Go toArchive
Browse byFacets
Bookbag ( 0 )
'Stoichiometric LiMn 2 0 4 Spinel Phase' in keywords
Results  1 Item
Sorted by   
Section
Publication Year
1998 (1)
1Author    C. B. Azzoni, M. C. Mozzati, A. Paleari, V. Massarotti, M. Bini, D. CapsoniRequires cookie*
 Title    Evidence of a Cationic Substitution Domain in Lithium-Manganese Spinels  
 Abstract    Magnetic susceptibility measurements and electron paramagnetic resonance spectra of samples prepared from the reactive system Mn0/Li 2 C0 3 with different starting Li cationic fraction x are analyzed, taking into account the structural and compositional information provided by x-ray diffrac-tion. Parent phases, as Mn 2 0 3 , Mn 3 0 4 and Li 2 Mn0 3 , arise together with the lithium-manganese spinel as a result of Li-deficiency or Li-excess with respect to the x = 0.33 composition pertinent to the stoichiometric LiMn 2 0 4 spinel. The data show that the spinel phase can sustain a partial Li-Mn substitution in the cation sites, according to compositional models described, for x > 0.33, by Lii +y Mnit 3y Mnf+ 2y 0 4 (Li-rich spinel) and, for x < 0.33, by Lii_| J/ |Mn^|Mn^| y |Mnfi| I/ |0 4 (Li-poor spinel). Paramagnetic resonance data of the Li-poor spinel phase are analyzed to discuss the possible oxidation state of Mn in the tetrahedral site. 
  Reference    Z. Naturforsch. 53a, 771—778 (1998); received June 22 1998 
  Published    1998 
  Keywords    Stoichiometric LiMn 2 0 4 Spinel Phase, Magnetic Susceptibility, Electron Paramagnetic Resonance 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_A/53/ZNA-1998-53a-0771.pdf 
 Identifier    ZNA-1998-53a-0771 
 Volume    53