Abstract
Poly(N-methylaniline) (PNMA) was prepared on a bare platinum electrode by electrooxidation of N-methylaniline in 1.0 mol dm−3 HCl. The PNMA film was more stable to anodic treatment than the polyaniline film. The electric conductivity of the PNMA film was potential dependent. High conductivity appeared only within the potential region where PNMA itself was redox-active. The PNMA filmed electrode showed redox response to dissolved hydroquinone whose redox current was evident within the potential region. Furthermore, the PNMA film behaved as an electrocatalyst for the electrode reaction of hydroquinone. The kinetics of the electrocatalytic reaction were investigated mainly using a rotating disc electrode. The experimental results obtained were analysed by the theory of Albery and Hillman, and the rate constant of the electron cross-exchange transfer between hydroquinone and the redox-active sites in the film (k) was determined and found to be 6.4 × 103 m −1 s−1 at 20° C.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E. W. Paul, A. J. Ricco and M. S. Wrighton, J. Phys. Chem. 89 (1985) 1441.
R. Noufi, A. J. Nozik, J. White and L. F. Warren, J. Electrochem. Soc. 129 (1982) 2261.
N. Oyama, Y. Ohnuki, K. Chiba and T. Ohsaka, Chem. Lett. (1983) 1759.
T. Kobayashi, H. Yoneyama and H. Tamura, J. E1ectroanal. Chem. 177 (1984) 293.
J. Yano and K. Ogura, Annual Meeting of the Chemical Society of Japan, Chugoku-Shikoku Branch, Kagawa, Oct. (1992) Paper 2A13.
J. Yano, A. Kitani, R. E. Vasquex and K. Sasaki, Nippon, Kgaku Kaishi (1985) 1124.
N. Oyama, K. Chiba, Y. Ohnuki and T. Ohsaka, ibid. (1985) 1172.
M. Breiter and W. Böld, Electrochim. Acta 5 (1961) 145.
J. Yano, J. Electrochem. Soc. 138 (1991) 455.
S. H. Glarum and J. H. Marshall, J. Phys. Chem. 90 (1986) 6076.
Y. Harima and K. Yamashita, ibid. 93 (1989) 4184.
W. J. Albery and A. R. Hillman, J. Electroanal. Chem. 170 (1984) 27.
C. P. Andrieux and J. M. Savéant, ibid. 93 (1978) 163.
C. P. Andrieux, J. M. Dumas-Bouchiat and J. M. Savéant, ibid. 114 (1980) 159.
C. P. Andrieux, J. M. Dumas-Bouchiat and J. M. Savéant, ibid. 131 (1982) 1.
C. P. Andrieux and J. M. Savéant, ibid. 134 (1982) 163.
F. C. Anson, J. Phys. Chem. 84 (1980) 3336.
R. D. Rocklin and R. W. Murray, ibid. 85 (1981) 2104.
R. W. Murray, Phil. Trans. R. Soc. Lond. 302 (1981) 2104.
W. J. Albery, W. R. Bowen, F. S. Fisher, A. W. Foulds, K. J. Hall, A. R. Hillman, R. G. Edgell and A. F. Orchard, J. Electroanal. Chem. 107 (1980) 37.
N. Oyama and F. C. Anson, Anal. Chem. 52 (1980) 1192.
O. Hass and H. R. Zumbrunnen, Helv. Chim. Acta 64 (1981) 854.
J. Koutecky and V. G. Levich, Zh. Fiz. Khim. 32 (1956) 1565.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yano, J., Kokura, M. & Ogura, K. Electrocatalytic behaviour of a poly(N-methylaniline) filmed electrode to hydroquinone. J Appl Electrochem 24, 1164–1169 (1994). https://doi.org/10.1007/BF00241316
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00241316