Synthesis and Characterization of Y-doped SrTiO₃Powder by Pechini Method

Abstract

8 mol% Y-doped SrTiO 3 powder was synthesized by Pechini method from titanium isopropoxide, strontium nitrate, yttrium nitrate, citric acid and ethylene glycol. A Y 2 Ti 2 O 7 pyrochlore phase-free perovskite powder was obtained by calcining a polymeric resin, which was prepared from a precursor solution, at 500 o C in an air atmosphere. Low temperature calcination could lead to a fine-grained microstructure. In the case of a solid-state reaction, an extended heat-treatment at high temperature in a reduced atmosphere needed to obtain a single phase perovskite SrTiO 3 .

Characteristics of Sr0.92Y0.08TiO3-δAnode in Humidified MethaneFuel for Intermediate Temperature Solid Oxide Fuel Cells

“…Porosity differences could be caused by the different synthesis processes, such as heat treatment, sintering time, etc. [15][16][17].…”