Shape-dependent force constant dynamics in anatase TiO2 nanocrystals during lithium-ion insertion

Yuchuan Sun; Shichen Wang; M. D. Faysal; Kaikai Li

doi:10.1039/d5cc01898f

Shape-dependent force constant dynamics in anatase TiO₂ nanocrystals during lithium-ion insertion

Yuchuan Sun
, Shichen Wang
, M. D. Faysal
, Kaikai Li^*

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Operando Raman spectroscopy analyzed morphology-dependent force constants in anatase TiO₂ nanocrystals under electrochemical lithiation. Pristine rhombic nanocrystals, nanospheres, and nanosheets exhibited ascending E_g band positions. Real-time tracking of E_g mode revealed force constant enhancements of 2.08, 2.60, and 2.76 N m⁻¹ per mol Li⁺ for rhombic nanocrystals, nanospheres, and nanosheets, respectively.

Original language	English
Pages (from-to)	10146-10149
Number of pages	4
Journal	Chemical Communications
Volume	61
Issue number	55
DOIs	https://doi.org/10.1039/d5cc01898f
State	Published - 3 Jun 2025
Externally published	Yes

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10.1039/d5cc01898f

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title = "Shape-dependent force constant dynamics in anatase TiO2 nanocrystals during lithium-ion insertion",

abstract = "Operando Raman spectroscopy analyzed morphology-dependent force constants in anatase TiO2 nanocrystals under electrochemical lithiation. Pristine rhombic nanocrystals, nanospheres, and nanosheets exhibited ascending Eg band positions. Real-time tracking of Eg mode revealed force constant enhancements of 2.08, 2.60, and 2.76 N m−1 per mol Li+ for rhombic nanocrystals, nanospheres, and nanosheets, respectively.",

author = "Yuchuan Sun and Shichen Wang and Faysal, \{M. D.\} and Kaikai Li",

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AU - Sun, Yuchuan

AU - Wang, Shichen

AU - Faysal, M. D.

AU - Li, Kaikai

PY - 2025/6/3

Y1 - 2025/6/3

N2 - Operando Raman spectroscopy analyzed morphology-dependent force constants in anatase TiO2 nanocrystals under electrochemical lithiation. Pristine rhombic nanocrystals, nanospheres, and nanosheets exhibited ascending Eg band positions. Real-time tracking of Eg mode revealed force constant enhancements of 2.08, 2.60, and 2.76 N m−1 per mol Li+ for rhombic nanocrystals, nanospheres, and nanosheets, respectively.

AB - Operando Raman spectroscopy analyzed morphology-dependent force constants in anatase TiO2 nanocrystals under electrochemical lithiation. Pristine rhombic nanocrystals, nanospheres, and nanosheets exhibited ascending Eg band positions. Real-time tracking of Eg mode revealed force constant enhancements of 2.08, 2.60, and 2.76 N m−1 per mol Li+ for rhombic nanocrystals, nanospheres, and nanosheets, respectively.

UR - https://www.scopus.com/pages/publications/105008014201

U2 - 10.1039/d5cc01898f

DO - 10.1039/d5cc01898f

M3 - 文章

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AN - SCOPUS:105008014201

SN - 1359-7345

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JO - Chemical Communications

JF - Chemical Communications

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ER -

Shape-dependent force constant dynamics in anatase TiO₂ nanocrystals during lithium-ion insertion

Abstract

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