Chemical Equilibria in Formic Acid/Amine‐CO2 Cycles under Isochoric Conditions using a Ruthenium(II) 1, 2‐Bis(diphenylphosphino)ethane Catalyst. Issue 1 (7th November 2013)

• Record Type: Journal Article
• Authors: Sordakis, Katerina; Beller, Matthias; Laurenczy, Gábor
• Is Part Of: ChemCatChem. Volume 6:Issue 1(2014:Jan.)
• Page Start: 96
• Page End: 99
• Publication Date: 2013-11-07
• Subjects: Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201300740
• Languages: English
• ISSNs: 1867-3880

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The equilibrium position in formic acid/amine–CO₂ systems has been examined as a function of pressure and temperature under isochoric conditions. The homogeneous ruthenium(II)‐1, 2‐bis(diphenylphosphino)ethane catalyst was active in both reactions, that is, in formic acid cleavage producing pure hydrogen and CO₂, as well as in carbon dioxide hydrogenation under basic conditions. High yields of formic acid dehydrogenation into H₂ and CO₂ are favored by low gas pressures and/or high temperatures, and H₂ uptake is possible at elevated H₂–CO₂ pressures. These results take us one step closer to the realization of a practical H₂ storage–discharge device.</p> </abstract>