Accessing the Inaccessible: Analyzing the Oxygen Reduction Reaction in the Diffusion Limit

Zana, Alessandro; Wiberg, Gustav; Deng, Y. J.; Ostergaard, T.; Rossmeisl, J.; Arenz, Matthias (2017). Accessing the Inaccessible: Analyzing the Oxygen Reduction Reaction in the Diffusion Limit. ACS applied materials & interfaces, 9(44), pp. 38176-38180. American Chemical Society 10.1021/acsami.7b13902

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The oxygen reduction reaction (ORR) is one of the key processes in electrocatalysis. In this communication, the ORR is studied using a rotating disk electrode (RDE). In conventional work, this method limits the potential region where kinetic (mass transport free) reaction rates can be determined to a narrow range. Here, we applied a new approach, which allows us to analyze the ORR rates in the diffusion-limited potential region of high mass transport. Thus, for the first time, the effect of anion adsorption on the ORR can be studied at such potentials.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Zana, Alessandro; Wiberg, Gustav and Arenz, Matthias

Subjects:

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

ISSN:

1944-8252

Publisher:

American Chemical Society

Language:

English

Submitter:

Matthias Arenz

Date Deposited:

17 Apr 2018 08:01

Last Modified:

17 Apr 2018 08:01

Publisher DOI:

10.1021/acsami.7b13902

Related URLs:

Web of Science ID:

000415140800005

Additional Information:

Notes: Fm6dx Times Cited:0 Cited References Count:19 Date: 2017

Uncontrolled Keywords:

oxygen reduction reaction fuel cells anion adsorption rotating disk electrode diffusion limited current adsorption isotherm computational modeling disk electrode measurements catalysts carbon charge

BORIS DOI:

10.7892/boris.111606

URI:

https://boris.unibe.ch/id/eprint/111606

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