Uniform Colloidal Zinc Compounds of Various Morphologies

被引：66

作者：

Castellano, Maurizio ^{[1
]}

Matijevic, Egon ^{[1
]}

机构：

[1] Clarkson Univ, Dept Chem, Potsdam, NY 13676 USA

来源：

CHEMISTRY OF MATERIALS | 1989年 / 1卷 / 01期

关键词：

D O I：

10.1021/cm00001a018

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：

The preparation of finely dispersed zinc compounds consisting of uniform particles is described. Aging at elevated temperatures (similar to 90 degrees C) of aqueous solutions of zinc nitrate or zinc chloride in the presence of urea resulted in precipitation of uniform rodlike basic zinc carbonate particles. These solids show X-ray characteristics of crystalline hydrozincite. In the presence of sulfate ions amorphous spherical particles of narrow size distribution of the same chemical composition are generated. On calcination both kinds of solids change to zinc oxide yet retain the original shape. In the presence of NaH2PO4 and urea, aqueous zinc salt solutions on aging yield rather uniform amorphous spherical zinc basic phosphate particles, which on calcination lose water.

引用

页码：78 / 82

页数：6