In-situ characterization of the thermal treatment of Zn-Al hydrotalcites with respect to the formation of Zn/Al mixed oxide active in aldol condensation of furfural

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912367" target="_blank" >RIV/00216275:25310/18:39912367 - isvavai.cz</a>
Alternative codes found
RIV/62243136:_____/18:N0000073 RIV/00216208:11320/18:10388402
Result on the web
<a href="http://dx.doi.org/10.1016/j.clay.2018.02.024" target="_blank" >http://dx.doi.org/10.1016/j.clay.2018.02.024</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.clay.2018.02.024" target="_blank" >10.1016/j.clay.2018.02.024</a>

Result language
angličtina
Original language name
In-situ characterization of the thermal treatment of Zn-Al hydrotalcites with respect to the formation of Zn/Al mixed oxide active in aldol condensation of furfural
Original language description
Manuscript firstly describes the transformation of Zn-Al hydrotalcites into the appropriate Zn-Al mixed oxides during their thermal treatment up to 1000 degrees C. In detail, the structure, composition, morphology and growth of ZnO and ZnAl2O4 phases are analysed by using of TGA, in-situ XRD and in-situ diffuse reflectance UV-vis spectroscopy. Secondly, composition (XRF), structure (XRD), texture (N-2 adsorption) and acid-base properties (TPD-NH3, TPD-CO2) of Zn-Al mixed oxides prepared by thermal treatment of Zn-Al hydrotalcites at 400 degrees C are described. Zn-Al mixed oxides are studied with respect to their utilization in the aldol condensation of furfural with acetone. Manuscript defines the region of the ZnO phase formation and their role on textural, structural, acid-base and catalytic properties of Zn-Al mixed oxides formed by thermal treatment of hydrotalcites. High values of the conversion of furfural well correlated with the low values of ZnO crystallite size and high values of the specific surface area. The contribution of acid-base properties could not be discussed, as studied mixed oxides exhibited approximately the same amount and strength of basic sites.
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
20501 - Materials engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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