Facile synthesis of gold-silver nanocages with controllable pores on the surface.
Gold-silver alloy nanocages with controllable pores on the surface have been synthesized via galvanic replacement reaction between truncated Ag nanocubes and aqueous HAuCl4. Unlike in the previous studies, the initiation of replacement reaction started in a controllable way, simultaneously from eight corners of the truncated Ag nanocubes where {111} facets were exposed. The formation of cubic nanocages with pores at all the corners was determined by the capping agent, poly(vinyl pyrrolidone) (PVP), which preferentially covered the {100} facets of a truncated Ag nanocube.
Chen
Jingyi
J
Department of Chemistry, University of Washington, Seattle, WA 98195-1700, USA.
McLellan
Joseph M
JM
Siekkinen
Andrew
A
Xiong
Yujie
Y
Li
Zhi-Yuan
ZY
Xia
Younan
Y
D006046:Gold / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
D012834:Silver; D006046:Gold