Thermo-Raman and impedance spectroscopic techniques were utilized in this work to derive information on the phase transformations and the electrical properties of γ-Bi2MoO6 sample. Although the thermal evolution of the O bond distances and the thermo-Raman spectral variation provided evidence for the existence of an intermediate γ(I)-Bi2MoO6 phase between γ(L)-Bi2MoO6 and γ(H)-Bi2MoO6 there was no strong support for a coordination change in the intermediate phase. The observation of a jump in oxide ion conductivity at 310 to 610C, with the low activation energy of 1.17eV, was an important factor in its usefulness as a catalyst.

Investigation on Ionic Conductivity and Raman Spectra of γ-Bi2MoO6. R.Murugan: Physica B, 2004, 352[1-4], 227-32