Shape-Controlled Synthesis of Metal Nanocrystals

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Presentation transcript:

Shape-Controlled Synthesis of Metal Nanocrystals Younan Xia, Department of Biomedical Engineering, Washington University in St. Louis, MO 63130 Uncovering the correlation between the shape of a nanocrystal and the twin structure of a seed (left panel) Understanding of the evolution pathways from atoms to nanocrystals having different shapes (right panel) Shape-control through oxidative etching (for selective removal of the twinned seeds) and surface capping Demonstration of new shapes for Ag, Au, Pd, Pt and Rh nanocrystals, as well as their catalytic applications