Communication—Non-Fluorous, Hydrocarbon PEMFCs, Generating > 1 W cm <sup>−2</sup> Power
Emmanuel Balogun, Michael Adamski, Steven Holdcroft
Abstract
Highly performing, sulfo-phenylated poly(phenylene)sPPB-H + solid polymer electrolyte is reported as a complete substitute for incumbent PFSA materials in PEMFCs, serving both as the electrode catalyst binder, and membrane. Power densities of 1.1 W cm −2 are achieved using H 2 /O 2 when 15 wt% ionomer content is present in the catalyst layer. This represents a 25% increase in performance over previously reported values (up to 0.8 W cm −2 ) for fully non-fluorous, hydrocarbon solid polymer electrolytes, and the first to demonstrate >1 W cm −2 .
Topics & Concepts
HydrocarbonElectrolytePolymerIonomerCatalysisElectrodePhenyleneMembraneChemical engineeringMaterials scienceChemistryPolymer chemistryOrganic chemistryCopolymerPhysical chemistryBiochemistryEngineeringFuel Cells and Related MaterialsElectrocatalysts for Energy ConversionAdvanced battery technologies research