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Journal of Applied Electrochemistry

, Volume 12, Issue 4, pp 463–467 | Cite as

Mass transfer effects on ZrO2 oxygen concentration cells exposed to non-equilibrium H2-O2 mixtures

  • J. E. Anderson
  • Y. B. Graves
Papers

Abstract

We report further studies of ZrO2 oxygen concentration cells exposed to non-equilibrium gas mixtures. Substantial shifts of cell voltage-(H2/O2) composition curves are produced by changes in the gas flow rate past the cell. At high flow rates, there is an abrupt voltage step at about 2.2 times the H2/O2 stoichiometric ratio. At low flow rates this voltage step occurs at stoichiometry. These findings are understood on the basis of mass transfer to a heterogeneous catalyst/electrode surface.

Keywords

Mass Transfer High Flow Transfer Effect High Flow Rate Stoichiometric Ratio 
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.

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References

  1. [1]
    E. M. Logothetis,Proc. International Symposium on Zirconia, Amer. Ceramic Soc., Columbus, Ohio (1980).Google Scholar
  2. [2]
    D. Kraus,Bosch Techn. Ber. 6 (1978) 136.Google Scholar
  3. [3]
    A. L. Cederquist, E. F. Gibbons and A. H. Meitzler,SAE Trans. No. 760202 (1976).Google Scholar
  4. [4]
    T. Takeuchi, K. Saji and I. Igarashi,Electrochem. Soc. Ext. Abs. Vol. 78-2, No. 74 (1978).Google Scholar
  5. [5]
    J. E. Anderson and Y. B. Graves,J. Electrochem. Soc. 128 (1981) 294.Google Scholar
  6. [6]
    R. Jackson, ‘Transport in Porous Catalysts’ Elsevier, Amsterdam (1977).Google Scholar

Copyright information

© Chapman and Hall Ltd. 1982

Authors and Affiliations

  • J. E. Anderson
    • 1
  • Y. B. Graves
    • 1
  1. 1.Engineering and Research StaffFord Motor CompanyDearbornUSA

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