Texture of spherical aluminum phosphate particles

被引：11

作者：

Kandori, K

Imazato, T

Yasukawa, A

Ishikawa, T

机构：

[1] School of Chemistry, Osaka University of Education, Kashiwara-shi Osaka 582

来源：

COLLOID AND POLYMER SCIENCE | 1996年 / 274卷 / 03期

关键词：

spherical metal phosphate; aluminum phosphate; texture; characterization; selective adsorption of H2O;

D O I：

10.1007/BF00665647

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Spherical aluminum phosphate particles with a mean particle diameter of 477 +/- 16 nm, produced from aging of a solution containing Al(NO3)(3), Na2HPO4 and HNO3 at 100 degrees C for 19 h in 20-cm(3) Teflon-lined screw-capped Pyrex test tube without agitation, were characterized by various means. It was revealed from x-ray diffraction measurement and transmission electron microscope observation that amorphous particles are formed by agglomeration of small primary particles. The particles exhibited a high selective adsorption of H2O though they adsorbed small. amount of N-2 and CO2. This characteristic phenomenon was explained by rehydration of Al3+ ions by H2O molecules that were penetrated into the particles.

引用

页码：290 / 294

页数：5

共 22 条

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