Ilkiv B. Effect of the structural state of carbon nanomaterials in their electronic structure

In this thesis using the ultrasoft X-ray emission spectroscopy a comprehensive study of the peculiarities of the electronic structure of nanoscale carbon materials has been carried out. Features of energy distribution of valence electrons in carbon nanomaterials have been analyzed. The influence of the degree of corrugation on the fine structure of the nanosheets CKа-bands has been revealed. Showing the intensity CKа-bands nanolystiv graphene in high-energy region was lower compared with that in oxidized graphene nanosheets. This can be explained by a decrease in the distance between the graphene layers from 0.75 nm to 0,337 nm and an increase in overlapping п-orbitals between curved graphene nanosheets. In the study of the electronic structure of carbon nanocapsules found that the energy of the 2p-electrons, which provide spn (2<n<3) о-bonds in the carbon layers of carbon nanocapsules greater than carbon onions. It is shown that due to distortion of layers (001) of hollow carbon nanocapsules decreases the difference in the degree of overlap прz-states and spn-hybrid orbitals on their surface compared with carbon nanocapsules, which are filled with metal nanoparticles. As well as the effect of changes in the energy distribution C2p-electron states in the silica-carbon materials by mechanoactivation mixture. Experimentally proved that mechanoactivation layers of highly carbon nanoparticles on silica causes electron transfer from carbon to silicon and oxygen, indicating that the interaction between the surface atoms nanosilica carbon atoms.