Manganese-doped zirconia nanocrystals
authors Clavel, G; Willinger, MG; Zitoun, D; Pinna, N
nationality International
journal EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
author keywords zirconium; manganese; doping; magnetic properties; nanoparticles
keywords METAL-OXIDE NANOPARTICLES; ELECTRON-PARAMAGNETIC-RESONANCE; NONAQUEOUS SYNTHESIS; CUBIC-PHASE; TETRAGONAL ZIRCONIA; MAGNETIC-PROPERTIES; SULFATED ZIRCONIA; SCALE SYNTHESIS; ZRO2; IONS
abstract In recent theoretical work, it was predicted that transition-metal-doped zirconia (ZrO(2)) can be ferromagnetic at room temperature with a dependence on the metal dopant and its oxidation state and concentration. M For experimental verification. of these predictions, manganese-doped ZrO(2) nanoparticles were synthesized. The synthesis was achieved by the benz l alcohol route, which led to high-quality nanocrystals with uniform size and shape. The obtained particles present a homogeneous distribution of the magnetic ion. The crystallographic phase was studied by XRD, electron diffraction, and high-resolution TEM. The doping efficiency was determined at the macroscopic level by chemical analysis and at the nanoscale level by electron energy loss spectrometry. The local structure of the manganese ions in the ZrO(2) matrix was characterized by electron paramagnetic resonance. Finally, the magnetic properties of the obtained nanocrystals were investigated by susceptibility measurements. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).
publisher WILEY-BLACKWELL
issn 1434-1948
year published 2008
issue 6
beginning page 863
ending page 868
digital object identifier (doi) 10.1002/ejic.200700977
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000254593900006
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