Preparation and magnetic property of chain-like cobalt microrods

被引：8

作者：

Chen, Huiyu ^{[1
,2
]}

Zhou, Ruihua ^{[1
,2
]}

Xu, Chunju ^{[1
,2
]}

Zhao, Guizhe ^{[1
,2
]}

Liu, Yaqing ^{[1
,2
]}

机构：

[1] North Univ China, Res Ctr Engn Technol Polymer Composites Shanxi Pr, Taiyuan 030051, Peoples R China

[2] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 06期

关键词：

Magnetic materials; Chemical synthesis; Magnetic properties; Microstructure; NANOCHAINS; TEMPLATE; NANOSTRUCTURES; NANOPARTICLES; FABRICATION;

D O I：

10.1016/j.materresbull.2013.02.070

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chain-like cobalt microrods with length of 10-13 mu m were solvothermally synthesized in water and ethanol mixed solution at 150 degrees C for 20 h. Sodium hypophosphite was used as reducing reagent and cetyltrimethylammonium bromide molecules served as cross-linkers. The chain-like cobalt microrods possessed hcp phase structure and were linearly assembled by several beads, and each bead was composed of many nanoparticles. The formation mechanism of such novel cobalt was discussed on the basis of controlled experiments. Compared to the cobalt bulk, the chain-like cobalt microrods obtained in this work possessed a decreased saturation magnetization (M-s, 151.9 emu/g) but an enhanced coercivity (H-c, 139.5 Oe) probably due to their novel morphology.(C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：2399 / 2402

页数：4

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