Department of Chemistry
Date of this Version
2011
Abstract
Gold octahedra with hollow features have been synthesized in high yield via the controlled overgrowth of preformed concave cube seeds. This Ag+-assisted, seed-mediated synthesis allows for the average edge length of the octahedra and the size of the hollow features to be independently controlled. We propose that a high concentration of Ag+ stabilizes the {111} facets of the octahedra through underpotential deposition while the rate of Au+ reduction controls the dimensions of the hollow features. This synthesis represents a highly controllable bottom-up approach for the preparation of hollow gold nanostructures.
Comments
Published in Journal of the American Chemical Society 133:27 (2011), pp. 10414–10417; doi: 10.1021/ja204375d Copyright © 2011 American Chemical Society. Used by permission.