Synthesis of tetragonal zirconia nanoparticles via an aqueous solution-gel method

被引：14

作者：

Geuzens, E

Vanhoyland, G

D'Haen, J

Van Bael, MK

Van den Rul, H

Mullens, J

Van Poucke, LC

机构：

[1] Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium

[2] IMOMEC, B-3590 Diepenbeek, Belgium

来源：

EURO CERAMICS VIII, PTS 1-3 | 2004年 / 264-268卷

关键词：

ZrO2 nanocrystalline powder; tetragonal; aqueous solution-gel; TEM; HT-XRD;

D O I：

10.4028/www.scientific.net/KEM.264-268.343

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanoparticles of phase-pure tetragonal ZrO2 are obtained by means of a water-based solution-gel route. By coordinating the Zr4+-ion in a peroxo-citrato-complex, a stable aqueous Zr-precursor is prepared which is transformed into an amorphous gel by evaporation of the solvent. The gel is subsequently thermally decomposed in order to form the oxide. Tetragonal ZrO2 is already present at 500degreesC, as shown by means of a high temperature XRD study of the precursor. TEM images of the gel calcined at 750degreesC show crystalline nanoparticles of tetragonal ZrO2 with a mean particle size of 16 nm. From high resolution XRD and TEM Studies it is concluded that the calcination temperature has a significant effect on the particle size of ZrO2.

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收藏

页码：343 / 346

页数：4

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