PLATINUM ADLAYERED RUTHENIUM NANOPARTICLES, METHOD FOR PREPARING, AND USES THEREOF

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United States of America Patent

APP PUB NO 20150311556A1
SERIAL NO

14794307

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Abstract

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A superior, industrially scalable one-pot ethylene glycol-based wet chemistry method to prepare platinum-adlayered ruthenium nanoparticles has been developed that offers an exquisite control of the platinum packing density of the adlayers and effectively prevents sintering of the nanoparticles during the deposition process. The wet chemistry based method for the controlled deposition of submonolayer platinum is advantageous in terms of processing and maximizing the use of platinum and can, in principle, be scaled up straightforwardly to an industrial level. The reactivity of the Pt(31)-Ru sample was about 150% higher than that of the industrial benchmark PtRu (1:1) alloy sample but with 3.5 times less platinum loading. Using the Pt(31)-Ru nanoparticles would lower the electrode material cost compared to using the industrial benchmark alloy nanoparticles for direct methanol fuel cell applications.

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Patent Owner(s)

Patent OwnerAddress
GEORGETOWN UNIVERSITYWASHINGTON DC 20057

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DU, Bingchen Rockville, US 2 4
Tong, Yu Ye Gaithersburg, US 2 2

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