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Graphene–bimetallic nanoparticle composites. (A) Procedure to fabricate graphene nanosheet/Pt-on-Pd bimetallic nanodendrite hybrids. (B) TEM images of the graphene–bimetallic nanoparticle composites. Inset of (B) shows the Pt-on-Pd bimetallic nanodendrites at a higher magnification. Reprinted with permission from ref 49. Copyright 2010 American Chemical Society.
