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Accessing the Inaccessible: Analyzing the Oxygen Reduction Reaction in the Diffusion Limit.
Zana, Alessandro; Wiberg, Gustav K H; Deng, Yu-Jia; Østergaard, Thomas; Rossmeisl, Jan; Arenz, Matthias.
Affiliation
  • Zana A; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark.
  • Wiberg GKH; Department of Chemistry and Biochemistry, University of Bern , Bern 3012, Switzerland.
  • Deng YJ; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark.
  • Østergaard T; Department of Chemistry and Biochemistry, University of Bern , Bern 3012, Switzerland.
  • Rossmeisl J; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark.
  • Arenz M; School of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266000, China.
ACS Appl Mater Interfaces ; 9(44): 38176-38180, 2017 Nov 08.
Article in En | MEDLINE | ID: mdl-29063766
ABSTRACT
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.
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Full text: 1 Database: MEDLINE Language: En Year: 2017 Type: Article
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Full text: 1 Database: MEDLINE Language: En Year: 2017 Type: Article