| Autor: |
Zana A; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark.; Department of Chemistry and Biochemistry, University of Bern , Bern 3012, Switzerland., Wiberg GKH; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark.; 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.; School of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266000, China., Østergaard T; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark., Rossmeisl J; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark., Arenz M; Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark.; Department of Chemistry and Biochemistry, University of Bern , Bern 3012, Switzerland. |
| Abstrakt: |
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. |
