Abstract
Electrochemical impedance spectroscopy is used to characterize thin p-doped polypyrrole (PPy) films in propylene carbonate (PC) solutions and poly(trifluorophenyl)thiophene (PTFPT), in solutions based on sulfolane (SF). It appears that the latter film is much less swelled compared to the former one. One consequence of this difference is that the PTFPT film shows a much higher bulk resistance compared to that for the PPy film. Another important consequence is that the swelling of the PTFPT film is essentially physically non-homogeneous. Two parallel, uncoupled paths, with different chemical diffusion coefficients, model the experimental results adequately. In order to quantify the impedance spectra for both polymer films, we use a model proposed by Rubinstein et al. explaining the difference in the diffusion coefficients of Ru(bpy)3+/2+ 3 within a thin Nafion film. The model can also predict the impedance spectra for composite powdery electrodes containing different particle sizes, such as composite cathodes and graphite anodes used in lithium batteries.
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REFERENCES
Li, G. and Pickup, P.G., J. Phys. Chem. B, 1999, vol. 103, p. 10143.
Deiss, E., Sullivan, M., and Haas, O., J. Electroanal. Chem., 1994, vol. 378, p. 93.
Rubinstein, I., Rishpon, J., and Gottesfeld, S., J. Electrochem. Soc., 1986, vol. 133, p. 729.
Buck, R.P., J. Electroanal. Chem., 1986, vol. 210, p. 1.
Buck, R.P., J. Electroanal. Chem., 1987, vol. 219, p. 23.
Franceschetti, D.R., Macdonald, J.R., and Buck, R.P., J. Electrochem. Soc., 1991, vol. 138, p. 1368.
Ren, X. and Pickup, P., J. Electroanal. Chem., 1995, vol. 396, p. 359.
Vorotyntsev, M.A., Daikhin, L.I., and Levi, M.D., J. Electroanal. Chem., 1994, vol. 364, p. 137.
Vorotyntsev, M.A., Badiali, J.-P., and Inzelt, G., Electroanal. Chem., 1999, vol. 472, p. 7
Vorotyntsev, M.A., Badiali, J.-P., and Vieil, E., Electrochim. Acta, 1996, vol. 41, p. 1375.
Vorotyntsev, M.A., Electrochim. Acta, 2002, vol. 47, p. 2071.
Levi, M.D. and Aurbach, D., J. Phys. Chem. B, 1997, vol. 101, p. 4630.
Levi, M.D. and Aurbach, D., J. Electrochim. Acta, 1999, vol. 45, p. 167.
Wang, Chunsheng, Appleby, A.J., and Little, F.E., J. Electrochim. Acta, 2001, vol. 46, p. 1793.
Martinent, A., Le Gorrec, B., Montella, C., and Yazami, R., J. Power Sources, 2001, vols. 97–98, p. 83.
Levi, M.D., Salitra, G., Markovsky, B., Teller, H., and Aurbach, D., J. Electrochem. Soc., 1999, vol. 146, p. 1279.
Levi, M.D., Gamolsky, K., Heider, U., Oesten, R., and Aurbach, D., J. Electrochim. Acta, 2000, vol. 45, p. 1781.
Nobili, F., Tossici, R., Marassi, R., Croce, F., and Scrosati, B., J. Phys. Chem. B, 2002, vol. 106, p. 3909.
Macdonald, J.R., in Impedance Spectroscopy, New York: Wiley, 1987, p. 60.
Nishizawa, M., Hashitani, R., Itoh, T., Matsue, T., and Uchida, I., J. Electrochem. Solid-State Lett., 1998, vol. 1, p. 10.
Deslouis, C., El Moustafid, T., Musiani, M.M., and Tribollet, B., Electrochim. Acta, 1996, vol. 41, p. 1343.
Levi, M.D. and Aurbach, D., J. Electrochem. Soc., 2002, vol. 149, p. E215.
Levi, M.D., Gofer, Y., Aurbach, D., and Berlin, A., Phys. Chem. Chem. Phys. (in press).
Levi, M.D., Lankri, Eli, Gofer, Y., Aurbach, D., and Otero, T., J. Electrochem. Soc., 2002, vol. 149, p. E204.
Levi, M.D., Gofer, Y., Cherkinsky, M., Birsa, M.L., Aurbach, D., and Berlin, A., Phys. Chem. Chem. Phys. (in press).
Bisquert, J. and Compte, A., J. Electroanal. Chem., 2001, vol. 499, p. 112.
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Levi, M.D., Gofer, Y. & Aurbach, D. Effect of the Structure of Nonuniform Conducting Polymer Films on Their Electrochemical Impedance Response. Russian Journal of Electrochemistry 40, 273–279 (2004). https://doi.org/10.1023/B:RUEL.0000019664.37621.6a
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DOI: https://doi.org/10.1023/B:RUEL.0000019664.37621.6a