Study of grain size distribution in nanocrystalline iron oxides synthesized by hydrothermal method

被引：2
|
作者：
Fedyk, R
Chudoba, T
Presz, A
Lojkowski, W
Kurzydlowski, KJ
机构：
[1] Warsaw Univ Technol, Fac Mat Sci & Engn, PL-02507 Warsaw, Poland
[2] Polish Acad Sci, High Pressure Res Ctr, PL-01142 Warsaw, Poland
来源：
INTERFACIAL EFFECTS AND NOVEL PROPERTIES OF NANOMATERIALS | 2003年 / 94卷
关键词：
hydrothermal synthesis; iron oxides; nanopowders; microwave synthesis; grain size; image analysis; stereology;
D O I：
10.4028/www.scientific.net/SSP.94.239
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel microwave reactor was used to hydrothermally synthesize nanopowders of iron oxides under a pressure of up to 10 MPa and temperatures of up to 250 degreesC. At reactions time as short as 5 minutes it was possible to synthesize powders with grain size in the range 10 - 100 nm. Proper selections of the substrates and their concentration enabled the grain size and phase composition to be controlled to some extent. Pure hematite, maghemite and magnetite were obtained. The grain size and distribution were determined by image analysis of the powders.
引用
收藏
页码：239 / 242
页数：4
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