Structural and electrical properties of La2–xSrxMo2O9–δ

Sr-doped La2Mo2O9 were prepared by solid state reaction and characterized by XRD, impedance spectroscopy and Hebb- Wagner polarization method. XRD patterns of the samples indicated that the solubility limit of Sr2+ in La2–xSrxMo2O9–δ was in the range of 7 mol.% to 7.5 mol.%, i.e., the maximum stoichiometric coefficient x in La2–xSrxMo2O9–δ was larger than 0.14 and less than 0.15. The cubic lattice parameter of La2–xSrxMo2O9–δ (0

Graphical AbstractImpedance spectra measured for La1.87Sr0.13Mo2O9-δ at 823 K in air and argon atmosphere, respectively (Insert shows enlargement of the high frequency part)Figure optionsDownload as PowerPoint slide