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Supportless Pt and PtPd Nanotubes as Electrocatalysts for Oxygen-Reduction Reactions

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  • This work was financially supported by the Department of Energy, the Pacific Fuel Cell Corp., and a UC Discovery Grant. We thank Dr. R. R. Adzic of Brookhaven National Laboratory for helpful discussion and encouragement.

Abstract

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Staying power: A new class of cathode catalysts based on supportless Pt (see picture, left) and PtPd nanotubes (NTs) is introduced. These materials have remarkable durability (right; CV=cyclic voltammetry, ECSA=electrochemical surface area) and high catalytic activity. They have the potential to circumvent most of the degradation pathways of current Pt/C and Pt-black catalysts.

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