Fig. 9.10. Transmission electron micrograph of gold spheroids
before and 1 h after cyanide treatment. a: no cyanide, b:
5 Â 10
À4 M CN
À . Reprinted with permission from [62].
Copyright (2002) American Chemical Society.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0
1
2
3
4
5
6
7
Time (min)
Absorbance
longitudinal
transverse
Fig. 9.11. Absorbance vs. time plot for cyanide dissolution at
wavelengths corresponding to the transverse and longitudinal
plasmon bands. Conditions were similar to set ‘f ’ in Figure 9.9.
Reprinted with permission from [62]. Copyright (2002)
American Chemical Society.
9.4 Reactivity of Metallic Nanoparticles Depends on Aspect Ratio 301