Effect of Reaction Temperature on the Morphology of Carbon Nanofibers

Abstract:

Carbon nanofibers with various morphologies were synthesized by the catalytic pyrolysis of acetylene using nickel catalyst nanoparticles at different reaction temperatures. Experimental results demonstrate that temperature is a critical parameter for controlling the size and morphology of carbon fibers. Twin coiled fibers and linearly bifurcating fibers emanating from nickel particles were formed at 400 °C; whereas, only linear carbon nanofibers were obtained at reaction temperatures of 450 °C, 500 °C, and 550 °C. At low temperatures, nickel nanoparticles remain in the middle of two fibers, while nickel particles are positioned at one end of the linear fibers at high temperatures.

• Periodical: Advanced Materials Research (Volumes 306-307)
• Pages: 1247-1251
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.306-307.1247
• Online since: August 2011
• Authors: Li Yan Yu, Li Na Sui, Hong Zhou Dong, Li Feng Dong
• Keywords: Carbon Nanofiber, Morpholoy, Nickel Catalyst, Pyrolysis, Reaction Temperature

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