Layered platinum on freestanding palladium nano-substrates for electrocatalytic applications and methods of making thereof
AssigneeGeorgia Tech Research Corporation
InventorsYounan Xia, Shuifen Xie, Sang-Il Choi, Xue Wang, Jinho Park, Lei Zhang
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Abstract
Core-shell nanostructures with platinum overlayers conformally coating palladium nano-substrate cores and facile solution-based methods for the preparation of such core-shell nanostructures are described herein. The obtained Pd@Pt core-shell nanocatalysts showed enhanced specific and mass activities towards oxygen reduction, compared to a commercial Pt/C catalyst.
Claims18
A core-shell nanostructure comprising a palladium nano-substrate conformally coated with between one and ten continuous uniform and smooth atomic overlayers of epitaxially deposited zero-valent platinum atoms over the whole surface of the palladium nano-substrate, wherein the palladium nano-substrate has a shape selected from the group consisting of cubic, concave cubic, tetrahedral, bipyramidal, octahedral, icosahedral, decahedral, rod, bar, and wire.
Dependencies are inferred from the claim text.