ИСТИНА

Combination of sustainability, high specific surface area and conductivity makes carbon nanomaterials to be wildly used as parts of composite materials, in supercapacitors and so on [1]. The main thermodynamic parameters of these materials are enthalpies of combustion (ΔcH°) and formation (ΔfH°) which values are very sensitive to the presence of nitrogen, morphology and defectiveness [2]. The aim of this work was to find correlations between values of ΔcH°, specific surface area and hetero-substitution for nitrogen-doped carbon nanoflakes (N-CNF). All materials were characterized by Raman spectroscopy, elemental analysis, X-ray photoelectron spectroscopy (XPS) and low-temperature nitrogen adsorption. Enthalpies of combustion were determined by the differential scanning calorimetry method. Enthalpies of formation were calculated according to Hess’s law.