On the interface electron transport problem of highly active IrO <sub> <i>x</i> </sub> catalysts
Jeesoo Park, Dong Wook Lee, Jonghyun Hyun, Ho‐Jin Lee, Euntaek Oh, Kyunghwa Seok, Gisu Doo, Hee‐Tak Kim
Abstract
Electron transport resistance increases with small iridium oxide catalysts due to ionomer-induced pinch-off effect at the catalyst layer and porous transport layer interface. Larger catalyst domains reduce resistance and improve performance.
Topics & Concepts
CatalysisInterface (matter)ElectronElectron transport chainMaterials scienceChemical engineeringChemistryComposite materialPhysicsEngineeringOrganic chemistryBiochemistryCapillary actionCapillary numberQuantum mechanicsCatalytic Processes in Materials ScienceElectron and X-Ray Spectroscopy TechniquesAdvancements in Solid Oxide Fuel Cells