Cosolvent-assisted spray pyrolysis for the generation of metal particles

被引：44

作者：

Kim, JH

Babushok, VI

Germer, TA

Mulholland, GW

Ehrman, SH ^{[1
]}

机构：

[1] Univ Maryland, Dept Chem Engn, College Pk, MD 20742 USA

[2] NIST, Fire Res Div, Gaithersburg, MD 20899 USA

[3] NIST, Opt Technol Div, Gaithersburg, MD 20899 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2003年 / 18卷 / 07期

关键词：

D O I：

10.1557/JMR.2003.0222

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A cosolvent-assisted spray pyrolysis process was developed for the formation of phase-pure metal particles from metal salt precursors without the direct addition of hydrogen or other reducing gas. Generation of phase-pure copper and nickel particles from aqueous solutions of copper acetate, copper nitrate, and nickel nitrate over the temperature range of 450 to 1000 degreesC was demonstrated. Addition of ethanol as a cosolvent plays a crucial role in producing phase-pure metal powders. Results of a modeling study of ethanol decomposition kinetics suggest that cosolvent decomposition creates a strong reducing atmosphere during spray pyrolysis via in situ production of hydrogen and carbon monoxide.

引用

页码：1614 / 1622

页数：9

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