CATALYST

Catalyst comprising an Ir layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ir layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAUG, Andrew T, THOMA, Grant M, HESTER, Amy E, STEINBACH, Andrew J.L, BEDOYA, Cedric, LEWINSKI, Krzysztof A
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Catalyst comprising an Ir layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ir layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ir are present in an atomic ratio in a range from 0.01:1 to 10:1. Catalysts described herein are useful, for example, in fuel cell membrane electrode assemblies.