Concave cubic gold nanocrystals with high-index facets.
A new class of gold nanostructures, concave nanocubes, enclosed by 24 high-index {720} facets, have been prepared in a monodisperse fashion by a modified seed-mediated synthetic method. The Cl(-) counterion in the surfactant plays an essential role in controlling the concave morphology of the final product. The concave nanocubes exhibit higher chemical activities compared with low-index {111}-faceted octahedra.
Zhang
Jian
J
Department of Chemistry, and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Langille
Mark R
MR
Personick
Michelle L
ML
Zhang
Ke
K
Li
Shuyou
S
Mirkin
Chad A
CA