Preparation and characterization of γ-Fe2O3 nanoparticles in SBA15 host material

被引：24

作者：

Jung, J. -S. ^{[1
]}

Choi, K. -H.

Jung, Y. -K.

Lee, S. H.

Golub, V. O.

Malkinski, L.

O'Connor, C. J.

机构：

[1] Kangnung Natl Univ, Dept Chem, Kangnung 210702, South Korea

[2] Kangnung Natl Univ, Dept Nat Sci, Kangnung 210702, South Korea

[3] Yonsei Univ, Dept Chem, Wonju 220710, South Korea

[4] Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

nanoparticle; ferromagnetic material; mesoporous material;

D O I：

10.1016/j.jmmm.2003.12.700

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The recent discovery of uniform mesoporous SBA15 (Santa Barbara amorphous) consisting of long-range channels offers new possibilities in a previously inaccessible size range by inclusion chemistry. SBA15 is an all silica mesoporous molecular sieve possessing one-dimensional hexagonal channels with 6 nm pore diameter. In this work we report on technology and magnetic properties of gamma-Fe2O3 nanoparticles entrapped inside SBA15 channels. They have homogeneous distribution throughout the SBA15 and larger particles at the external surface are absent. Both DC magnetization measurements and transmission electron microscopy show a good controlled insertion of gamma-Fe2O3 into the host channel. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：E1157 / E1159

页数：3

共 5 条

[1] Magnetic modification of the external surfaces in the MCM-41 porous silica: Synthesis, characterization, and functionalization [J].

Bourlinos, AB ;

Simopoulos, A ;

Boukos, N ;

Petridis, D .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (31) :7432-7437

[2] Synthesis of highly crystalline and monodisperse maghemite nanocrystallites without a size-selection process [J].

Hyeon, T ;

Lee, SS ;

Park, J ;

Chung, Y ;

Bin Na, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (51) :12798-12801

[3] Structural properties of chemically synthesized nanostructured Ni and Ni:Ni3C nanocomposites [J].

Leslie-Pelecky, DL ;

Zhang, XQ ;

Kim, SH ;

Bonder, M ;

Rieke, RD .

CHEMISTRY OF MATERIALS, 1998, 10 (01) :164-171

[4] Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores [J].

Zhao, DY ;

Feng, JL ;

Huo, QS ;

Melosh, N ;

Fredrickson, GH ;

Chmelka, BF ;

Stucky, GD .

SCIENCE, 1998, 279 (5350) :548-552

[5]

ZONGTAO Z, 2001, J PHYS CHEM B, V105, P6755

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