Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
권호 표지
DOI QR코드

DOI QR Code

Polypyrrole Doped with Sulfonate Derivatives of Metalloporphyrin: Use in Cathodic Reduction of Oxygen in Acidic and Basic Solutions

  • Published : 1998.02.20
Download PDF
⟨ Previous Next ⟩

Abstract

Incorporation of metalloporphyrins into polypyrrole (PPy) film was achieved either by electropolymerization of pyrrole in the presence of metal-tetra(sulfonatophenyl)porphyrin anion (MTSPP, M=Co, Fe) or by metalizing hydrogenated tetra(4-sulfonatophenyl)porphyrin anion (H2TSPP) doped into PPy through ion-exchange. Electrochemical reduction of oxygen on the PPy doped with metallo porphyrin (PPy-MTSPP) was studied in acidic and basic solutions. Oxygen reduction on PPy-MTSPP electrodes appeared to proceed through a 4-electron pathway as well as a 2-electron path. In acidic solutions, the overpotential for O2 reduction on PPy-CoTSPP electrode was smaller than that on gold by about 0.2 V. In basic solutions the overpotential of the PPy-CoTSPP electrode in the activation range was close to those of Au and Pt. The limiting current was close to that of Au. However, polypyrrole doped with cobalt-tetra(sulfonatophenyl)porphyrin anion (PPy-CoTSPP) or with iron-tetra(sulfonatophenyl)porphyrin anion (PPy-FeTSPP) was found to have limited potential windows at high temperatures (above 50 ℃), and hence the electrode could not be held at the oxygen reduction potentials in basic solutions (pH 13) without degradation of the polymer.

Keywords

References

  1. Electrochim. Acta v.29 Yeager, E.
  2. Electrochemical Oxygen Technonlogy Kinoshita, K.
  3. J. Phys. Chem. v.96 Martins, A. M. C.;Dodelet, J. P.;Guay, D.;Ladouceur, M.;Tourillon, G.
  4. Polymer v.34 Vijayanathan, V.;Venkatachalam, S.;Krishnamurthy, V. N.
  5. Inorg. Chem. v.29 Shi, C.;Anson, F. C.
  6. J. Phys. Chem. v.94 Jiang, R.;Dong, S.
  7. J. Chem. Soc. Chem. Comm. Okabayashi, K.;Ikeda, O.;Tamura, H.
  8. J. Electroanal. Chem. v.191 Ikeda, O.;Okabayashi, K.;Yoshida, N.;Tamura, H.
  9. J. Ectroanal. Chem. v.207 Bedioui, F.;Bongars, C.;Devynck, J.;Charreton, C.;Hinnen, C.
  10. J. Electronal. Chem. v.324 Deronzier, A.;Devaux, R.;Limosin, D.;Latour, J. M.
  11. J. Electroanal. Chem. v.297 Bedioui, F.;Voisin, M.;Devnck, J.;Bied-Charrenton, C.
  12. J. Electroanal. Chem. v.239 Bedioui, F.;Merino, A.;Devynck, J.;Mestres, C. E.;Bied-Charreton, C.
  13. Electrochim. Acta v.38 Bedioui, F.;Bouhier, V.;Sorel, C.;Devynck, J.;CocheGuerente, L;Deronzier, A.
  14. Acc. Chem. Res. v.28 Bedioui, F.;Devynck, J.;Bied-Charreton, C.
  15. J. Chem. Soc., Faraday Trans. v.88 Gregori, I.;Carrier, M.;Deronzier, A.;Moutet, J.;Bedioui, F.;Devynck, J.
  16. Bull. Chem. Soc. Jpn v.59 Osaka, T.;Naoi, K.;Hirabayashi, T.;Nakamura, S.
  17. J. Electrochem. Soc. v.131 Bull, R. A.;Fan, F.-R.;Bard, A. J.
  18. J. Electroanal. Chem. v.274 Be'langer, D.;Nadreau, J.;Fortier, G.
  19. Laboratory Methods in Porphyrin and Metalloporphyrin Research Fuhrhop, J. H.;Smith, K. M.