Resumen

CHENG, JIHAI. SYNTHESIS OF LA_xSR_1-xTIO₃ ANODE MATERIALS BY SOL-GEL AUTO-COMBUSTION METHOD. J. Chil. Chem. Soc. [online]. 2012, vol.57, n.1, pp. 969-971. ISSN 0717-9707.  doi: 10.4067/S0717-97072012000100003.

A novel anode material for intermediate temperature solid oxide fuel cells with a composite of La_xSR_1-xTiO₃ has been synthesized by a sol-gel auto-combustion method. X-ray diffraction (XRD) shows that La_xSR_1-xTiO₃ has good chemical compatibility with Gd_0.2 Ce_0.8O_1.9 electrolyte. The thermal expansion coefficient (TEC) of the as-prepared anode material is similar to that of Gd_0.2 Ce_0.8O_1.9. The electric conductivity measurements show that the conductivity of La_xSR_1-xTiO₃ increases with the increasing of lanthanum contents and reached a maximal value at x=0.3. At 800^oC, the electrical conductivity of La_0.3Sr_0.7TiO₃ is 184Scm^-1.

Palabras clave : Fuel cells; Electrode materials; Chemical synthesis; X-ray diffraction.