A Rechargeable Hydrogen Battery Based on Ru Catalysis. Issue 27 (6th May 2014)

• Record Type: Journal Article
• Authors: Hsu, Shih‐Fan; Rommel, Susanne; Eversfield, Philipp; Muller, Keven; Klemm, Elias; Thiel, Werner R.; Plietker, Bernd
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 27(2014)
• Page Start: 7074
• Page End: 7078
• Publication Date: 2014-05-06
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201310972
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Apart from energy generation, the storage and liberation of energy are among the major problems in establishing a sustainable energy supply chain. Herein we report the development of a rechargeable H₂ battery which is based on the principle of the Ru‐catalyzed hydrogenation of CO₂ to formic acid (charging process) and the Ru‐catalyzed decomposition of formic acid to CO₂ and H₂ (discharging process). Both processes are driven by the same catalyst at elevated temperature either under pressure (charging process) or pressure‐free conditions (discharging process). Up to five charging–discharging cycles were performed without decrease of storage capacity. The resulting CO₂/H₂ mixture is free of CO and can be employed directly in fuel‐cell technology.</p> </abstract>