College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;2.College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, China;
produced using arc discharge between pure graphite electrodes in water were investigated by HRTEM. Results indicate that OLFs with various cores can be synthesized, which have a high degree of graphitization with diameters ranging from 5 to 40nm. The yield and productivity of OLFs rise with increasing current density.