogenolysis
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929416" target="_blank" >RIV/60461373:22310/24:43929416 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/60461373:22320/24:43929416
Výsledek na webu
<a href="https://pubs.rsc.org/en/content/articlehtml/2024/cy/d4cy00686k" target="_blank" >https://pubs.rsc.org/en/content/articlehtml/2024/cy/d4cy00686k</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/D4CY00686K" target="_blank" >10.1039/D4CY00686K</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Study of promoted Cu/ZnO and Cu/ZrO2 catalysts for dimethyl adipate hydrogenolysis
Popis výsledku v původním jazyce
Two supports (ZnO, ZrO2) and four promoters (Al2O3, ZnO, CoOx, NiO) were investigated to design environmentally-friendly Cu-based hydrogenolysis catalysts. Both catalyst characterization and activity in dimethyl adipate hydrogenolysis were described. While ZrO2 improved the reducibility of CuO nanoparticles, these particles were less stable under reaction conditions. ZnO provided better stabilization and reduced coke formation. CoOx used as a promoter, increased the surface availability of dissociated H2 and stabilized Cu nanoparticles with a high surface area. Conversely, Al2O3 or NiO promoters improved neither catalyst performance nor selectivity due to the higher number of acid-base sites. The essential role of ZnO, whether used as support or a single promoter, was attributed to Cu-ZnO synergy that enhanced the activity in dimethyl adipate hydrogenolysis and improved desired selectivity to hexane-1,6-diol. Overall, the hydrogenolysis activity (TOFH) was 5-times higher for ZnO-supported catalysts.
Název v anglickém jazyce
Study of promoted Cu/ZnO and Cu/ZrO2 catalysts for dimethyl adipate hydrogenolysis
Popis výsledku anglicky
Two supports (ZnO, ZrO2) and four promoters (Al2O3, ZnO, CoOx, NiO) were investigated to design environmentally-friendly Cu-based hydrogenolysis catalysts. Both catalyst characterization and activity in dimethyl adipate hydrogenolysis were described. While ZrO2 improved the reducibility of CuO nanoparticles, these particles were less stable under reaction conditions. ZnO provided better stabilization and reduced coke formation. CoOx used as a promoter, increased the surface availability of dissociated H2 and stabilized Cu nanoparticles with a high surface area. Conversely, Al2O3 or NiO promoters improved neither catalyst performance nor selectivity due to the higher number of acid-base sites. The essential role of ZnO, whether used as support or a single promoter, was attributed to Cu-ZnO synergy that enhanced the activity in dimethyl adipate hydrogenolysis and improved desired selectivity to hexane-1,6-diol. Overall, the hydrogenolysis activity (TOFH) was 5-times higher for ZnO-supported catalysts.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20704 - Energy and fuels
Návaznosti výsledku
Projekt
<a href="/cs/project/GA20-28093S" target="_blank" >GA20-28093S: Nosičové hydrogenolýzní katalyzátory na bázi mědi</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2024
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Catalysis Science & Technology
ISSN
2044-4753
e-ISSN
2044-4761
Svazek periodika
14
Číslo periodika v rámci svazku
18
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
11
Strana od-do
5364-5374
Kód UT WoS článku
001284942600001
EID výsledku v databázi Scopus
2-s2.0-85200587350