Reconsidering the Benchmarking Evaluation of Catalytic Activity in Oxygen Reduction Reaction.

ABSTRACT: The sluggish kinetics of the oxygen reduction reaction (ORR) on electrocatalysts represents a major obstacle in the development of fuel cell technology. A tremendous amount of work has reported the increasing ORR activity for catalysts. Nevertheless, when applied to practical Membrane Electrode Assembly (MEA, an assembled stack of a proton exchange membrane fuel cell) configuration, the high-performance catalysts on the rotating disk electrode (RDE) may not display the same high activity as in the lab-scale tests. This led us to reexamine the ORR evaluation based on the RDE technique. With the development of high active electrocatalysts, it may become significant to determine the reasonable kinetic current at a conventional fixed potential approaching the limited current by using the Koute

SUBMITTER: Chen W 

PROVIDER: S-EPMC7516295 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature