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• W2770295718 endingPage "7619" @default.
• W2770295718 startingPage "7613" @default.
• W2770295718 abstract "Predictable synthesis of bimetallic nanocrystals with spatially controlled metal distributions offers a versatile route to the development of highly efficient nanocatalysts. Here we report a one-pot synthesis of super branched Rh-on-Cu nanoscale sea urchins (Rh-Cu NSUrs) with a high density of Cu-Rh interfaces by manipulating the ligand coordination chemistry. Structural analysis and UV-vis spectra reveal that ascorbic acid can serve as a Rh-selective coordination ligand in the nonaqueous synthesis to reverse the reduction potentials of Rh3+ and Cu2+ cations. The sequential reduction of Cu2+ and then Rh3+ cations, as well as the island epitaxial growth of Rh atoms on Cu cores, leads to the formation of Rh-on-Cu nanostructures mimicking sea urchin. The size of the Cu cores and the density of Rh branches can both be facilely regulated by tuning the mole ratio of Cu to Rh. The Cu-Rh NSUrs show enhanced activity and stability in catalyzing CO oxidation, as the intrinsic Cu-Rh interfaces can act as catalytic hot spots through a bifunctional mechanism. The Cu-Rh two-component system can separate the adsorption and activation of CO and O2 on the Rh and Cu surfaces, respectively, accelerating the generation of CO2 at the interfaces." @default.
• W2770295718 created "2017-12-04" @default.
• W2770295718 creator A5038635573 @default.
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• W2770295718 date "2017-12-01" @default.
• W2770295718 modified "2023-10-03" @default.
• W2770295718 title "Ligand-Assisted, One-Pot Synthesis of Rh-on-Cu Nanoscale Sea Urchins with High-Density Interfaces for Boosting CO Oxidation" @default.
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• W2770295718 doi "https://doi.org/10.1021/acs.nanolett.7b03607" @default.
• W2770295718 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29178806" @default.
• W2770295718 hasPublicationYear "2017" @default.
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