Author/Authors :
Li، نويسنده , , Yu and Zhang، نويسنده , , Xiaobin and Shen، نويسنده , , Lihua and Luo، نويسنده , , Junhang and Tao، نويسنده , , Xinyong and Liu، نويسنده , , Fu and Xu، نويسنده , , Guoliang and Wang، نويسنده , , Youwen and Geise، نويسنده , , H.J. and Tendeloo، نويسنده , , G. Van، نويسنده ,
Abstract :
High-quality single-walled carbon nanotubes (SWNTs) are synthesized in gram amount on Fe–Mo/MgO catalysts by catalytic decomposition of CH4 in H2 or N2. Raman data reveal that the as-prepared SWNTs have a diameter of about 0.74–1.29 nm. It is found that the diameter of the as-prepared SWNTs can be controlled mainly by adjusting the molar ratio of Fe–Mo versus the MgO support. Several other factors that potentially influence the growth of SWNTs have been studied in detail. The experimental results show that the nature of the catalyst determines the diameter of the as-prepared SWNTs.
