On the electrocatalytical oxygen reduction reaction activity and stability of quaternary RhMo-doped PtNi/C octahedral nanocrystals
Elisabeth Hornberger, Malte Klingenhof, Shlomi Polani, Paul Paciok, Attila Kormányos, Raphaël Chattot, Katherine E. MacArthur, Xingli Wang, Lujin Pan, Jakub Drnec, Serhiy Cherevko, Marc Heggen, Rafal E. Dunin‐Borkowski, Peter Strasser
Abstract
wide angle X-ray spectroscopy (WAXS), and on-line scanning flow cell inductively coupled plasma mass spectrometry (SFC-ICP-MS). Our studies show that doping PtNi octahedral catalysts with small amounts of Rh and Mo suppresses detrimental Pt diffusion and thus offers an attractive new family of shaped Pt alloy catalysts for deployment in PEMFC cathode layers.
Topics & Concepts
Bimetallic stripCatalysisProton exchange membrane fuel cellMaterials scienceScanning transmission electron microscopyChemical engineeringCathodeDopantNanocrystalInorganic chemistryMetalNanotechnologyDopingChemistryTransmission electron microscopyPhysical chemistryMetallurgyEngineeringOptoelectronicsBiochemistryElectrocatalysts for Energy ConversionFuel Cells and Related MaterialsElectrochemical Analysis and Applications