Towards efficient Cu/ZnO catalysts for ester hydrogenolysis: The role of synthesis method

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F21%3A43922239" target="_blank" >RIV/60461373:22320/21:43922239 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22350/21:43922239
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S092058612100420X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S092058612100420X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcata.2021.118320" target="_blank" >10.1016/j.apcata.2021.118320</a>

Result language
angličtina
Original language name
Towards efficient Cu/ZnO catalysts for ester hydrogenolysis: The role of synthesis method
Original language description
Cu/ZnO catalysts represent an environmentally friendly alternative to Adkins catalysts used for ester hydrogenolysis. Cu/ZnO are mostly synthesized by co-precipitation (COP); however, other synthesis methods may help to obtain small highly dispersed Cu crystallites advantageous for catalyst activity. A comparative study on the effect of synthesis method on Cu/ZnO catalysts properties and activity is missing. Thus, we synthesized 8 wt% Cu/ZnO catalysts by five methods (COP, deposition-precipitation (DP), chemisorption-hydrolysis (CH), incipient wetness (IWI) and wet impregnation (WI)), characterized and tested them in dimethyl adipate hydrogenolysis. The CH-prepared catalyst was prone to Cu sintering, which impaired its performance. IWI led to large Cu nanoparticles, pore blocking and poor catalytic performance. COP and DP resulted in the smallest Cu nanoparticles (13-14 nm), largest Cu surface area (3.9-4.2 m(2) g(cat)(-1)) and specific surface area (40-43 m(2) g(cat)(-1)) reflected in their superior catalytic activity making DP a good alternative to COP to prepare active Cu/ZnO catalysts.
Czech name
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Czech description
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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
20702 - Petroleum engineering (fuel, oils)

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)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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