A Study on the Morphology of Carbon Nanomaterials prepared by Thermal CVD on the Mechanochemical Treated Catalysts

  • Ryu, Ho-Jin (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Yi, Hyung-Kyun (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Saito, Fumio (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University) ;
  • Lee, Byuung-Il (UNISEM Co., Ltd) ;
  • Chang, Ho-Jung (Dept. Electronics Engineering, Dankook University)
  • 발행 : 2002.11.01

초록

CNTs have been grown by the thermal CVD process in which $C_{2}H_{2}$ gas was deposited on the Fe - $Al(OH)_3$ mixture pretreated by mechanochemical treatment with a high energy mixer mill. As the duration time of grinding fer $Fe-(Al(OH)_3$ mixture by the mixer mill increased, amorphous $Al(OH)_3$ and more smaller Fe particles agglomerated into spheres. With unground and ground mixtures of $Fe-Al(OH)_3$, CNTs were grown at $700^{\circ}C$. As a result, CNTs grown on ground mixtures have more uniform diameter and morphology than those of unground mixture. The characterization of $Fe-Al(OH)_3$ mixture and as-grown CNTs were done by XRD, SEM and TEM.

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