Skip to main content
. Author manuscript; available in PMC: 2008 Aug 8.
Published in final edited form as: Nano Lett. 2007 May 10;7(6):1764–1769. doi: 10.1021/nl070838l

Figure 4.

Figure 4

(A) TEM image of nanoboxes obtained by galvanic replacement reaction between 50-nm Ag nanocubes and 10 mL of 0.2 mM HAuCl4 solution. After etching with (B) 10, (C) 20, and (D) 100 μL of 50 mM aqueous Fe(NO3)3 solution, no significant morphological change was observed. EDX analysis shows that the atomic ratios of Au to Ag are 30:70, 36:64, 40:60, and 43:57 for (A), (B), (C), and (D), respectively.