Synthesis and Isolation of {110}-Faceted Gold Bipyramids and Rhombic Dodecahedra

Authors

Michelle L. Personick, Northwestern University
Mark R. Langille, Northwestern UniversityFollow
Jian Zhang, University of Nebraska-LincolnFollow
Nadine Harris, Northwestern University
George C. Schatz, Northwestern University
Chad A. Mirkin, Northwestern UniversityFollow

Document Type

Article

Date of this Version

3-2011

Comments

Published in Journal of the American Chemical Society 133:16 (2011), pp. 6170–6173; doi: 10.1021/ja201826r Copyright © 2011 American Chemical Society. Used by permission.

Abstract

Two {110}-faceted gold nanostructures—rhombic dodecahedra and obtuse triangular bipyramids—have been synthesized via a Ag-assisted, seed-mediated growth method. The combination of a Cl−-containing surfactant with a low concentration of Ag+ plays a role in the stabilization of the {110} facets. To the best of our knowledge, this is the first reported synthesis of a {110}-faceted bipyramid structure.