Electrochemical quartz crystal microbalance studies on the two reduction processes of conducting polypyrrole nitrate films in aqueous solutions

摘要

The mechanism of the two reduction processes of polypyrrole nitrate (PPy(NO3-)) film in aqueous solutions was studied by electrochemical quartz crystal microbalance measurements. It was verified that the reduction of PPy(NO3-) film in an acidic aqueous solution is accompanied with counter-anion dedoping. In a neutral aqueous solution, the counter-anion dedoping occurs in the first reduction process and hydrated cation insertion takes place in the second reduction process of the PPy(NO3-) film. (C) 1998 Elsevier Science S.A. All rights reserved. [References: 14]