Advertisement

Ionics

, Volume 2, Issue 5–6, pp 451–458 | Cite as

Possibilities of NOx and CHx determination using galvanic cells with perovskite-electrodes on YSZ

  • S. Jakobs
  • R. Hartung
  • U. Lawrenz
  • P. Sandow
  • U. Schönauer
  • U. Guth
Article

Abstract

Perovskite-type mixed oxides with the formula La1−xAxMe1−yByO3±δ (x=0.01...0.2; y=0.01...0.5; A=Ca, Sr; Me=Cr, Mn, Fe, Co; B=Mg, Ga) were investigated with the aim to use the oxides as electrode materials for galvanic cells with Y2O3-stabilized ZrO2 solid electrolytes (YSZ). The catalytic activity of the oxides for the oxidation, reduction and decomposition of gas components was varied by changing the transition metal and by partial substitution of lanthanum and the metal.

The behaviour of different substituted lanthanum chromite/YSZ and manganite/YSZ electrodes in the presence of nitric oxides (NOx) and combustible components (CHx) in gases containing oxygen was investigated. Various electrode combinations were tested in gas-symmetrical cells.

For the NO determination cells with a catalytically active Pt electrode and a La0.8Sr0.2MnO3 electrode with a low catalytic activity for the decomposition of NO were used. The results show the possible quantitative measurement at low and constant p(O2) on the basis of a calibration.

For the determination of C3H6 a CHx-sensitive Au and an O2-sensitive La0.99Sr0.01CrO3 electrode were combined in a potentiometric thick film sensor. In gases containing oxygen with small amounts of C3H6 the sensor provided a utilizable voltage in dependence of the C3H6 concentration.

Keywords

Catalytic Activity Nitric Oxide Lanthanum Galvanic Cell C3H6 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    D.D. Button, D.H. Archer, Amer. Ceram. Soc., Washington, Meeting May 1966.Google Scholar
  2. [2]
    Proceedings of the 2. Europ. SOFC Forum, Oslo, 6.–10.5, 1996.Google Scholar
  3. [3]
    S. Jakobs, R. Hartung, H.-H. Möbius, M. Wilke, Rev. d. Chimie minerale17, 183 (1980).Google Scholar
  4. [4]
    H.-H. Möbius, P.P. Shuk, S. Jakobs, R. Hartung, U. Guth, H. Sandow, A.A. Vecer, Elektrokhimiya, Moscow26, 1388 (1990); Soviet Electrochem. Translat.26/11, 1235 (1990), Plenum Publ. Corp., New York.Google Scholar
  5. [5]
    H. Sandow, Dissertation, Univ. Greifswald, 1991.Google Scholar
  6. [6]
    H.-H. Möbius, H. Sandow, R. Hartung, S. Jakobs, U. Guth, J. Buhrow, Dechema-Monogr.126, 329 (1992).Google Scholar
  7. [7]
    R. Hartung, R. Schröder, H.-H. Möbius, Z. phys. Chem. (Leipzig)262, 961 (1981).Google Scholar
  8. [8]
    S. Jakobs, G. Krumpe, K. Jahr, H. Sandow, H.-H. Möbius, Wiss. Z. Univ. Greifswald36, 50 (1987).Google Scholar
  9. [9]
    T. Nakamura, G. Petzow, L.J. Gauckler, Mater. Res. Bull.14, 649 (1979).CrossRefGoogle Scholar
  10. [10]
    T. Shimizu, Chem. Soc. Jpn., Chem. Letters, 1980, pp. 1–4.Google Scholar
  11. [11]
    T. Nitadori, T. Ichiki, M. Misono, Bull. Chem. Soc. Jpn.61, 621 (1988).Google Scholar
  12. [12]
    Y. Teraoka, H. Fukuda, S. Kagawa, Chem. Soc. Jpn., Chem. Letters, 1990, pp. 1–4Google Scholar
  13. [13]
    L.G. Tejuca, J.L.G. Fierro, Advances in Catalysis36, 237 (1989).Google Scholar
  14. [14]
    G. Kreminic, J.M.L. Nieto, L.G. Tejuca, C. S. Faraday I,81, 939 (1985).Google Scholar
  15. [15]
    R. Hartung, S. Thiemann, H.-H. Möbius, Solid State Phenomena39–40, 173 (1994).Google Scholar
  16. [16]
    G.I. Golodets, Heterogeneous catalytic reactions involving molecular oxygen, Elsevier, Amsterdam, 1983.Google Scholar
  17. [17]
    K.-P. Sandow, S. Jakobs, D. Westphal, S. Thiemann, R. Hartung, U. Schönauer, U. Guth, Ionics2, 435 (1996).Google Scholar
  18. [18]
    U. Lawrenz, Dissertation, Univ. Greifswald, 1996.Google Scholar
  19. [19]
    K.-P. Sandow, S. Jakobs, S. Thiemann, R. Hartung, U. Guth, U. Schönauer, Monographie GDCh3, Elektrochemie der Elektronenleiter377 (1996).Google Scholar
  20. [20]
    S. Thiemann, R. Hartung, U. Guth, U. Schönauer, Ionics2, 463 (1996).Google Scholar
  21. [21]
    S. Thiemann, R. Hartung, H. Wulff, J. Klimke, H.-H. Möbius, U. Guth, U. Schönauer, Solid State Ionics86–88, 873 (1996).Google Scholar
  22. [22]
    R. Hartung, Z. Chem.23, 154 (1983).Google Scholar
  23. [23]
    A. Vogel, G. Baier, V. Schüle, Sensors and ActuatorsB 15–16, 147 (1993).Google Scholar

Copyright information

© IfI - Institute for Ionics 1996

Authors and Affiliations

  • S. Jakobs
    • 1
  • R. Hartung
    • 1
  • U. Lawrenz
    • 2
    • 1
  • P. Sandow
    • 1
  • U. Schönauer
    • 3
    • 1
  • U. Guth
    • 1
  1. 1.Department of ChemistryErnst-Moritz-Arndt-UniversityGreifswaldGermany
  2. 2.ZIROX Ltd.GreifswaldGermany
  3. 3.ROTH-Technik Ltd.GaggenauGermany

Personalised recommendations