Hostname: page-component-76fb5796d-vfjqv Total loading time: 0 Render date: 2024-04-26T21:41:13.372Z Has data issue: false hasContentIssue false
  • English
  • Français

Electrochemical Spectroscopy of Proton Intercalation in γ-Mno2‡

Published online by Cambridge University Press:  28 February 2011

Yves Chabre  and
Michel Ripert
Yves Chabre
Affiliation:
Laboratoire de Spectrométrie Physique, Université Joseph Fourier-Grenoble BP 87, F-38402 Saint Martin d'Hères, France
Michel Ripert
Affiliation:
Institut Laue-Langevin, BP 156X, F-38042, Grenoble, France
Get access

Abstract

We have performed electrochemical studies of proton intercalation in several varieties of γ/ε-MnO2 using an original method which combines linear sweep voltammetry and potentiostatic intermittent titration technique. This technique gave for the first time a direct evidence of a two step intercalation process in the ramsdellite units of these compounds. Either 0.5 or 1 proton per manganese are accommodated in the 1×2 channels, as previously suggested by Maskell. The reversibility of these steps has been studied and is discussed in relation to the structural modifications induced by the proton intercalation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 210: Symposium L – Solid State Ionics II , 1990 , 367
Copyright
Copyright © Materials Research Society 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

‡

Work supported by the PIRSEM/CNRS (ARC IPROM)

References

1. Wolff, P.M. De, Acta Crystallogr. 12, 341 (1959)CrossRefGoogle Scholar
2. Wolff, P.M. De, Wisser, J.W., Giovanoli, R. and Brütsch, R., Chimia, 32, 257 (1978)Google Scholar
3. Ripert, M., Thesis, INPG, Grenoble (1990)Google Scholar
4. Ripert, M., Pannetier, J., Chabre, Y. and Poinsignon, C., this MRS Symposium Proceedings.Google Scholar
5. Pannetier, J., Chabre, Y. and Poinsignon, C., ISSI Lett. 1, 5 (1990)Google Scholar
6. Chabre, Y., J. Electrochem. Soc., in pressGoogle Scholar
7. Maskell, W.C., Shaw, J.A.E. and Tye, F.L., J. Appl. Electrochem. 12, 101 (1982)CrossRefGoogle Scholar
8. see references in [8]Google Scholar
9. Hong, Zhang, Zhenhai, Chen and Xi, Xia, J. Electrochem. Soc., 136, 2771 (1989)CrossRefGoogle Scholar
10. Mouget, C., Vacher, A., Strobel, P. and Chabre, Y., CNRS, GrenobleGoogle Scholar
11. Thompson, A.H., J. Electrochem. Soc., 126, 608 (1979)CrossRefGoogle Scholar
12. McBreen, J., Electrochem. Acta 20, 221 (1975) and J. Power Sources, 5, 525, (1975)CrossRefGoogle Scholar
13. Atlung, S., in “Manganese Dioxide Symposium”, Vol 1, Cleveland,1975, by Kozawa, A. and Brodd, R.J., for the Electochemical Society, p.47.Google Scholar
14. Maskell, W.C., Shaw, J.A.E. and Tye, F.L., Electrochim. Acta. 26, 1403 (1981)CrossRefGoogle Scholar