Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 16, Issue 1, Pages 3-19Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.202001172
Keywords
defects; oxygen vacancy; TiO2; electrochemical energy storage; sodium-ion batteries
Categories
Funding
- National Nature Science Foundation of China [21975289, 22005346]
- Hunan Provincial Science and Technology Plan Project of China [2017TP1001, 2018RS3009, 2020JJ2042]
- Department of Science and Technology of Guangdong Province, China [2019A050510043]
- Guangzhou International Collaboration Fund [201907010009]
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Titanium dioxide (TiO2) is a promising anode material for sodium-ion batteries (SIBs) due to its low cost, natural abundance, nontoxicity, and excellent electrochemical stability. Oxygen vacancies in TiO2 can significantly enhance sodium storage performance, making oxygen-deficient TiO2 an important area of research for improving battery performance.
Titanium dioxide (TiO2) is a promising anode material for sodium-ion batteries (SIBs) due to its low cost, natural abundance, nontoxicity, and excellent electrochemical stability. Oxygen vacancies, the most common point defects in TiO2, can dramatically influence the physical and chemical properties of TiO2, including band structure, crystal structure and adsorption properties. Recent studies have demonstrated that oxygen-deficient TiO2 can significantly enhance sodium storage performance. Considering the importance of oxygen vacancies in modifying the properties of TiO2, the structural properties, common synthesis strategies, characterization techniques, as well as the contribution of oxygen-deficient TiO2 on initial Coulombic efficiency, cyclic stability, rate performance for sodium storage are comprehensively described in this review. Finally, some perspectives on the challenge and future opportunities for the development of oxygen-deficient TiO2 are proposed.
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