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Catalyst Development for Water/CO2 Co-electrolysis

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Herein, we discuss recent research activities on the electrochemical water/CO2 co-electrolysis at the Department of Chemistry and Biochemistry of the University of Bern (Arenz and Broekmann research groups). For the electrochemical conversion of the greenhouse gas CO2 into products of higher value catalysts for two half-cell reactions need to be developed, i.e. catalysts for the reductive conversion of CO2 (CO2RR) as well as catalysts for the oxidative splitting of water (OER: Oxygen Evolution Reaction). In research, the catalysts are often investigated independently of each other as they can later easily be combined in a technical electrolysis cell. CO2RR catalysts consist of abundant materials such as copper and silver and thus mainly the product selectivity of the respective catalyst is in focus of the investigation. In contrast to that, OER catalysts (in acidic conditions) mainly consist of precious metals, e.g. Ir, and therefore the minimization of the catalytic current per gram Ir is of fundamental importance.
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Keywords: AG FOAM; CO2RR; Ir NPs CATALYST; OER

Document Type: Research Article

Affiliations: 1: Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern 2: Department of Chemistry, University of Copenhagen, Universitets parken 5, Copenhagen 2100 Denmark 3: Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern;, Email: [email protected] 4: Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern;, Email: [email protected]

Publication date: September 1, 2019

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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