Facile and selected-control synthesis of β-MnO2 nanorods and their magnetic properties

被引:41
作者
Wang, Guangli [1 ]
Tang, Bo [1 ]
Zhuo, Linhai [1 ]
Ge, Jiechao [1 ]
Xue, Mei [1 ]
机构
[1] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Shandong 250014, Peoples R China
关键词
beta-manganese dioxide; nanostructures; hydrothermal synthesis; magnetic properties;
D O I
10.1002/ejic.200500983
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Single crystal beta-MnO2 nanorods were successfully synthesized employing a facile in-situ redox precipitation hydrothermal process. The effects of various experimental conditions on the morphology of the products were investigated. The mechanism of formation of the nanorods was investigated and discussed based on the experimental results. The magnetic measurement of the nanorods with a diameter of 25-40 nm and a length of 240-440 nm indicates that the Noel magnetic transition temperature is about 6 K higher than that of the bulk beta-MnO2 crystal. (c) Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:2313 / 2317
页数:5
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