Controlled hydroxy-Fluorination Reaction of Anatase to Promote Mg2+ Mobility in Rechargeable Magnesium Batteries

Jiwei Ma, Toshinari Koketsu, Benjamin Morgan, Christophe Legein, Monique Body, Peter Strasser, Damien Dambournet

Research output: Contribution to journalArticle

6 Citations (Scopus)
28 Downloads (Pure)

Abstract

In anatase TiO 2, substituting oxide anions with singly charged (F,OH) anions allows the controlled formation of cation vacancies, which act as reversible intercalation sites for Mg 2+. We show that ion-transport (diffusion coefficients) and intercalation (reversible capacity) properties are controlled by two critical parameters: the vacancy concentration and the local anionic environment. Our results emphasise the complexity of this behaviour, and highlight the potential benefits of chemically controlling cationic-defects in electrode materials for rechargeable multivalent-ion batteries.

Original languageEnglish
Pages (from-to)10080-10083
Number of pages4
JournalChemical Communications
Volume54
Issue number72
Early online date13 Aug 2018
DOIs
Publication statusPublished - 16 Sep 2018

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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