Pt/C catalysts synthesized in a commercial particle atomic layer deposition system enabling improved durability in fuel cells
Fiona Pescher, Julian Stiegeler, Philipp A. Heizmann, Carolin Klose, Severin Vierrath, Matthias Breitwieser
Abstract
at 0.65 V) under application-relevant operation conditions (80 °C, 50% relative humidity). After 30 000 voltage cycles, conducted in accordance with the U.S. Department of Energy's accelerated catalyst degradation test, the ALD catalysts demonstrate up to 64% greater electrochemical active surface areas and superior retention of cell performance, with a 34% higher current density at 0.65 V, compared to the reference. Given the scalability of the commercial particle ALD system, these promising results encourage the use of particle ALD as a novel synthesis approach for fuel cell catalyst materials in the industry.
Topics & Concepts
DurabilityDispersityDissolutionCatalysisAtomic layer depositionChemical engineeringParticle (ecology)Materials scienceDeposition (geology)Layer (electronics)Fuel cellsParticle sizeNanotechnologyChemistryComposite materialPolymer chemistryOrganic chemistryPaleontologySedimentEngineeringOceanographyGeologyBiologyElectrocatalysts for Energy ConversionFuel Cells and Related MaterialsAdvancements in Solid Oxide Fuel Cells