Figure 9. Cyclic voltammogram of plyaniline (HCI) on a glassy carbon electrode; 1 M HCI(aq); 50 mV/s. The potentials at which structure and color changes occur and the change in the potential of the second redox reaction with pH are shown as well. The second oxidation peak moves to a less positive potential with increasing pH.

Figure 10. Transmission electron micrograph of colloidal polypyrrole nitrate. Reprinted with permission from [4], G. G. Wallace and P. C. Innis, J. Nanosci. Nanotech. 2, 441 (2002). © 2002, American Scientific Publishers.
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