Impact of Transition Metals and Electrocatalyst Layer Thickness on the Pt‐Based Cathodes of Proton Exchange Membrane Fuel Cells – Do Multimetallic Electrocatalysts Necessarily Yield an Improved Performance? (Adv. Energy Mater. 25/2025)
Year: 2025
Type: article
Abstract: Proton Exchange Membrane Fuel Cells Nonnoble transition-metals (TMs) in PtCuNi/C catalysts have a dual influence in proton-exchange membrane fuel cell cathode catalyst layer. While TMs act as a “sacrificial component” of PtCuNi/C, inhibiting Pt dissolution from the PtMx nanoparticles bearing the active sites, they promote the formation of separate catalysts and ionomer domains in the catalyst layer, inhibiting the interactions with the hydrophobic polytetrafluoroethylene backbones of the ionomer; this is detrimental to mass-transport phenomena that are crucial to minimize the overall proton exchange membrane fuel cell overpotential at large current densities. More in article number 2403212, Marian Chatenet and co-workers.
Source: Advanced Energy Materials
Institutions: Institut polytechnique de Grenoble, Centre National de la Recherche Scientifique, Université Savoie Mont Blanc, Université Grenoble Alpes, Laboratoire Énergies & Mécanique Théorique et Appliquée, Université de Lorraine, University of Padua, National Interuniversity Consortium of Materials Science and Technology, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Laboratoire d’Innovation pour les Technologies des Énergies Nouvelles et les nanomatériaux, CEA Grenoble, University of Warsaw
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4411900166