(193h) Carbon Nanofiber Formation from Supercritical Carbon Dioxide Extraction Tar/PAN Via Electrospinning

Carbon nanofibers (CNFs) were successfully made from supercritical carbon dioxide extraction tar blended with different amount of PAN (50, 40, 30 wt%) by electrospinning, stabilization and carbonization. The supercritical carbon dioxide extraction employed Wyoming Powder River Basin coal as raw material and ethanol as the green co-solvent. Yield of the tar could reach as high as 35.85%. The physical and chemical properties of the nanofibers were characterized by SEM, TGA, FTIR and BET, respectively. The CNFs showed the feature of high surface area from 492 m²/g to 619 m²/g.