Polyethylene glycol-assisted hydrothermal growth of magnetite nanowires: Synthesis and magnetic properties

被引：30
作者：
Harraz, Farid A. [1 ]
机构：
[1] CMRDI, Ctr Adv Mat Technol, Cairo 11421, Egypt
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 40卷 / 10期
关键词：
magnetite nanowires; nanoparticles; hydrothermal technique; PEG; magnetic propeties;
D O I：
10.1016/j.physe.2008.05.007
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Magnetite (Fe3O4) nanowires with diameters around 25 nm and lengths up to 1.5 mu m have been successfully synthesized using a simple polyethylene glycol (PEG)-assisted hydrothermal technique. Powder X-ray diffraction pattern, energy-dispersive X-ray spectroscopy, and selected-area electron diffraction measurements indicated that the as-synthesized product is pure single-phase Fe3O4 with a good crystalline state. The size, morphology, and structural features of the as-prepared Fe3O4 were investigated by transmission electron microscopy and scanning electron microscopy. Effects of reaction-controlling parameters such as the volume ratio of PEG to water, operating temperature, and duration of process have been investigated in detail. Vibrating sample magnetometer measurements show that Fe3O4 nanowires exhibit a ferrimagnetic behavior at room temperature: a saturation magnetization of 90.94 emu/g is obtained, which is essentially higher than the reported values. A reaction mechanism for the nanowire formation is also proposed. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：3131 / 3136
页数：6
相关论文
共 30 条
[1]   Raman spectroscopic library of natural and synthetic pigments (pre-similar to 1850 AD) [J].
Bell, IM ;
Clark, RJH ;
Gibbs, PJ .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1997, 53 (12) :2159-2179
[2]   Magnetic behavior of Fe3O4 nanostructure fabricated by template method [J].
Choi, K.-H. ;
Lee, S.-H. ;
Kim, Y.-R. ;
Malkinski, L. ;
Vovk, A. ;
Barnakov, Y. ;
Park, J.-H. ;
Jung, Y.-K. ;
Jung, J.-S. .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) :E861-E863
[3]   Synthesis of metal and metal oxide nanowire and nanotube arrays within a mesoporous silica template [J].
Crowley, TA ;
Ziegler, KJ ;
Lyons, DM ;
Erts, D ;
Olin, H ;
Morris, MA ;
Holmes, JD .
CHEMISTRY OF MATERIALS, 2003, 15 (18) :3518-3522
[4]  
DUDA F, 1992, PHYS REV LETT, V69, P1272
[5]   Synthesis and magnetic properties of single-crystalline magnetite nanowires [J].
Han, Qin ;
Liu, Zhenghui ;
Xu, Yingying ;
Zhang, Han .
JOURNAL OF CRYSTAL GROWTH, 2007, 307 (02) :483-489
[6]   Hydrothermal synthesis and characterization of single-crystalline Fe3O4 nanowires with high aspect ratio and uniformity [J].
He, Kai ;
Xu, Cheng-Yan ;
Zhen, Liang ;
Shao, Wen-Zhu .
MATERIALS LETTERS, 2007, 61 (14-15) :3159-3162
[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]   HELICAL MICROTUBULES OF GRAPHITIC CARBON [J].
IIJIMA, S .
NATURE, 1991, 354 (6348) :56-58
[9]   Temperature dependence of magnetization reversal in Co and Fe3O4 nanowire arrays [J].
Kazakova, O ;
Erts, D ;
Crowley, TA ;
Kulkarni, JS ;
Holmes, JD .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 286 :171-176
[10]   Control of magnetic behavior in Fe3O4 nanostructures [J].
Ko, SP ;
Soh, JY ;
Kim, YK .
IEEE TRANSACTIONS ON MAGNETICS, 2005, 41 (10) :3304-3306
123