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Catalytic CO₂ esterification with ethanol for the production of diethyl carbonate using optimized CeO₂ as catalyst

Buchmann, Marco ; Lucas, Martin ; Rose, Marcus (2021)
Catalytic CO₂ esterification with ethanol for the production of diethyl carbonate using optimized CeO₂ as catalyst.
In: Catalysis Science & Technology, 11 (5)
doi: 10.1039/D0CY01793K
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

The direct conversion of (bio)ethanol and CO₂ is a promising route to diethyl carbonate (DEC) since both reactants are cheap and originate from renewable resources in bioethanol production. In this work we present a detailed characterization and correlation between catalyst synthesis parameters and catalytic activity of pure ceria for DEC formation. An interaction between surface acidity and basicity as well as sufficiently high specific surface area is required for optimal catalytic activity which is obtained by using urea as the precipitation agent. Catalytic activity towards DEC formation is increased when adding both cerium nitrate solution and aqueous ammonia solution in a controlled manner at a pH of 10 at 50 °C for precipitation. When combining temperature-programmed desorption (TPD) experiments and catalytic testing, mainly weak basic sites appear to be relevant for the DEC formation.

Typ des Eintrags: Artikel
Erschienen: 2021
Autor(en): Buchmann, Marco ; Lucas, Martin ; Rose, Marcus
Art des Eintrags: Bibliographie
Titel: Catalytic CO₂ esterification with ethanol for the production of diethyl carbonate using optimized CeO₂ as catalyst
Sprache: Englisch
Publikationsjahr: Mai 2021
Ort: London
Verlag: Royal Society of Chemistry
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Catalysis Science & Technology
Jahrgang/Volume einer Zeitschrift: 11
(Heft-)Nummer: 5
DOI: 10.1039/D0CY01793K
URL / URN: https://pubs.rsc.org/en/content/articlelanding/2021/cy/d0cy0...
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Kurzbeschreibung (Abstract):

The direct conversion of (bio)ethanol and CO₂ is a promising route to diethyl carbonate (DEC) since both reactants are cheap and originate from renewable resources in bioethanol production. In this work we present a detailed characterization and correlation between catalyst synthesis parameters and catalytic activity of pure ceria for DEC formation. An interaction between surface acidity and basicity as well as sufficiently high specific surface area is required for optimal catalytic activity which is obtained by using urea as the precipitation agent. Catalytic activity towards DEC formation is increased when adding both cerium nitrate solution and aqueous ammonia solution in a controlled manner at a pH of 10 at 50 °C for precipitation. When combining temperature-programmed desorption (TPD) experiments and catalytic testing, mainly weak basic sites appear to be relevant for the DEC formation.

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First published online: 07 Jan 2021

Fachbereich(e)/-gebiet(e): 07 Fachbereich Chemie
07 Fachbereich Chemie > Ernst-Berl-Institut
07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie
07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie II
Hinterlegungsdatum: 03 Mai 2021 05:52
Letzte Änderung: 22 Feb 2024 09:42
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