Synthesis of laxsr1-xtio3 anode materials by sol-gel auto-combustion method

• JIHAI CHENG ^[1]
  1. [1] Hefei University

     Hefei University

     China

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 57, Nº. 1, 2012, págs. 969-971
• Idioma: inglés
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• Resumen

  • A novel anode material for intermediate temperature solid oxide fuel cells with a composite of La xSR1-xTiO3 has been synthesized by a sol-gel auto-combustion method. X-ray diffraction (XRD) shows that La xSR1-xTiO3 has good chemical compatibility with Gd0.2 Ce0.8O1.9 electrolyte. The thermal expansion coefficient (TEC) of the as-prepared anode material is similar to that of Gd0.2 Ce0.8O1.9. The electric conductivity measurements show that the conductivity of La xSR1-xTiO3 increases with the increasing of lanthanum contents and reached a maximal value at x=0.3. At 800ºC, the electrical conductivity of La0.3Sr0.7TiO3 is 184Scm-1.