Investigation of the Process of Synthesizing ZrO2 Nanoparticles by Heating of Alcohol-Aqueous Salt Solutions

Abstract

Abstract: The reaction mechanism and parameters that influenced the process of heating of ZrOCl₂ and Y(NO₃)₃ solution with an
alcohol-water mixture as a solvent to synthesize ZrO₂(3Y) nanoparticles, the influence of the reaction temperature and time on the synthesizing
process and final powder characteristics were investigated. It revealed that the reaction process could be divided into several steps according
to the occurring of different kinds of precipitates. As a result, Y(OH)₃ distributed uniformly in the gel of Zr(OH)₄ and then, when the
calcination temperature rose, the monoclinic phase in the powder decreased. Only when the reaction temperature was high enough that the dielectric constant decreased to <25, the precipitation could happen. To avoid
agglomeration, reaction time should be long enough to ensure the solution react complete.

Key words: ZrO₂ nanoparticles, heating of alcohol-aqueous salt solutions, process

CLC Number:

TF123

LI Wei,GAO Lian,GUO Jing-Kun. Investigation of the Process of Synthesizing ZrO₂ Nanoparticles by Heating of Alcohol-Aqueous Salt Solutions[J]. Journal of Inorganic Materials.

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Investigation of the Process of Synthesizing ZrO₂ Nanoparticles by Heating of Alcohol-Aqueous Salt Solutions

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