Platinum-alloy nanostructured thin film catalysts for the oxygen reduction reaction.

Journal Article · Fri Dec 31 23:00:00 EST 2010 · Electrochimica Acta

DOI:https://doi.org/10.1016/j.electacta.2011.07.063· OSTI ID:1029454

van der Vliet, D; Wang, C; Debe, M; Atanasoski, R; Markovic, N M; Stamenkovic, V R ^[1]

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1. Materials Science Division

In an effort to study advanced catalytic materials for the oxygen reduction reaction (ORR), a number of metallic alloy nanostructured thin film (NSTF) catalysts have been characterized by rotating disk electrode (RDE). Optimal loadings for the ORR and activity enhancement compared to conventional carbon supported nanoparticles (Pt/C) were established. The most efficient catalyst was found to be PtNi alloy with 55 wt% of Pt. The enhancement in specific activity is more than one order of magnitude, while the improvement factor in mass activity is 2.5 compared to Pt/C. Further lowering of the platinum to nickel ratio in NSTF catalysts did not lead to increased mass activity values.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; EE
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1029454
• Report Number(s): ANL/MSD/JA-70651
• Journal Information: Electrochimica Acta, Journal Name: Electrochimica Acta Journal Issue: 24 Vol. 56; ISSN 0013-4686; ISSN ELCAAV
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ALLOYS
CARBON
CATALYSTS
ELECTRODES
NICKEL
OXYGEN
PLATINUM
REDUCTION
THIN FILMS