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      Segregation in bimetallic nanoparticles

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          Abstract

          Theoretical models and experimental results for segregation in bimetallic nanoparticles are discussed and compared in this perspective.

          Abstract

          Bimetallic nanoparticles are of interest due to their physical and chemical properties, which differ from their monometallic counterparts, and are dependent on size, composition and structure. Their unique chemical and physical properties make them useful in many optical, electronic and catalytic applications. In this perspective article we discuss segregation in bimetallic nanoparticles and highlight a recent analytical model based on minimization of energy. Computational approaches are discussed, along with a few examples and a comparison with the analytical approach. Experimental evidence for surface segregation is described, and finally, future directions are suggested. From this review of theoretical and experimental information it appears that a general consensus is starting to emerge that there are size-dependent variations in segregation in nanoparticles with the experimental data reasonably consistent with the theoretical models.

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            Chemistry and properties of nanocrystals of different shapes.

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              Embedded-atom-method functions for the fcc metals Cu, Ag, Au, Ni, Pd, Pt, and their alloys

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                Author and article information

                Journal
                PPCPFQ
                Physical Chemistry Chemical Physics
                Phys. Chem. Chem. Phys.
                Royal Society of Chemistry (RSC)
                1463-9076
                1463-9084
                2015
                2015
                : 17
                : 42
                : 27940-27951
                Affiliations
                [1 ]Department of Materials Science and Engineering
                [2 ]Northwestern University
                [3 ]Evanston
                [4 ]USA
                [5 ]Department of Materials Science & NanoEngineering
                [6 ]Rice University
                [7 ]Houston
                [8 ]Department of Chemistry
                Article
                10.1039/C5CP01492A
                2819f566-a73e-4381-a6ee-e78e60afa2fe
                © 2015
                History

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