Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

We describe electrochemical quartz crystal microbalance measurements on poly(o-toluidine) (PoT) films exposed to aqueous perchloric acid solutions (pH 0 to 2). Crystal impedance measurements show the films to behave rigidly. PoT redox switching occurs in two stages and is accompanied by nonmonotonic mass changes that are the result of perchlorate counterion, proton co-ion, and solvent transfers. The extent and rate of each of these transfers are dependent upon electrolyte concentration, experimental time scale, and the switching potential, so that observations in a single electrolyte on a fixed time scale cannot be unambiguously interpreted. In the first and second oxidation stages, respectively, electroneutrality is satisfied predominantly by anion entry and proton exit. Throughout, there is solvent expulsion, to the extent of up to three water molecules per redox site converted. Transient experiments allow partial separation of the total mass change into individual species contributions. As the electrolyte concentration is decreased, there is progressive failure to establish first solvation, then co-ion transfer, then redox (electron/counterion transfer) equilibria.

Registro:

Documento: Artículo
Título:Electrochemical quartz crystal microbalance studies of poly(ortho-toluidine) films exposed to aqueous perchloric acid solutions
Autor:Ramirez, S.; Hillman, A.R.
Filiación:Department of Chemistry, University of Leicester, Leicester LE1 7RH, United Kingdom
Electrochemical Society
INQUIMAE, Depto. Quim. Inorg. Analitica Q., Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Aromatic polymers; Composition effects; Conductive films; Cyclic voltammetry; Electric impedance measurement; Electrolytes; Inorganic acids; Ion exchange; Quartz applications; Reaction kinetics; Redox reactions; Solvents; Electrochemical quartz crystal microbalance; Perchloric acid; Polytoluidine; Electrochemical electrodes
Año:1998
Volumen:145
Número:8
Página de inicio:2640
Página de fin:2647
DOI: http://dx.doi.org/10.1149/1.1838693
Título revista:Journal of the Electrochemical Society
Título revista abreviado:J Electrochem Soc
ISSN:00134651
CODEN:JESOA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134651_v145_n8_p2640_Ramirez

Referencias:

