Enhanced activity of Cu/SiO2 and Cu/ZrO2 catalysts in dimethyl adipate hydrogenolysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43924340" target="_blank" >RIV/60461373:22310/23:43924340 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22320/23:43924340 RIV/60461373:22350/23:43924340
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S092058612200284X" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S092058612200284X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2022.07.011" target="_blank" >10.1016/j.cattod.2022.07.011</a>
Alternative languages
Result language
angličtina
Original language name
Enhanced activity of Cu/SiO2 and Cu/ZrO2 catalysts in dimethyl adipate hydrogenolysis
Original language description
According to green chemistry principles, the process of ester hydrogenolysis is not sustainable. It is catalysed by Adkins CuCr2O3 catalyst that brings some environmental risks. Therefore, a design of new environmentally-friendly hydrogenolysis catalysts is highly desired. We investigated eight catalysts prepared using two methods - incipient wetness impregnation (IWI) and chemisorption-hydrolysis (CH) - with a combination of two types of supports - ZrO2 and two types of SiO2. The preparation method affects significantly the dispersion of the resulting copper phase in case of SiO2, and CH is essential to obtain very small and active Cu particles. On the other hand, when ZrO2 is used, the most critical aspect is its specific surface area, and a highly dispersed copper phase is formed on the high specific surface area sample, both for CH and IWI preparation methods. All eight prepared catalysts were investigated in dimethyl adipate hydrogenolysis to compare their activity and selectivity. Nice correlation between support – synthesis method – activity was found. ZrO2-based catalysts and CH resulted in more active catalysts compared to SiO2-based ones and IWI. Interestingly, Cu/SiO2 catalyst prepared by CH was more selective to the main reaction product hexane-1,6-diol due to the presence of acid sites. In this paper, the catalyst hydrogenolysis activity was increased twice, compared to our previous experiments using Cu/ZnO prepared by deposition-precipitation. © 2022 Elsevier B.V.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
<a href="/en/project/GA20-28093S" target="_blank" >GA20-28093S: Supported Cu-based catalysts for hydrogenolysis</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CATALYSIS TODAY
ISSN
0920-5861
e-ISSN
1873-4308
Volume of the periodical
424
Issue of the periodical within the volume
1. prosinec 2023
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
113843
UT code for WoS article
001062197600001
EID of the result in the Scopus database
2-s2.0-85135074909