Synthesis and X-ray powder diffraction characterization of a new niobate crystal NaBa₂Li_0.6Nb_4.8Zn_0.2O₁₅

Abstract

A new niobate compound was synthesized for the first time in Na ₂ O-BaO-Li ₂ O-ZnO-Nb ₂ O ₅ system by solid state reaction. The new compound was studied by X-ray diffraction, electron probe, X-ray microanalysis, chemical analysis and SEM. The result of X-ray powder diffraction shows that NaBa ₂ Li _0.6 Nb _4.8 Zn _0.2 O ₁₅ belongs to orthorhombic tungsten bronze structure, with space group Pba2(32)and lattice parameters a = 12.6115(2)Å, b=12.4981(2)Å, C = 3.9479(3)Å.The X-ray powder diffraction lines of the compound were well indexed.

Keywords

niobate / zinc / niobate structure / XRD

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