Aromatic structures of carbonaceous materials and soot inferred by spectroscopic analysis

摘要: Abstract UV-visible spectroscopy provides an extremely powerful methodology to investigate molecular structures of high weight aromatic materials, not amenable be characterized by analytical techniques as gas-chromatography, mass spectrometry, etc. However, the interpretation spectroscopic data relative complex mixtures is difficult and, when technique applied solid samples, could lead questionable results. In this work a very polar and solvent N-methyl-pirrolidinone (NMP) was utilized dissolve and/or get stable suspensions soot carbon-rich allowing their analysis means absorption spectroscopy. This preliminarily commercially compounds pure polycyclic hydrocarbons, oils, polyacenaphthylene, naphthalene pitch, carbon soot, nanotubes, black. The were compared with those fuel oil asphaltenes combustion products condensed species collected in fuel-rich ethylene flame. Meaningful information about moieties these materials deduced from evidence on aromatization process involved mechanism inception growth obtained.