Figure shows the Raman spectra of the EE-Ti3C2 and EE-Ti3CN and their MAX phase precursors. For EE-Ti3C2 that has undergone completed etching peaks at 202 and 661 cm -1 originate from the A1g (Ti, Al, C, O, F) and C(A1g) mode of Ti3AlC2 MAX phases are no longer observable. Conversely, new peaks were detected at 210 and 727 cm -1 corresponding to the A1g (Ti, C, O, F) and C(A1g) mode of EE-Ti3C2. A broad peak was detected from 230 to 470 and 580 to 730 cm -1 , the literature attributes the region of this peak to the in-plane vibration of the terminal group on the MXene surface. The peak at around 123 cm -1 is the resonant peak which is only detected when an excitation wavelength of 785 nm is used. For EE-Ti3CN, the A1g (C, N) peak appeared at 714 cm -1 . However, the A1g (Ti, C, N, O, F) peak and A1g (Ti, C, Al, N) peak were not observed. This might be attributed to the peak broadening induced by the random arrangement of carbon and nitrogen for the over-etched EE-Ti3C2. This shows that despite the electrochemical etching being more selective to the aluminium than the MXene, over-etching would still oxidise the MXene layer.