Nano Archive

MnO and NiO nanoparticles: synthesis and magnetic properties

Ghosh, Moumita and Biswas, Kanishka and Sundaresan, A and Rao, C. N. R. (2005) MnO and NiO nanoparticles: synthesis and magnetic properties. Journal of Materials Chemistry, 16 . pp. 106-111.

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Abstract

Nanoparticles of MnO with average diameters in the 6–14 nm range have been prepared by the decomposition of manganese cupferronate in the presence of TOPO, under solvothermal conditions. Nanoparticles of NiO with average diameters in the 3–24 nm range have been prepared by the decomposition of nickel cupferronate or acetate under solvothermal conditions. The nanoparticles have been characterized by X-ray diffraction and transmission electron microscopy. Both MnO and NiO nanoparticles exhibit supermagnetism, accompanied by magnetic hysteresis below the blocking temperature (TB). The TB increases with the increase in particle size in the case of NiO, and exhibits the reverse trend in the case of MnO.

Item Type:Article
Subjects:Physical Science > Nanophysics
Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:3456
Deposited By:JNCASR
Deposited On:20 Jan 2009 09:51
Last Modified:12 Feb 2009 11:39

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