Skip to main content
SpringerLink
Log in

Physicochemical properties of rare earth perovskite oxides used as gas sensor material

  • Papers
  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

The change of the conductivity in the rare earth perovskite oxide took place after the chemisorption of flammable gases. The sensitivity for methanol was highest. From the conductivity change of these perovskite oxides after the injection of methanol, the energy needed to promote an electron from a conducting to a nonconducting state, ΔE=E c-E t, could be derived from the equationσ=A σ 0 exp (−ΔE/kT). LnCoO3 had the smallest ΔE and ΔH (metal-O), which is the binding energy of oxygen coordinating to the metal ions, but exhibited the highest activity for gas sensing. The gas sensing mechanism was also considered.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. T. Seiyama, A. Kato, F. Fujiishi andM. Nagtani,Anal. Chem. 34 (1962) 1502.

    Google Scholar 

  2. T. Seiyama andS. Kagawa,ibid. 38 (1966) 1069.

    Google Scholar 

  3. N. Taguchi, US Patent 3 695 848, 3 October (1972).

  4. H. Obayashi, Y. Sakurai andT. Gojo,J. Solid State Chem. 17 (1976) 299.

    Google Scholar 

  5. E. M. Vogel, D. W. Johnson Jr andP. K. Gallagher,J. Amer. Ceram. Soc. 60 (1977) 31.

    Google Scholar 

  6. R. J. H. Voorhoeve, D. W. Johnson Jr, J. P. Remeika andP. K. Gallagher,Science 195 (1977) 827.

    Google Scholar 

  7. T. Arakawa, S. Tsuchi-Ya andJ. Shiokawa,J. Catal. 74 (1982) 317.

    Google Scholar 

  8. S. R. Morrison,Surf. Sci. 45 (1974) 20.

    Google Scholar 

  9. J. R. Stetter,J. Colloid Interface Sci. 65 (1978) 432.

    Google Scholar 

  10. R. J. H. Voorhoeve, J. P. Remeika andL. E. Trimble, “The Catalytic Chemistry of Nitrogen Oxides” (Plenum Press, New York, 1975) p. 145.

    Google Scholar 

  11. J. B. Goodenough, “Progress in Solid State Chemistry” (Pergamon Press, Oxford, 1971) p. 145.

    Google Scholar 

  12. R. J. H. Voorhoeve, “Advanced Materials in Catalysts” (Academic Press, Oxford, 1971) p. 129.

    Google Scholar 

  13. J. M. D. Tascón andL. González Tejuca,Z. Phys. Chem. Neue Folge, Bd. 121 (1980) 63.

    Google Scholar 

  14. F. Steinbach, H. J. Spengler, H. J. Bohlmann andJ. Hynding, Proceedings 7th International Congress on Catalysis (Kodansha-Elsevier, Tokyo, 1981) p. 122.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Applied Chemistry, Faculty of Engineering, Osaka University, 2-1 Yamadaoka, Suita-shi, Osaka-fu, Japan

    Tsuyoshi Arakawa, Hiroshi Kurachi & Jiro Shiokawa

Authors
  1. Tsuyoshi Arakawa
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Hiroshi Kurachi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Jiro Shiokawa
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Arakawa, T., Kurachi, H. & Shiokawa, J. Physicochemical properties of rare earth perovskite oxides used as gas sensor material. J Mater Sci 20, 1207–1210 (1985). https://doi.org/10.1007/BF01026315

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01026315

Keywords

Search

Navigation