CoFe2O4 nanoparticles hosted in silica xerogels

被引：21
作者：
Huang, XH
Chen, ZH [1 ]
机构：
[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Ceram, Biomat & Tissue Engn Ctr, Shanghai 200050, Peoples R China
来源：
SCRIPTA MATERIALIA | 2006年 / 54卷 / 02期
关键词：
crystal growth; sol-gel; nanocomposite; magnetic properties;
D O I：
10.1016/j.scriptamat.2005.09.043
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Magnetic nanocomposites CoFe2O4/SiO2 were synthesized by a sol-gel process. By controlling the thermal treatment temperature and through the addition of hydrochloric acid, it was possible to obtain composites with different particle sizes and magnetic properties. It was remarkable that the addition of acids to the sols provided a way to increase average particle size and to narrow the particle size distribution of cobalt ferrite in the composites. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：169 / 173
页数：5
相关论文
共 15 条
[1]   Controlled room temperature synthesis of CoFe2O4 nanoparticles through a block copolymer nanoreactor route [J].
Ahmed, SR ;
Kofinas, P .
MACROMOLECULES, 2002, 35 (09) :3338-3341
[2]  
BERKOWITZ AS, 1959, J APPL PHYS, V30, P134
[3]   Magnetic characterization of nanocrystalline Ni-Zn ferrite powder prepared by the glyoxylate precursor method [J].
Caizer, C ;
Stefanescu, M .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2002, 35 (23) :3035-3040
[4]   Sol-gel preparation and characterization of Ni-SiO2 nanocomposites [J].
Ennas, G ;
Mei, A ;
Musinu, A ;
Piccaluga, G ;
Pinna, G ;
Solinas, S .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 232 :587-593
[5]   Photomagnetism and structure in cobalt ferrite nanoparticles [J].
Giri, AK ;
Kirkpatrick, EM ;
Moongkhamklang, P ;
Majetich, SA ;
Harris, VG .
APPLIED PHYSICS LETTERS, 2002, 80 (13) :2341-2343
[6]   Effect of light on the magnetic properties of cobalt ferrite nanoparticles [J].
Giri, AK ;
Pellerin, K ;
Pongsaksawad, W ;
Sorescu, M ;
Majetich, SA .
IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (05) :3029-3031
[7]   QUANTUM SIZE EFFECTS IN METAL PARTICLES [J].
HALPERIN, WP .
REVIEWS OF MODERN PHYSICS, 1986, 58 (03) :533-606
[8]   COLLECTIVE RESONANCES AND RESPONSE PROPERTIES OF ELECTRONS IN METAL-CLUSTERS [J].
KRESIN, VV .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1992, 220 (01) :1-52
[9]  
MATSUI A, 1990, BR CERAM T J, V89, P203
[10]   Preparation of narrow size distribution superparamagnetic γ-Fe2O3 nanoparticles in a sol-gel transparent SiO2 matrix [J].
Moreno, EM ;
Zayat, M ;
Morales, MP ;
Serna, CJ ;
Roig, A ;
Levy, D .
LANGMUIR, 2002, 18 (12) :4972-4978
12