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
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/62243136:_____/18:N0000073 RIV/00216208:11320/18:10388402
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
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
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
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
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Applied Clay Science
ISSN
0169-1317
e-ISSN
—
Svazek periodika
157
Číslo periodika v rámci svazku
June
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
11
Strana od-do
8-18
Kód UT WoS článku
000430629500002
EID výsledku v databázi Scopus
2-s2.0-85044637592