Abstract:A polycrystalline Ba2Fe2/3Mo4/3O6 double‐perovskite has been prepared by decomposition of citrate precursors and subsequent thermal treatment under a reducing atmosphere. The crystal structure has been studied by combined X‐ray and neutron powder diffraction (XRPD and NPD). At room temperature, the structure is cubic (Fm$\bar {3}$m) with lattice parameter a = 8.0710(1) Å. It is unchanged between 3 and 320 K. The crystallographic formula is Ba2[Fe0.52(2)Mo0.48(2)]4a[Fe0.14(2)Mo0.86(2)]4bO5.9(2). NPD, electron s… Show more
The new double‐perovskite of title is prepared by decomposition of citrate precursors obtained from Ba(NO3)2, Fe(NO3)3, and (NH4)6Mo7O24 (air, 180→600 °C, 12 h) followed by thermal treatment under 5% H2/N2 (800 °C, 12 h).
The new double‐perovskite of title is prepared by decomposition of citrate precursors obtained from Ba(NO3)2, Fe(NO3)3, and (NH4)6Mo7O24 (air, 180→600 °C, 12 h) followed by thermal treatment under 5% H2/N2 (800 °C, 12 h).
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