Template synthesis of magnetic one-dimensional nanostructured spinel MFe2O4 (M = Ni, Mg, Co)

被引：49
作者：
Gu, Min
Yue, Bin
Bao, Renlie
He, Heyong
机构：
[1] Fudan Univ, Dept Chem, Adv Mat Lab, Shanghai 200433, Peoples R China
[2] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Adv Mat Lab, Shanghai 200433, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 06期
关键词：
Nanostructures; Oxides; Chemical synthesis; Magnetic properties; MESOPOROUS SILICA SBA-15; NANOWIRE FORMATION; CATALYTIC GROWTH; METAL-OXIDES; THIN-FILMS; OXIDATION; SURFACE; ROUTE; NANOPARTICLES; DECOMPOSITION;
D O I：
10.1016/j.materresbull.2008.11.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The iron nitrate and suitable salt of nickel, cobalt, or magnesium with molar ratio of 2:1 were introduced into the pores of mesoporous silica SBA-15 via two-solvent method. The thermal decomposition of the precursors and the formation of one-dimensional nanostructured spinel ferrite in SBA-15 pores were monitored by XRD, TG-DTA, N-2 adsorption-desorption, and TEM. The pure spinel MFe2O4 nanowires obtained through complete removal of the silica template with aqueous NaOH solution were confirmed by TEM and HRTEM. The spinel MFe2O4 nanowires showed increasing normal configuration and exhibited superparamagnetism in comparison with the bulk ones. (C) 2008 Elsevier Ltd. All rights reserved.
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收藏
页码：1422 / 1427
页数：6
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