Nanostructure of A Glass-Like Carbon Characterized by X-ray Diffraction and Electron Energy Loss Spectroscopy

摘要

In our present study,phenolic resins heated at different temperatures from 600℃ to 3000℃ were analysised in terms of phase structure and chemical structure using X-ray diffraction and high resolution transmission electron microscopy equipped with an electron energy loss spectrometer (EELS). It is shown that materials appear to be amorphous with many micro-pores surrounded by crystalline graphite layers; the formation of the pore is due to the gas evolution reaction. Using the intensities of peaks in EELS CK-ionization edge which arise from transition of an atomic Is electron to the π* and σ* antibonding band-like states,the percentage of sp2-bonded carbon have been analyzed and the results reveal notable differences with heat treatment temperature.