Continuous-flow hydrogenation of nitrocyclohexane toward value-added products with CuZnAl hydrotalcite derived materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F21%3AN0000015" target="_blank" >RIV/62243136:_____/21:N0000015 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S0926860X21001484?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0926860X21001484?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcata.2021.118134" target="_blank" >10.1016/j.apcata.2021.118134</a>

Result language
angličtina
Original language name
Continuous-flow hydrogenation of nitrocyclohexane toward value-added products with CuZnAl hydrotalcite derived materials
Original language description
Herein, catalytic performance of two CuZnAl hydrotalcite derived materials with different Cu content was investigated in continuous hydrogenation of nitrocyclohexane in liquid phase. We have shown that catalytic behavior of these materials depends strongly on Cu content. Activation of the catalyst with lower Cu loading by calcination at 773 K and reduction in 10 %H2/Ar at 673 K led to formation of mainly CuZn alloys surrounded by ZnO phase - highly selective for cyclohexanone (crucial for nylon production). On the other hand, activation of hydrotalcite based material with higher Cu content led to formation of Cu-ZnO core-shell structure with larger Cu nanoparticles - efficient in production of cyclohexylamine – an essential building block in pharmaceutical manufacturing. The proper interpretation of the catalytic results was supported by CuZnAl physicochemical characterization using physisorption analysis, TGA, ICP OES, TPR, H2-TPD, NH3-TPD, CO2-TPD, XRD, including in-situ XPS and TEM measurements.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20400 - Chemical engineering

Project
<a href="/en/project/LM2018119" target="_blank" >LM2018119: Catalytic processes for efficient utilization of carbonaceous energy raw materials</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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