4.7 Article

Titanium migration driven by Li vacancies in Li1-xTi2O4 spinel

Journal

CHEMICAL COMMUNICATIONS
Volume 51, Issue 57, Pages 11359-11361

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc02800k

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Funding

  1. EPSRC
  2. STFC
  3. Kyoto University Global Frontier Project for Young Professionals (John-Mung Advanced Program)

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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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