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SYNTHESIS OF CARBON NANOTUBES, NANO FIBBERS AND NANO UNION BY ELECTRIC ARC DISCHARGE METHOD USING NACL ACCUSE AS SOLUTION AND FE AND NI PARTICLES AND CATALYSTS

Carbon nanotubes (CNTs), carbon nanofibers and carbon nano onions were synthesized by simple arc discharge between two graphite electrodes immersed in NaCl distilled water solution. Synthesis of CNTs was investigated in NaCl solution with different experimental parameters, such as voltage, current, catalyst concentration and NaCl solution molarities, using Fe and Ni catalysts. Then, Carbon nanofibers were synthesized by using a mixture of Fe and Ni (1.8:0.9 mols %) as a catalyst. The experiments were optimized with using 0.3 molar of NaCl solution and 3 mol% catalyst concentrations. Raw as-produced materials were partially purified by acid treatment and thermal oxidation methods. The carbon nanostructures were characterized by scanning and transmission electron microscope (SEM and TEM).