The synthesis of Zn-Al hydrotalcites under different conditions and testing in aldol condensation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F17%3AN0000012" target="_blank" >RIV/62243136:_____/17:N0000012 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62243136:_____/17:N0000002 RIV/00216275:25310/17:39902338

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The synthesis of Zn-Al hydrotalcites under different conditions and testing in aldol condensation

Popis výsledku v původním jazyce

The Zn-Al hydrotalcites (materials with layered structure) with constant molar ratio of Zn/Al 2:1, were synthesized by co-precipitation method under different reaction conditions such as pH, concentration of ions, temperature throughout co-precipitation, intensity of stirring, etc. The mixed oxides were formed from hydrotalcites by calcination at 450 °C. All synthesized materials were characterized by X-ray diffraction, thermogravimetric analysis and specific surface area. The influence of the synthesis conditions on the crystallite size and specific surface area were studied. The formed of hydrotalcites as well as mixed oxides was confirmed X-ray diffraction. The chosen mixed oxides were rehydrated, which caused restoration of the layered structure. The mixed oxides and rehydrated mixed oxides were tested in the aldol condensation of furfural. It was found that the rehydration decreases the conversion of furfural for all rehydrated mixed oxides.

Název v anglickém jazyce

The synthesis of Zn-Al hydrotalcites under different conditions and testing in aldol condensation

Popis výsledku anglicky

The Zn-Al hydrotalcites (materials with layered structure) with constant molar ratio of Zn/Al 2:1, were synthesized by co-precipitation method under different reaction conditions such as pH, concentration of ions, temperature throughout co-precipitation, intensity of stirring, etc. The mixed oxides were formed from hydrotalcites by calcination at 450 °C. All synthesized materials were characterized by X-ray diffraction, thermogravimetric analysis and specific surface area. The influence of the synthesis conditions on the crystallite size and specific surface area were studied. The formed of hydrotalcites as well as mixed oxides was confirmed X-ray diffraction. The chosen mixed oxides were rehydrated, which caused restoration of the layered structure. The mixed oxides and rehydrated mixed oxides were tested in the aldol condensation of furfural. It was found that the rehydration decreases the conversion of furfural for all rehydrated mixed oxides.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20402 - Chemical process engineering

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)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Papers of University of Pardubice

ISSN

1211-5541

e-ISSN

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Svazek periodika

23

Číslo periodika v rámci svazku

květen

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

16

Strana od-do

129-144

Kód UT WoS článku

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EID výsledku v databázi Scopus

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