Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-25T17:41:26.353Z Has data issue: false hasContentIssue false
  • English
  • Français

Point Defects and Protonic Conduction in A3B'B”2O9 Compounds

Published online by Cambridge University Press:  16 February 2011

Yang Du  and
A.S. Nowick
Yang Du
Affiliation:
Materials Science, Columbia University, New York, NY 10027
A.S. Nowick
Affiliation:
Materials Science, Columbia University, New York, NY 10027
Get access

Abstract

We have investigated the defect structure and protonic transport properties of nonstoichiometric complex perovskite-type compounds of the type A3B'1+xNb2-xO9-δ. where A and B' are both divalent ions. Protons are incorporated by treatment in H2O vapor and their presence is manifested by the appearance of an OH band in the IR spectra, as well as by the large increase in electrical conductivity to produce excellent protonic conductors, with lower activation energies. A non-classical isotope effect, in which the Arrhenius plots for D+ and H+ cross over, can be explained by a modification of the classical ART hopping theory.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 369: Symposium U – Solid State Ionics IV , 1994 , 289
Copyright
Copyright © Materials Research Society 1995

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.)

References

[1] Iwahara, H., Esaka, T., Uckida, H. and Maeda, N., Solid State Ionics 3/4 (1981) 359.Google Scholar
[2] Mitsui, A., Miyayama, M. and Yanagida, H., Solid State Ionics 22 (1987) 213.Google Scholar
[3] Bonanos, N., Ellis, B. and Mahmood, M.N., Solid State Ionics 28/30 (1988) 579.Google Scholar
[4] Scherban, T., Lee, W-K and Nowick, A.S., Solid State Ionics 28/30 (1988) 585.Google Scholar
[5] Liu, J.F. and Nowick, A.S., Solid State Ionics 50 (1992) 131.Google Scholar
[6] Bonanos, N., Solid State Ionics 53/56 (1992) 967.Google Scholar
[7] Yajima, T., Suzuki, H., Yogo, T. and Iwahara, H., Solid State Ionics 51 (1992) 101.Google Scholar
[8] Larring, Y. and Norby, T., Solid State Ionics 70/71 (1994) 305.Google Scholar
[9] Liang, K.C. and Nowick, A.S., Solid State Ionics 61 (1993) 77.Google Scholar
[10] Liang, K.C., Du, Yang and Nowick, A.S., Solid State Ionics 69 (1994) 117.Google Scholar
[11] Galasso, F.S., "Perovskites and High Tc Superconductors" (Gordon and Breach Science, 1990).Google Scholar
[12] Harmer, M.P., Chen, J., Peng, P., Chan, H.M. and Smyth, D.M., Ferroelectrics Vol. 97 (1989) 263.Google Scholar
[13] Nowick, A.S. and Du, Yang, Solid State Ionics in press (VII Intl. Conf. on Solid Proton Conductors, Germany, Sept., 1994).Google Scholar
[14] Kapphan, S., Koppitz, J. and Weber, G., Ferroelectrics 25 (1980) 585.Google Scholar
[15] Shin, S., Huang, H.H., Ishigame, M. and Iwahara, H., Solid State Ionics 40/41 (1990) 910.Google Scholar
[16] Nowick, A.S., Lee, W-K and Jain, H., Solid State Ionics 28/30 (1988) 89.Google Scholar
[17] Etsell, T.H. and Flangas, S.N., Chem. Rev. 70 (1970) 339.Google Scholar
[18] Du, Yang and Nowick, A.S., to be published.Google Scholar
[19] Du, Yang, Doctoral Thesis, Columbia University (1994).Google Scholar
[20] Iche, G. and Nozieres, J., J. Physique 37 (1876) 1313.Google Scholar