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- W2064048367 abstract "Pt-Cu/carbon black catalysts were prepared by an impregnation-reduction method followed by acid leaching. The structure and composition of Pt-Cu nanoparticles treated under different conditions were investigated by inductively coupled plasma atomic emission spectrometry, X-ray diffraction, and X-ray photoelectron spectroscopy. PtCu3 alloy formed upon annealing Pt-Cu/carbon black catalysts in H2. Acid leaching produced Pt-Cu nanoparticles consisting of Pt-skeleton surface structure and PtCu3 alloy core. The Pt-skeleton could be transformed to well-defined Pt-skin structure through further annealing the leached Pt-Cu nanoparticles in H2. Decorating the Pt-skin surfaces with Fe oxide nanopatches resulted in enhanced reactivity in the preferential oxidation of CO in excess H2. The tri-component Pt-Cu-Fe catalysts exhibited comparable activity to the bi-component Pt-Fe catalysts but used much less Pt." @default.
- W2064048367 created "2016-06-24" @default.
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- W2064048367 date "2013-11-01" @default.
- W2064048367 modified "2023-10-06" @default.
- W2064048367 title "Nanosized FeOx overlayers on Pt-skin surfaces for low temperature CO oxidation" @default.
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- W2064048367 doi "https://doi.org/10.1016/s1872-2067(12)60673-1" @default.
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