In other words how I can ensure the coated layer adhere to the membrane strongly
Bougdour Nadia
Prepare a reference sample of mxenes without the coating layer for comparison. Measure the crystal quality of the mxenes layers using techniques such as X-ray diffraction (XRD), transmission electron microscopy (TEM), or scanning electron microscopy (SEM). Compare the results between the mxenes coated layer and the reference sample. Use an AFM-IR hybrid spectroscopy system to study the adhesion properties and surface chemistry of the coated layer. The AFM mode will help visualize the topography of the sample, while the IR mode will provide information about the vibrational frequencies of the bonded atoms. Perform thermogravimetric analysis (TGA) on the samples to assess the thermal stability of the coated layer. The mass loss curve can provide insights into the degradation pathways and reaction mechanisms involved in the process. Conduct electrical characterization of the coated layer using techniques such as four-point probe resistivity measurements, electrochemical impedance spectroscopy (EIS), or scanning tunneling microscopy (STM). These measurements can provide information about the dielectric constant and surface roughness of the layer. Finally, test the electrical and thermal performance of the PTFE membrane with the coated layer by running open-circuit voltage (OCV) tests and conducting thermo-electrochemical measurements. Compare the results with the PTFE membrane without the coated layer.
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Simonas Ramanavičius
In case you need to evaluate the oxidation state of MXenes after deposition, Raman spectroscopy is the key method. You can read more: Chemosensors 2021, 9(8), 223; https://doi.org/10.3390/chemosensors9080223
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