The electrochemical behavior of colloidal polypyrrole

The electrochemical behavior and charge transport of colloidal polypyrrole particles (without stabilizer) modified electrode have been investigated. The voltametric results show that the electrochemical behavior of colloidal polypyrrole is different from that of polypyrrole synthesized electrochemically. The strong adsorption of the colloidal particles on substrate makes it easy to form a polypyrrole modified electrode. The charge transport of polypyrrole is controlled by the diffusion of counterions.