Crystal Structure of La1−xCexCoO3+δ (x ≤0.1) nanoparticles at different temperatures

Nanoparticle La_1-xCe_xCoO_3+delta (x les 0.1) cobaltite oxide powders with perovskite structure was synthesized at different calcination temperatures using the amorphous heteronuclear complex La_1-xCe_xCo(DTPA)middot6H₂O (x = 0.1) as precursor. The effects of the calcination temperature was examined by XRD, TEM methods. The crystal structure of perovskite type La_1-xCe_xCoO_3+delta (x les 0.1) was refined by X-ray Rietveld analysis for three different calcination temperatures. The results indicate that the La_1-xCe_xCoO_3+delta (x les 0.1) cobaltide oxide powder is not of pure perovskite type with increasing calcination temperature from T = 600degC to T = 900degC.