Carbon Dioxide Hydrogenation to Formic Acid with Self‐Separating Product and Recyclable Catalyst Phase

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Abstract: The homogeneously catalyzed hydrogenation of carbon dioxide to formic acid is a promising route for carbon dioxide utilization and power‐to‐X concepts. Separation of the product and the catalyst under retention of the performance of the catalyst remains a major challenge, however. Herein, we present a Ru‐phosphine catalyzed reaction system comprising only a hydrophobic solvent as the catalyst phase and N‐methyldiethanolamine as a base. The formation of formic acid causes a spontaneous separation of the monophasic reaction mixture into a pure formic acid/amine product and a recyclable catalyst phase. By optimizing the reaction conditions, a turnover number of 1590 in a single reaction and a total turnover number of 5590 after four recycling runs were achieved.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Carbon Dioxide Hydrogenation to Formic Acid with Self‐Separating Product and Recyclable Catalyst Phase ; day:31 ; month:08 ; year:2022 ; extent:1
ChemCatChem ; (31.08.2022) (gesamt 1)

Creator: Ehmann, Kira Ruth
Nisters, Arne
Vorholt, Andreas J.
Leitner, Walter

DOI: 10.1002/cctc.202200892

URN: urn:nbn:de:101:1-2022090115134195949686

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:24 AM CEST

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