Magnetic Nanoparticles in MCM-41 Type Mesoporous Silica

被引：9
|
作者：
Surowiec, Z. [1 ]
Bierska-Piech, B. [2 ]
Wiertel, M. [1 ]
Budzynski, M. [1 ]
Goworek, J. [3 ]
机构：
[1] Marie Curie Sklodowska Univ, Inst Phys, PL-20031 Lublin, Poland
[2] Univ Silesia, Inst Mat Sci, PL-40007 Katowice, Poland
[3] Marie Curie Sklodowska Univ, Fac Chem, Dept Adsorpt, PL-20031 Lublin, Poland
来源：
ACTA PHYSICA POLONICA A | 2008年 / 114卷 / 06期
关键词：
D O I：
10.12693/APhysPolA.114.1605
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Structural phase transformations and magnetic properties of mesoporous MCM-41 template modified with iron and nickel salts were studied by nitrogen physisorption, X-ray diffraction, Mossbauer spectroscopy and transmission electron microscopy. The FeNi-oxide or the bimetallic crystal structure is formed for low and high Ni concentrations, respectively. The average size of nanoparticles is about 10 nm. About 70% of particles exist in a superparamagnetic state at room temperature.
引用
收藏
页码：1605 / 1613
页数：9
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