Chieh-Yang Lin

MXene flakes are two-dimensional materials obtained by selectively removing elements from MAX phases. Identification methods:

1. MXene flakes have a specific diffraction pattern (XRD), which differs from the original MAX phase.

2. High-resolution electron microscopy (HRTEM) is used to visualize the atomic structure of MXene flakes. This helps to confirm the presence of a layered structure and estimate the thickness of the flakes.

3. Energy-dispersive X-ray spectroscopy (EDS):

is used for chemical analysis of samples. It allows determining the elemental composition of MXene flakes and confirming the removal of certain elements from the MAX phase.

4. FTIR spectra provide information about the functional groups on the surface of MXene flakes. For example, hydroxyl groups (-OH) present on the surface show characteristic absorption bands.

Using the selected analysis methods, data on the structure, composition and properties of MXene flakes are collected.