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Enhanced Oxide Ion Diffusion in the Interlanthanide Perovskite LaTmO3

Published online by Cambridge University Press:  10 February 2011

M. Deepa  and
U.V. Varadaraju
M. Deepa
Affiliation:
Materials Science Research Centre, Indian Institute of TechnologyMADRAS 600 036., INDIA
U.V. Varadaraju
Affiliation:
Materials Science Research Centre, Indian Institute of TechnologyMADRAS 600 036., INDIA
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Abstract

Recent studies on Perovskites type compounds revealed an oxide ion conductivity, higher than that of Fluorite structures. The most recent one is doped Lanthanum Gallate, which exhibits a maximum ionic conductivity of 0.14 S cm-1 and is a promising new ion conductor. The objective of this study is to synthesize and investigate the ionic conductivity of a similar compound, namely doped LaTmO3. Single phase compounds of the system La1-xSrxTm1-yMgyO3(X=0-0.2,y=0.1&0.2) were synthesized and the ionic conductivity measured at various temperatures. The results showed that ionic conductivity improved significantly with Sr doping. It showed highest oxygen ion diffusion and catalytic activity for Sr doped LaTmO3.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 527: Symposium Z – Diffusion Mechanisms in Crystalline Materials , 1998 , 507
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1. Cherry, M., Islam, M.S. and Catlow, C.R.A., J.Solid State Chem. 115, (1995) 125 Google Scholar
2. Catlow, C.R.A. J.Chem. Soc. Faraday Trans 89, 3833.Google Scholar
3. Islam, M.S., Ilett, D.J. and Parker, S.C., J.Phys.Chem, 98, (1994) 9637.Google Scholar
4. Goodenough, J.B., Hong, H.Y.P., and Kafalas, J.K., Mat.Res.Bull. 11, (1976)Google Scholar
5. Ishihara, Tatsumi, Matsuda, Hideaki and Takita, Yusaku. J.Am.Chem. Soc. 116, (1194) 3801.Google Scholar
6. Huang, PengNian and Petric, Anthony, J.Eletcrochem.Soc. 143, (1996) 5.Google Scholar
7. Feng, Man and Goodenough, J.B. Eur.J.Solid State Inorg. Chem. 131, (1994) 663.Google Scholar