Kinetic study on nano-ZrO2 from ZrOCl2 solution modified with diglycol

Abstract

Monodispersed yttria stabilized ZrO2 nanocrystals were synthesized from zirconium oxyhydrate sols chelated with diglycol. The particle growth kinetics as a function of the concentration of ZrOCl2 solution and molar ratio of ZrOCl2: diglycol was investigated. It was demonstrated that the rate constant of the particle growth and the final particle size increased with increasing the concentration of ZrOCl2 solution and decreasing the molar ratio of ZrOCl2: diglycol. High-resolution transmission electron microscopy (HRTEM) as well as powder X-ray diffraction showed that the as-synthesized nanoparticles were well crystalline.