CATALYST COMPRISING PT, NI, AND TA

CATALYST COMPRISING PT, NI, AND TA

Catalysts comprising nanostructured elements comprising microstructured whiskers having an outer surface at least partially covered by a catalyst material comprising at least 90 atomic percent collectively Pt, Ni, and Ta, wherein the Pt is present in a range from 32.0 to 35.7 atomic percent, the Ni...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: STEINBACH, Andrew J. L, LUOPA, Sean M, HAUG, Andrew T, THOMA, Grant M, HESTER, Amy E, LEWINSKI, Krzysztof A
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:Catalysts comprising nanostructured elements comprising microstructured whiskers having an outer surface at least partially covered by a catalyst material comprising at least 90 atomic percent collectively Pt, Ni, and Ta, wherein the Pt is present in a range from 32.0 to 35.7 atomic percent, the Ni is present in a range from 57.2 to 64.0 atomic percent, and the Ta is present in a range from 0.26 to 10.8 atomic percent, and wherein the total atomic percent of Pt, Ni, and Ta equals 100. Catalyst described herein are useful, for example, in fuel cell membrane electrode assemblies.