Ionics

, Volume 6, Issue 5–6, pp 359–363 | Cite as

Investigations on selected gallium doped lanthanum chromites as electrode materials for HC detection

  • J. Zosel
  • K. Ahlborn
  • W. Fichtner
  • R. Müller
  • U. Guth
Article

Abstract

Perovskite-type mixed oxides with the formula La1−xGa0.3Cr0.7O3−δ (x=0.2; 0.1; 0.05; 0) were investigated in view of their usability as electrode materials in exhaust gas sensors for HC detection. The electrode materials were characterised regarding their structure, catalytic activity for propene oxidation and potentiometric behaviour in combustible gaseous mixtures. XRD-measurements indicate, that the solid oxide method does not permit lanthanum deficiencies x ≥ 0.05. The electrodes show non Nernstian behaviour.

Keywords

Propene Catalytic Activity Gaseous Mixture Gallium Lanthanum 

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Copyright information

© IfI - Institute for Ionics 2000

Authors and Affiliations

  • J. Zosel
    • 1
  • K. Ahlborn
    • 1
  • W. Fichtner
    • 1
  • R. Müller
    • 1
  • U. Guth
    • 1
  1. 1.Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V.MeinsbergGermany

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