, Volume 6, Issue 5–6, pp 346–350 | Cite as

Structural and electrical investigations of (Y,Gd)1-xCr0.8Ga0.2O3

  • D. WestphalEmail author
  • A. Laske
  • S. Jakobs
  • U. Guth


Pure and gallium doped YCrO3 and GdCrO3 with the formula (Y,Gd)1-xCr0.8Ga0.2O3 (x=0,...,0.2), prepared by a conventional oxide method, were investigated regarding the influence of A-cation-deficiency on structure, conductivity and electrode behaviour in a special modified galvanic cell for the determination of gaseous hydrocarbons (HC). All samples form the GdFeO3-type orthorhombic perovskite structure but with A-site-substoichiometry a second phase, (Y,Gd)3Ga5O12, with garnet structure occurs. All investigated chromites are semiconductors. The total conductivity in air is influenced by the second phase. The use of these samples as electrode materials does not show a HC sensitive behaviour.


Oxide Analytical Chemistry Hydrocarbon Perovskite Electronic Material 
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Copyright information

© IfI - Institute for Ionics 2000

Authors and Affiliations

  1. 1.Sensor Research Center GreifswaldGermany
  2. 2.Institute for Chemistry and BiochemistryUniversity of GreifswaldGermany
  3. 3.Kurt-Schwabe-Institut MeinsbergTechnical University of DresdenGermany

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