Abstract
The lyonsites are an underexplored crystal structure type; with precedent for compositional flexibility, this family of compounds has potential uses as inexpensive functional materials. This work examines cationic substitutions into Zn2.5−xCoxVMoO8 and the subsequent effect on the Zn site preference. All samples were annealed between 700 and 1000 °C, resulting in green-colored pastilles. Powder X-ray diffraction (PXRD) and neutron powder diffraction (NPD) confirmed the solid solution range to be 0≤x≤ 2.5, with all members isostructural with the parent compound. Magnetic susceptibility measurements indicated Curie-Weiss behavior in the high T region, confirming the presence of Co(II). Diffuse reflectance measurements are also presented to explain the color mechanisms of this series.
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