Preparation and Crystal Structures of SomeAIVB2IIO4Compounds: Powder X-Ray Diffraction and Rietveld Analysis

Abstract

TheAIVB2IIO4compounds such as cadmium tin oxide (Cd2SnO4or CTO) and zinc tin oxide (Zn2SnO4or ZTO) are synthesized by solid state reaction of the subsequent binary oxides. The synthesized powders were analyzed through the powder X-ray diffraction (PXRD). Cell search done on the PXRD patterns shows that the Cd2SnO4crystallizes in orthorhombic structure with space groupPbamand the cell parameters asa=5.568(2) Å,b=9.894(3) Å, andc=3.193(1) Å and the Zn2SnO4crystallizes as cubic with the space groupFd3 -mand with the cell parametera=8.660(2) Å. Rietveld refinement was done on the PXRD patterns to get the crystal structure of the Cd2SnO4and Zn2SnO4and to define the site deficiency of atoms which causes the electrical properties of the materials.