Abstract

Atomic Regulation of PGM Electrocatalysts for the Oxygen Reduction Reaction

Author(s): Menghao Chen

The Oxygen Reduction Reaction (ORR) occurs at the solid/electrolyte interface in a heterogeneous regime during operation. At a particular voltage, the electron can deplete the oxygen in the electrolyte as well as other species. Each intermediate species from the appropriate sub-reaction step has a different sensitivity to the catalytic structure, which affects the microkinetics and the mechanism that results.