Controlled hydroxy-fluorination reaction of anatase to promote Mg2+ mobility in rechargeable magnesium batteries.
Chem Commun (Camb)
; 54(72): 10080-10083, 2018 Sep 06.
Article
in En
| MEDLINE
| ID: mdl-30128472
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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Chem Commun (Camb)
Journal subject:
QUIMICA
Year:
2018
Document type:
Article
Affiliation country: