Abstract
The electrochemical behaviour of new viologen derivatives, C5V3+ and C5V4+, has been studied in Nafion® films on gold electrodes. The new viologens bear extra positive charges with respect to methyl viologen (MV2+). They remain positively charged upon two-electron reduction, while MV2+ is reduced to a neutral form under similar conditions. This fundamental distinction is shown to induce a substantial difference in the voltammetric behaviour and stability of C5V3+ and C5V4+ in Nafion films compared with MV2+. These differences are discussed in terms of a model suggested previously for the electrochemical behaviour of electrode couples comprising neutral/cationic forms in Nafion. The model considers the influence of the inner structure of the polymer on electrochemical reactions occurring therein.
Original language | English |
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Pages (from-to) | 217-223 |
Number of pages | 7 |
Journal | Journal of Electroanalytical Chemistry |
Volume | 315 |
Issue number | 1-2 |
DOIs | |
State | Published - 10 Oct 1991 |
Externally published | Yes |
ASJC Scopus subject areas
- Analytical Chemistry
- General Chemical Engineering
- Electrochemistry