facile synthesis and characterization of zirconia nanoparticles by decomposition of a novel inorganic precursor

in current study, zirconia (zro₂) nanoparticles have been synthesized through the decomposition of a nano-structured zr(iv) supramolecular compound, (pydah)₂[zr(pydc)₃].5h₂o (1), where [pyda.h]⁺ = 2,6-diaminopyridinium, and [pydc]^2- = 2,6-pyridinedicarboxylate, as a new precursor. the compound 1 has been synthesized by sonochemical method and characterized by field emission scanning electron microscope (fesem), x-ray powder diffraction (xrd) and elemental analyses. the morphology, structure, and composition of the as-synthesized nanostructures have been confirmed by xrd and fesem analyses. the xrd pattern of the residue obtained from calcination of compound 1 at 700 °c under air atmosphere provides that crystal system was mixture of monoclinic (m) and tetragonal (t) with particle size about 28 nm.