Agata Daniszewska
supervisor: Mariusz Zdrojek
The purpose of the research is the development of a technology for the production of new materials with a 2D structure adapted to the industrial scale and testing the physico-chemical properties of the materials. The technology is to be based on a method of bulk material exfoliation in aqueous solution using shear forces without the use of any harmful chemicals. Following problems are being solved: the possibility of the process scalability and its capability, improvement of the structural quality of the material, defect testing, reduction of the production price due to the absence of harmful factors, the possibility of production processes optimization, control of structure of the obtained material.
A series of experiments of graphite exfoliation in liquid phase were carried out using high pressure homogenizer. The quality and the structure of the produced material were tested using Raman spectroscopy, UV-VIS spectroscopy, atomic force microscopy, scanning electron microscopy and thermogravimetric analysis. Preliminary optimization of the process parameters has been performed (e.g. type of input material and solvent, concentration, pressure, number of passes at given pressure).