Preparation of Nanosized α-Fe2O3 Using Mechanical Activation

被引：2
|
作者：
Kalinkin, A. M. [1 ]
Kuz'mich, Yu. V. [1 ]
Zalkind, O. A. [1 ]
Nevedomskii, V. N. [2 ]
机构：
[1] Russian Acad Sci, Tananaev Inst Chem, Fed Res Ctr, Kola Sci Ctr, Apatity 184209, Russia
[2] Ioffe Inst, St Petersburg 194021, Russia
来源：
RUSSIAN JOURNAL OF GENERAL CHEMISTRY | 2019年 / 89卷 / 12期
关键词：
hematite; mechanical activation; oleic acid; nanoscale state; HEMATITE NANOPARTICLES; STRUCTURAL-PROPERTIES; MAGNETIC-PROPERTIES; IRON-OXIDES; POWDER; AIR; TRANSFORMATION; RIETVELD;
D O I：
10.1134/S107036321912020X
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The processes occurring during the mechanical activation of a-Fe2O3 (hematite) in the presence of oleic acid in a centrifugal-planetary mill have been investigated. Mechanical activation for 10 h afforded hematite powder with particles size of 10-40 nm, as shown by means of X-ray diffraction analysis, FTIR spectroscopy, high-resolution transmission electron microscopy, and specific surface area measurements. Longer milling has led to mechanochemical transformation of hematite into Fe3O4 (magnetite).
引用
收藏
页码：2453 / 2457
页数：5
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