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Titanium migration driven by Li vacancies in Li(1-x)Ti2O4 spinel
A Kitada1, A M Arevalo-Lopez, J P Attfield
1Department of Materials Science and Engineering, Kyoto University, Yoshida-honmachi, Sakyo, Kyoto 606-8501, Japan.
Chemical Communications (Cambridge, England)
|June 4, 2015
Abstract:
Gentle oxidation of lithium titanate spinel (LiTi2O4) with water at room temperature gives Li-deficient Li0.33Ti2O4. Combined X-ray and neutron Rietveld analysis shows that 28% of the Ti cations are displaced to alternative octahedral sites, in keeping with a proposed model based on Ti-migration limited by Li-vacancy concentration.
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