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Table 2 Assignment of typical Raman peaks in this work and reference. The theoretically calculated phonon energies of Ti3C2(OH)2 and Ti3C2F2 are listed for comparison. The vibration directions of atoms in a unit cell are also shown schematically. The unit of Raman shift is cm−1

From: In Situ High-Pressure X-ray Diffraction and Raman Spectroscopy Study of Ti3C2Tx MXene

 

ω1 (Eg)

ω2 (A1g)

ω3 (A1g)

ω4 (Eg)

ω5 (Eg)

ω6 (A1g)

ω7 (Eg)

This work

 

205.6

702.5

  

490.2

 

Ref [10, 23]

 

210

730

630

  

380

Ti3C2(OH)2 [23]

138

218

684

622

278

514

437

Ti3C2F2 [23]

128

190

694

612

231

465

 

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