Understanding of the key properties of supported Cu-based catalysts and their influence on ester hydrogenolysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43922240" target="_blank" >RIV/60461373:22310/22:43922240 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22320/22:43922240 RIV/60461373:22350/22:43922240
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0920586121004429" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0920586121004429</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2021.09.039" target="_blank" >10.1016/j.cattod.2021.09.039</a>
Alternative languages
Result language
angličtina
Original language name
Understanding of the key properties of supported Cu-based catalysts and their influence on ester hydrogenolysis
Original language description
The application of Cr-free Cu-based catalysts in ester hydrogenolysis is a modern environmentally-friendly research approach. The comprehensive study of four supported Cu-based catalysts was performed using 8 wt% of Cu loaded on Al2O3, ZnO, TiO2 and ZrO2 supports by an impregnation method. Using XRD, H2-TPR, BET, pyridine-TPD, CO2-TPD and N2O-RFC methods, the effect of the support on the formation of Cu-nanoparticles was described. Al2O3 was evaluated as the support ensuring the highest nanoparticles dispersion, while Cu nanoparticles in Cu-TiO2 were liable to sintering. The catalysts were tested in dimethyl adipate hydrogenolysis, where the catalyst performance and activity (TOF) were evaluated and Cu-ZrO2 showed the best results. A correlation between the number of acid-base sites and the catalyst selectivity was revealed and the catalyst effect on the formation of various by-products was described. The intrinsic selectivity to hydrogenolysis products was found to decrease with the increasing acid-base character of the supports whereas the selectivity to transesterification and cyclization products increased. The hydrogenolysis activity was not a simple function of the number of the surface copper atoms, but it was affected by the support nature and its properties. © 2021 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
2022
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
397–399
Issue of the periodical within the volume
1 August 2022
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
173-181
UT code for WoS article
000810505500003
EID of the result in the Scopus database
2-s2.0-85116913730