Preparation and growth mechanism of uniform colloidal copper oxide by the controlled double-jet precipitation

被引：144

作者：

Lee, SH ^{[1
]}

Her, YS ^{[1
]}

Matijevic, E ^{[1
]}

机构：

[1] CLARKSON UNIV,CTR ADV MAT PROC,POTSDAM,NY 13699

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1997年 / 186卷 / 01期

基金：

美国国家科学基金会;

关键词：

copper oxide; colloidal; colloids; formation mechanisms; monodispersed; double-jet precipitation; monodispersed colloids;

D O I：

10.1006/jcis.1996.4638

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：

Monodispersed crystalline CuO particles of different morphologies were synthesized by the controlled double-jet precipitation (CDJP) technique using NaOH and Cu(NO3)(2) as the reactants. The effects of temperature, reaction time, pH, and the concentrations of chemicals on the characteristics of final products were investigated. With lower [NaOH]/[Cu(NO3)(2)] molar ratios and temperatures, colloidal gerhardtite Cu-2(OH)(3)NO3 precipitated, while tenorite CuO particles of various morphologies were obtained at higher temperatures and [NaOH]/[Cu(NO3)(2)] ratios. Time resolved electron microscopy indicated that nanosized primary particles formed immediately after mixing the reactants, followed by aggregation into larger uniform particles of submicrometer size. (C) 1997 Academic Press

引用

页码：193 / 202

页数：10

共 19 条

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Baes C.F., 1976, HYDROLYSIS CATIONS

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