Shape-dependent force constant dynamics in anatase TiO<sub>2</sub> nanocrystals during lithium-ion insertion
<i>Operando</i> Raman spectroscopy analyzed morphology-dependent force constants in anatase TiO<sub>2</sub> nanocrystals under electrochemical lithiation. Pristine rhombic nanocrystals, nanospheres, and nanosheets exhibited ascending E<sub>g</sub> band positions. Real-time tracking of E<sub>g</sub> mode revealed force constant enhancements of 2.08, 2.60, and 2.76 N m<sup>-1</sup> per mol Li<sup>+</sup> for rhombic nanocrystals, nanospheres, and nanosheets, respectively.
Authors
- Kaikai Li (ORCID: https://orcid.org/0000-0003-4237-8696)
- Yuchuan Sun (ORCID: https://orcid.org/0000-0001-7379-3396)
- Shichen Wang (ORCID: https://orcid.org/0009-0005-9891-3557)
- M. D. Faysal
Institutions
- Harbin Institute of Technology (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc01898f
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Shenzhen Science and Technology Innovation Program
- Basic and Applied Basic Research Foundation of Guangdong Province