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

作者：Zana, Alessandro; Wiberg, Gustav K. H.; Deng, Yu-Jia; Ostergaard, Thomas; Rossmeisl, Jan; Arenz, Matthias^*

来源：ACS Applied Materials & Interfaces, 2017, 9(44): 38176-38180.

DOI：10.1021/acsami.7b13902

• oxygen reduction reaction
• fuel cells
• anion adsorption
• rotating disk electrode
• diffusion limited current
• adsorption isotherm
• computational modeling

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.

• 出版日期2017-11-8
• 单位青岛大学