Facile synthesis of Au-Ag core-shell nanoparticles with uniform sub-2.5 nm interior nanogaps.
A facile method was established to fabricate uniform nanogaps between a Au core and a Au-Ag alloy shell. The size of nanogaps is controllable due to fast dissolution of AgCl and AgBr in CTAB and the crystal growth of the shell on a designed template. These Au-Ag core-shell nanoparticles with uniform sub-2.5 nm interior nanogaps can be potentially used for various applications.
Division of Food Systems & Bioengineering, University of Missouri, Columbia, MO, USA65211-5160. linme@missouri.edu.
Zhong
Z
Zhang
Sha
S
Zhang
Mengshi
M
Lin
D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
D012834:Silver; D006046:Gold