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Magnetic Co3O4 nanowires, preparation and properties

Authors Ma, Mai Xia
Chen, Wei Meng
Guo, Lin
Li, Jing Hong
Chen, Chin Ping
Yang, Shi He View this author's profile
Issue Date 2012
Source Chinese Chemical Letters , v. 23, (7), July 2012, p. 851-854
Summary 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.
ISSN 1001-8417
Language English
Format Article
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