Electrochemical CO2 Reduction - A Critical View on Fundamentals, Materials and Applications

Durst, Julien; Rudnev, Alexander; Dutta, Abhijit; Fu, Yongchun; Herranz, Juan; Kaliginedi, Veera Bhadra Rao; Kuzume, Akiyoshi; Permyakova, Anastasia A; Paratcha, Yohan; Broekmann, Peter; Schmidt, Thomas J. (2015). Electrochemical CO2 Reduction - A Critical View on Fundamentals, Materials and Applications. CHIMIA, 69(12), pp. 769-776. Schweizerische Chemische Gesellschaft 10.2533/chimia.2015.769

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The electrochemical reduction of CO2 has been extensively studied over the past decades. Nevertheless, this topic has been tackled so far only by using a very fundamental approach and mostly by trying to improve kinetics and selectivities toward specific products in half-cell configurations and liquid-based electrolytes. The main drawback of this approach is that, due to the low solubility of CO2 in water, the maximum CO2 reduction current which could be drawn falls in the range of 0.01–0.02 A cm–2. This is at least an order of magnitude lower current density than the requirement to make CO2-electrolysis a technically and economically feasible option for transformation of CO2 into chemical feedstock or fuel thereby closing the CO2 cycle. This work attempts to give a short overview on the status of electrochemical CO2 reduction with respect to challenges at the electrolysis cell as well as at the catalyst level. We will critically discuss possible pathways to increase both operating current density and conversion efficiency in order to close the gap with established energy conversion technologies.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry
08 Faculty of Science > Other Institutions > Teaching Staff, Faculty of Science

UniBE Contributor:

Rudnev, Alexander; Dutta, Abhijit; Fu, Yongchun; Kaliginedi, Veera Bhadra Rao; Kuzume, Akiyoshi and Broekmann, Peter

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry
500 Science

ISSN:

0009-4293

Publisher:

Schweizerische Chemische Gesellschaft

Language:

English

Submitter:

Beatrice Niederhauser

Date Deposited:

04 Feb 2016 08:04

Last Modified:

02 Dec 2016 02:30

Publisher DOI:

10.2533/chimia.2015.769

BORIS DOI:

10.7892/boris.75085

URI:

https://boris.unibe.ch/id/eprint/75085

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