  • Shaolin, M., Bidong, Q., (1989) Synth. Met., 32, p. 129
  • Gomes, M.A.B., Gonçalves, D., Pereira De Souza, E.C., Valla, B., Aegerter, M.A., Bulhões, L.O.S., (1992) Electrochim. Acta, 37, p. 1653
  • Ram, M.K., Maccioni, E., Nicolini, C., (1997) Thin Solid Films, 303, p. 27
  • Venogopal, G., Quan, X., Johnson, G.E., Houlihan, F.M., Chin, E., Nalamasu, O., (1995) Chem. Mater., 7, p. 271
  • Skotheim, T.A., (1986) Handbook of Conducting Polymers, , Marcel Dekker, New York
  • Roncali, J., (1992) Chem. Rev., 92, p. 711
  • Lathery, H., (1862) J. Chem. Soc., 15, p. 161
  • MacDiarmid, A.G., Chiang, J.C., Halpern, M., Huang, W.S., Mu, S.L., Somarisi, N.L.D., Wu, W., Yaniger, S.I., (1985) Mol. Cryst. Liq. Cryst., 121, p. 173
  • Genies, E., Tsintavis, C., (1985) J. Electroanal. Chem., 195, p. 109
  • McManus, P.M., Young, S.C., Cushmay, R.J., (1985) Chem. Commun., p. 1556
  • Kobayashi, T., Yoneyama, H., Tamura, H., (1984) J. Electroanal. Chem., 177, p. 293
  • Monkman, A.P., Bloor, D., Stevens, G.C., Stevens, J.C.H., (1987) J. Phys., 134, p. 3078
  • Genies, E.M., Vieil, E., (1987) Synth. Met., 20, p. 97
  • Barbero, C., Miras, M.C., Haas, O., Kotz, R., (1991) J. Electrochem. Soc., 138, p. 670
  • Huang, W., Humphrey, B., MacDiarmid, A., (1986) J. Chem. Soc., Faraday Trans. 1, 82, p. 2400
  • Kalaji, M., Nyholm, L., Peter, L.M., (1991) J. Electroanal. Chem., 313, p. 271
  • Orata, D., Buttry, D.A., (1987) J. Am. Chem. Soc., 109, p. 3574
  • Miras, M.C., Barbero, C., Kotz, R., Haas, O., (1994) J. Electroanal. Chem., 369, p. 193
  • Frank, M.T., Denuault, G., (1993) J. Electroanal. Chem., 354, p. 331
  • Daifuku, H., Kawagoe, T., Matsunaga, T., Yamamoto, N., Ohsaka, T., Oyama, N., (1991) Synth. Met., 41-43, p. 2897
  • Daifuku, H., Kawagoe, T., Yamamoto, N., Ohsaka, T., Oyama, N., (1989) J. Electroanal. Chem., 274, p. 313
  • Horanyi, G., Inzelt, G., (1988) Electrochim. Acta, 33, p. 947
  • Leger, J., Beden, B., Lamy, C., Ocon, P., Sieiro, C., (1994) Synth. Met., 62, p. 9
  • Cattarin, S., Doubova, L., Mengoli, G., Zotti, G., (1988) Electrochim. Acta, 33, p. 1077
  • Wu, T.S., Yang, C.H., (1996) J. Electrochem. Soc., 143, p. 4019
  • Mortimer, R.J., (1995) J. Mater. Chem., 5, p. 969
  • Wei, Y., Focke, W., Wnek, G., Ray, A., MacDiarmid, A., (1989) J. Phys. Chem., 93, p. 495
  • Florit, M.I., (1996) J. Electroanal. Chem., 408, p. 257
  • Fujita, I., Ishiguchi, M., Shiota, H., Danjo, T., Kosai, K., (1992) J. Appl. Polym. Sci., 44, p. 987
  • Berrada, K., Louarn, G., Quillard, S., Lefrant, S., Pron, A., (1994) Ann. Chim. (Fr.), 19, p. 537
  • Berrada, K., Quillard, S., Louarn, G., Lefrant, S., (1995) J. Chim. Phys., 92, p. 911
  • Andrade, E.M., Molina, F.V., Florit, M.I., Posadas, D., (1996) J. Electroanal. Chem., 419, p. 15
  • Andrade, E.M., Molina, F.V., Florit, M.I., Posadas, D., (1996) J. Electroanal. Chem., 415, p. 153
  • Leclerc, M., (1990) J. Electroanal. Chem., 296, p. 93
  • Kang, E., Neoh, K., Tan, K., (1994) Synth. Met., 64, p. 77
  • Josewicz, M., Epstein, A., Pouget, J., Masters, J., Ray, A., MacDiarmid, A., (1991) Macromolecules, 24, p. 5863
  • Ocon, P., Herrasti, P., Vara, J., Vazquez, L., Salvarezza, R., Arvia, A., (1994) J. Phys. Chem., 98, p. 2418
  • Kelly, A.J., Oyama, N., (1991) J. Phys. Chem., 95, p. 9579
  • Hillman, A.R., Loveday, D.C., Bruckenstein, S., (1991) J. Electroanal. Chem., 300, p. 67
  • Bacskai, J., Kertesz, V., Inzelt, G., (1993) Electrochim. Acta, 38, p. 393
  • Bruckenstein, S., Shay, M., (1985) Electrochim. Acta, 30, p. 1295
  • Buttry, D., Ward, M., (1992) Chem. Rev., 92, p. 1355
  • Bruckenstein, S., Hillman, A.R., (1995) Handbook of Surface Imaging and Visualization, p. 101. , A. T. Hubbard, Editor, CRC Press, Boca Raton, FL
  • Sauerbrey, G.Z., (1959) Z. Phys., 155, p. 206
  • Lu, C., Czanderna, A.W., (1984) Methods and Phenomena, 7. , Elsevier, Amsterdam
  • Ballantine, D.S., White, R.M., Martin, S.J., Ricco, A.J., Zellers, E.T., Frye, G.C., Wohltjen, H., (1997) Acoustic Wave Sensors, , Academic Press, San Diego
  • Leclerc, M., Guay, J., Dao, L.H., (1988) J. Electroanal. Chem., 251, p. 21
  • Glidle, A., Hillman, A.R., Bruckenstein, S., (1991) J. Electroanal. Chem., 318, p. 411
  • Martin, S.J., Cernosek, R.W., Private communication

Citas:

---------- APA ----------
Ramirez, S. & Hillman, A.R. (1998) . Electrochemical quartz crystal microbalance studies of poly(ortho-toluidine) films exposed to aqueous perchloric acid solutions. Journal of the Electrochemical Society, 145(8), 2640-2647.
http://dx.doi.org/10.1149/1.1838693
---------- CHICAGO ----------
Ramirez, S., Hillman, A.R. "Electrochemical quartz crystal microbalance studies of poly(ortho-toluidine) films exposed to aqueous perchloric acid solutions" . Journal of the Electrochemical Society 145, no. 8 (1998) : 2640-2647.
http://dx.doi.org/10.1149/1.1838693
---------- MLA ----------
Ramirez, S., Hillman, A.R. "Electrochemical quartz crystal microbalance studies of poly(ortho-toluidine) films exposed to aqueous perchloric acid solutions" . Journal of the Electrochemical Society, vol. 145, no. 8, 1998, pp. 2640-2647.
http://dx.doi.org/10.1149/1.1838693
---------- VANCOUVER ----------
Ramirez, S., Hillman, A.R. Electrochemical quartz crystal microbalance studies of poly(ortho-toluidine) films exposed to aqueous perchloric acid solutions. J Electrochem Soc. 1998;145(8):2640-2647.
http://dx.doi.org/10.1149/1.1838693