Monodisperse Gold–Copper Bimetallic Nanocubes: Facile One-Step Synthesis with Controllable Size and Composition


  • Certain commercial equipment, instruments, or materials are identified in this paper to foster understanding and does not imply recommendation or endorsement by NIST, nor does it imply that the materials or equipment identified are necessarily the best available for the purpose. Y.L. acknowledges the support of the National Research Council (NRC, NIH(NIBIB)/NIST) for a research associate fellowship. Both authors acknowledge the Maryland NanoCenter and its NispLab (the NispLab is supported in part by the NSF as a MRSEC Shared Experimental Facility), the University of Maryland X-ray crystallographic center, and Dr. Zhufang Liu for XRD measurements.


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Precision preparation: A facile, one-step, polyol protocol has been developed to prepare monodisperse, single-crystalline Au–Cu bimetallic nanocubes. Through the careful adjustment of the reaction parameters, both the dimensions of the nanocubes (two examples with edge lengths of 23 and 5 nm are shown) and their gold and copper stoichiometry can be controlled.