Chemical synthesis of highly magnetic, air-stable silica-coated iron particles

被引：0

作者：

Jiang, HY ^{[1
]}

Zhong, W ^{[1
]}

Tang, NJ ^{[1
]}

Liu, XS ^{[1
]}

Du, YW ^{[1
]}

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2003年 / 20卷 / 10期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Highly magnetic and air-stable silica-coated Fe particles have been prepared by a rapid and simple method. The specific magnetization of the sample can be as high as 201 Am-2/kg even including silica, which is a non-magnetic material. The iron particle coated with silica is passivated and protected from oxidation. The influences of H-2 reduction temperature on structure and magnetic properties are also studied.

引用

页码：1855 / 1857

页数：3

共 15 条

[1] Synthesis of ethylene-glycol-based magnetic fluid using silica-coated iron particle [J].

Atarashi, T ;

Kim, YS ;

Fujita, T ;

Nakatsuka, K .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 201 :7-10

[2] Synthesis and magnetic properties of gold-iron-gold nanocomposites [J].

Carpenter, EE ;

Kumbhar, A ;

Wiemann, JA ;

Srikanth, H ;

Wiggins, J ;

Zhou, WL ;

O'Connor, CJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 286 (01) :81-86

[3]

Cullity B.D., 1972, Introduction to Magnetic Materials

[4] Passivation of α-Fe nanoparticle by epitaxial γ-Fe2O3 shell [J].

Fung, KK ;

Qin, BX ;

Zhang, XX .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 286 (01) :135-138

[5] Metal (Fe, Co, Ni) nanoparticles in silica gels:: Preparation and magnetic properties [J].

Lutz, T ;

Estournès, C ;

Guille, JL .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 1998, 13 (1-3) :929-932

[6] Oxidation of phosphated iron powders [J].

Rebeyrat, S ;

Grosseau-Poussard, JL ;

Dinhut, JF ;

Renault, PO .

THIN SOLID FILMS, 2000, 379 (1-2) :139-146

[7]

SERGEI I, 2001, ANGEW CHEM INT EDIT, V40, P44

[8] Magnetic studies of polymer-coated Fe nanoparticles synthesized by microwave plasma polymerization [J].

Srikanth, H ;

Hajndl, R ;

Chirinos, C ;

Sanders, J ;

Sampath, A ;

Sudarshan, TS .

APPLIED PHYSICS LETTERS, 2001, 79 (21) :3503-3505

[9] Sonochemical synthesis of iron colloids [J].

Suslick, KS ;

Fang, MM ;

Hyeon, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (47) :11960-11961

[10] PREPARATION OF IRON POWDERS CONSISTING OF SUBMICROSCOPIC ELONGATED PARTICLES BY PSEUDOMORPHIC REDUCTION IRON OXIDES [J].

VANDERGIESSEN, AA ;

KLOMP, CJ .

IEEE TRANSACTIONS ON MAGNETICS, 1969, MAG5 (03) :317-+

← 1 2 →