Oleylamine Aging of PtNi Nanoparticles Giving Enhanced Functionality for the Oxygen Reduction Reaction
Gerard M. Leteba, Yi‐Chi Wang, Thomas J. A. Slater, Rongsheng Cai, Conor Byrne, C.P. Race, David R. G. Mitchell, Pieter Levecque, Neil P. Young, Stuart M. Holmes, Alex S. Walton, Angus I. Kirkland, Sarah J. Haigh, Candace Lang
Abstract
. We show that the modified atomic nanostructures catalytically outperform the original PtNi rhombic dodecahedral particles by more than two-fold and also yield improved cycling durability. Their functionality for the ORR far exceeds commercially available Pt/C nanoparticle electrocatalysts, both in terms of mass-specific activities (up to a 25-fold increase) and intrinsic area-specific activities (up to a 27-fold increase).
Topics & Concepts
OleylamineNanoparticleDodecahedronMaterials scienceNanotechnologyDopantFacetingNanostructureChemical engineeringOxygen reduction reactionDispersityCatalysisParticle sizeChemistryCrystallographyElectrochemistryDopingPhysical chemistryElectrodeOrganic chemistryPolymer chemistryEngineeringOptoelectronicsElectrocatalysts for Energy ConversionFuel Cells and Related MaterialsElectrochemical Analysis and Applications