Growth of single-crystal magnetite nanowires from Fe3O4 nanoparticles in a surfactant-free hydrothermal process

被引:84
作者
Lian, SY [1 ]
Wang, EB [1 ]
Gao, L [1 ]
Kang, ZH [1 ]
Wu, D [1 ]
Lan, Y [1 ]
Xu, L [1 ]
机构
[1] NE Normal Univ, Dept Chem, Inst Polyoxometalate Chem, Changchun 130024, Jilin, Peoples R China
基金
中国国家自然科学基金;
关键词
nanowires; crystal growth; TEM; hydrothermal;
D O I
10.1016/j.ssc.2004.08.013
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 [凝聚态物理];
摘要
Single-crystal magnetite nanowires with average diameter of ca. 20 nm and length of up to several micrometers were prepared by a simple alkaline surfactant-free hydrothermal process. The crystallinity, purity, morphology, and structural features of the as-prepared magnetite nanowires were investigated by powder X-ray diffraction, transmission electron microscopy (TEM) and selected area electron diffraction. The composition and length of nanowires depends on the pH, with higher pH favoring longer nanowires composed entirely of Fe3O4. A mechanism for nanowire growth is proposed. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:375 / 378
页数:4
相关论文
共 31 条
[1]
[Anonymous], FERROMAGNETIC MAT
[2]
BAO J, 2003, ADV MATER, V13, P1631
[3]
Electron holography of ferromagnetic nanowires [J].
Beeli, C .
NANOSTRUCTURED MATERIALS, 1999, 11 (06) :697-707
[4]
Novel photocatalyst: Titania-coated magnetite. Activity and photodissolution [J].
Beydoun, D ;
Amal, R ;
Low, GKC ;
McEvoy, S .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (18) :4387-4396
[5]
Cornell R.M., 1996, The Iron Oxide: Structure, Properties, Reactions, Occurance and Uses
[6]
Synthesis of Fe2O3 nanowires by oxidation of iron [J].
Fu, YY ;
Chen, J ;
Zhang, H .
CHEMICAL PHYSICS LETTERS, 2001, 350 (5-6) :491-494
[7]
Chemistry and physics in one dimension: Synthesis and properties of nanowires and nanotubes [J].
Hu, JT ;
Odom, TW ;
Lieber, CM .
ACCOUNTS OF CHEMICAL RESEARCH, 1999, 32 (05) :435-445
[8]
Chemical synthesis of magnetic nanoparticles [J].
Hyeon, T .
CHEMICAL COMMUNICATIONS, 2003, (08) :927-934
[9]
Synthesis and characterization of nanometer-size Fe3O4 and gamma-Fe2O3 particles [J].
Kang, YS ;
Risbud, S ;
Rabolt, JF ;
Stroeve, P .
CHEMISTRY OF MATERIALS, 1996, 8 (09) :2209-&
[10]
Formation of titanium oxide nanotube [J].
Kasuga, T ;
Hiramatsu, M ;
Hoson, A ;
Sekino, T ;
Niihara, K .
LANGMUIR, 1998, 14 (12) :3160-3163