Morphology Control of Vapor Grown Carbon Nanofibers

Abstract

Abstract: The influences of catalyst precursor, promoter and benzene to hydrogen mole ratio on the morphology of carbon filaments and selective preparation of carbon filaments by the floating catalyst method
were reported. By controlling the contents of ferrocene (catalyst precursor), thiophene (promoter) and benzene to hydrogen mole ratio, straight carbon nanotubes (S-CNTs), curving carbon nanotubes
(C-CNTs), beaded carbon nanofibers (B-CNF) and carbon nanofibers (CNF) were synthesized. Effects of different parameters, especially, critical role of catalyst, promoter and benzene to hydrogen mole
ratio were discussed. From TEM, Raman spectroscopy, HRTEM and TG-DSC analysis, it can be concluded that controllable growth of carbon filaments with different morphologies can be realized in the floating catalyst
system by simply controlling such parameters as catalyst, promoter and benzene to hydrogen mole ratio.

Key words: vapor grown carbon nano-fibers, carbon nanotubes, morphology control, floatingcatalyst method

CLC Number:

TB383

ZHU Chun-Ye,XIE Zi-Li,GUO Kun-Min. Morphology Control of Vapor Grown Carbon Nanofibers[J]. Journal of Inorganic Materials.

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