Correlating the morphological changes to electrochemical performance during carbon corrosion in polymer electrolyte fuel cells
Prantik Saha, Kaustubh Khedekar, Hanson Wang, Plamen Atanassov, Lei Cheng, S. Michael Stewart, Christina Johnston, Iryna V. Zenyuk
Abstract
Carbon corrosion in catalyst layer of PEFCs showed two phases: in first 500 AST cycles carbon corroded rapidly and catalyst layer thickness was lost, after that corrosion slowed down but a pore structure collapsed, increasing O 2 transport resistance.
Topics & Concepts
CorrosionElectrolyteMaterials scienceElectrochemistryCatalysisLayer (electronics)Carbon fibersChemical engineeringPolymerCarbon steelComposite materialElectrodeChemistryOrganic chemistryComposite numberEngineeringPhysical chemistryFuel Cells and Related MaterialsElectrocatalysts for Energy ConversionAdvanced battery technologies research