Preparation of sub-micrometer LnPO4 particles (Ln = La, Ce)

被引：18

作者：

Feldmann, C ^{[1
]}

Jungk, HO ^{[1
]}

机构：

[1] Philips Res Labs, D-52066 Aachen, Germany

来源：

JOURNAL OF MATERIALS SCIENCE | 2002年 / 37卷 / 15期

关键词：

Agglomeration - Heating - Laser applications - Particle size analysis - Scanning electron microscopy - X ray powder diffraction;

D O I：

10.1023/A:1016131016637

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sub-micrometer LnPO(4) particles (Ln = La, Ce) are prepared by heating of Ln(CH3COO)(3) . 2H(2)O and (NH4)H2PO4 in diethylene glycol (DEG) at 180degreesC. Based on this so-called polyol method, spherical LnPO(4) particles 30 to 180 nm in size can be realised. According to X-ray powder diffraction patterns, the phosphates turn out to be highly crystalline right after preparation. The particle size is investigated with scanning electron microscopy in the powder state as well as with laser diffraction methods in the DEG suspension. Furthermore, the agglomeration behaviour of the phosphate particles in DEG suspension after mixing with water and the properties of re-suspended powder material in water is studied. (C) 2002 Kluwer Academic Publishers.

引用

页码：3251 / 3254

页数：4

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