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. Author manuscript; available in PMC: 2008 Sep 11.
Published in final edited form as: J Phys Chem C Nanomater Interfaces. 2008;112(21):7872–7876. doi: 10.1021/jp711662f

Figure 3.

Figure 3

SEM images showing six different stages of the galvanic replacement reaction that involves the use of Ag nanospheres as a sacrificial template. (A–F) Ag nanospheres titrated with 0, 0.5, 0.75, 1.25, 1.75, and 3.0 mL of 0.03 mM aqueous HAuCl4, respectively. The insets show TEM images of each respective sample. Scale bar = 30 nm for all TEM images.