Enhancement of the Activity for the Oxygen Reduction Reaction on Well-defined Single Crystal Electrodes of Pt by Hydrophobic Species
Nagahiro Hoshi, Masashi Nakamura
Abstract
Abstract The activity for the oxygen reduction reaction (ORR), which is the reaction at the air electrode of fuel cells, depends on the surface structure of the electrode markedly. This review summarizes the effects of hydrophobic species on the activity for the ORR on single crystal electrodes of Pt. We have examined the effects of aliphatic and aromatic molecules on the ORR. Structural effects on the increase of the activity and the factors of the enhancement are discussed.
Topics & Concepts
ChemistryElectrodeOxygen reduction reactionOxygenMoleculeSingle crystalOxygen reductionInorganic chemistryCombinatorial chemistryPhotochemistryOrganic chemistryCrystallographyElectrochemistryPhysical chemistryElectrocatalysts for Energy ConversionElectrochemical Analysis and ApplicationsFuel Cells and Related Materials