Issue 72, 2018

Controlled hydroxy-fluorination reaction of anatase to promote Mg2+ mobility in rechargeable magnesium batteries

Abstract

In anatase TiO2, substituting oxide anions with singly charged (F,OH) anions allows the controlled formation of cation vacancies, which act as reversible intercalation sites for Mg2+. 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.

Graphical abstract: Controlled hydroxy-fluorination reaction of anatase to promote Mg2+ mobility in rechargeable magnesium batteries

Supplementary files

Article information

Article type
Communication
Submitted
24 may 2018
Accepted
13 avq 2018
First published
13 avq 2018

Chem. Commun., 2018,54, 10080-10083

Controlled hydroxy-fluorination reaction of anatase to promote Mg2+ mobility in rechargeable magnesium batteries

J. Ma, T. Koketsu, Benjamin. J. Morgan, C. Legein, M. Body, P. Strasser and D. Dambournet, Chem. Commun., 2018, 54, 10080 DOI: 10.1039/C8CC04136A

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