Journal of Applied Electrochemistry

, Volume 18, Issue 2, pp 173–177 | Cite as

Mixed conduction and oxygen permeation in the substituted oxides for CaTiO3

  • H. Iwahara
  • T. Esaka
  • T. Mangahara


Mixed conduction in substituted perovskite-type oxides CaTi1−xMxO3−α (M=Fe, Co and Ni) was studied by means of electrochemical methods. Of these materials, Fe-substituted oxides showed the highest oxide ion conductivity as well as high electronic conductivity. The oxide ion transport numbers of the oxides were lower than 0.6 over the whole composition range measured in air. Electrochemical oxygen permeation in such a material could be confirmed by gas chromatography. Extraction of oxygen from air was carried out using the mixed conductor. The oxygen extraction rate in this method was higher than that using a silicone film.


Extraction Rate Electronic Conductivity Composition Range Electrochemical Method Oxygen Extraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    T. Esaka, H. Iwahara and H. Kunieda,J. Appl. Electrochem. 12 (1982) 235.Google Scholar
  2. [2]
    T. Esaka and H. Iwahara,J. Appl. Electrochem. 15 (1985) 447.Google Scholar
  3. [3]
    H. Iwahara, T. Esaka and K. Takeda,J. Amer. Ceram. Soc. (to be published).Google Scholar
  4. [4]
    T. Takahashi, H. Iwahara and T. Ichimura,Denki Kagaku 37 (1969) 857.Google Scholar
  5. [5]
    T. Takahashi, T. Esaka and H. Iwahara,J. Solid State Chem. 16 (1976) 317.Google Scholar
  6. [6]
    S. Shimizu,Energy and Resources 4 (1983) 178.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1988

Authors and Affiliations

  • H. Iwahara
    • 1
  • T. Esaka
    • 1
  • T. Mangahara
    • 1
  1. 1.Department of Environmental Chemistry and Technology, Faculty of EngineeringTottori UniversityTottoriJapan

Personalised recommendations