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Tytuł artykułu

Effect of calcination and structural additives on EPR spectra of nanocrystalline cobalt oxides

Identyfikatory
Warianty tytułu
Konferencja
8th International Conference on Intermolecular and Magnetic Interaction in Matter, Nałeczów 8-10 September 2005
Języki publikacji
EN
Abstrakty
EN
Samples of nanocrystalline Co3O4 were prepared at various calcination temperatures and with various amounts of structural additives (CaO and Al2O3). The samples were characterized by X-ray diffraction. The average size and size distribution of nanoparticles have been calculated. Electron paramagnetic resonance (EPR) spectra of the samples were recorded at room temperature. The spectra have been attributed to divalent cobalt ions. Samples calcinated at higher temperatures showed an almost symmetrical, intensive EPR line. Temperature of calcination determined the character of the EPR spectra. The intensities of EPR spectra depended on the presence of CaO and Al2O3 additives
Wydawca
Rocznik
Strony
1095--1102
Opis fizyczny
Bibliogr. 27 poz.
Twórcy
autor
autor
autor
autor
  • Solid State Physics, Department of Physics, University of Athens, Panepistimiopolis, 157 84 Zografos, Greece, ngouskos@phys.uoa.gr
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW8-0003-0035
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