4.5 Article

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

Journal

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 11, Pages 2313-2317

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.200500983

Keywords

beta-manganese dioxide; nanostructures; hydrothermal synthesis; magnetic properties

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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.

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