Magnetic Co3O4 nanowires, preparation and properties

被引：3

作者：

Ma, Mai Xia ^{[1
,5
]}

Chen, Wei Meng ^{[2
]}

Guo, Lin ^{[1
]}

Li, Jing Hong ^{[3
]}

Chen, Chin Ping ^{[2
]}

Yang, Shi He ^{[1
,4
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm, Beijing 100191, Peoples R China

[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[3] Tsinghua Univ, Dept Chem, Beijing Key Lab Microanalyt Methods & Instrumenta, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Beijing 100084, Peoples R China

[4] Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong, Hong Kong, Peoples R China

[5] Langfang Teachers Coll, Fac Chem & Mat Sci, Langfang 065000, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2012年 / 23卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Nanostructures; Oxides; Magnetic properties; ARRAYS;

D O I：

10.1016/j.cclet.2012.05.013

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Co3O4 nanowires have been successfully synthesized via modified template method. The as-prepared products have been characterized by EDS, TEM and HRTEM analysis. The magnetic behavior of it is investigated by a magnetic property measurement system. The nanowires exhibit some novel magnetic properties, which are different from its bulk material. The temperature dependence curves of magnetization in zero-field-cooling and field-cooling exhibit two peaks of antiferromagnetic at blocking temperature of similar to 23 K and similar to 31 K, respectively. The field dependent M(H) curves of the Co3O4 nanowires at T = 5 and 300 K both exhibit PM properties. Moreover, the diameter of nanowires is hence determined according to the finite size effect as approximately 7-11 nm, in consistent with the characterizations by HRTEM. (C) 2012 Lin Guo. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

引用

页码：851 / 854

页数：4

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