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Effect of Catalysts on Production of Carbon Nanostructures

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Effect of Catalysts on Production of Carbon Nanostructures

Ahu Gümrah Dumanli, and Yuda Yurum

Faculty of Engineering and Natural Sciences, Sabanci University, Orhanli, Tuzla, Istanbul 34956, Turkey, Fax: 90-216-4839550,

dumanli@su.sabanciuniv.edu yyurum@sabanciuniv.edu

Carbon nanofibers and nanotubes were produced by using a chemical vapor deposition (CVD)

process in which a hydrocarbon source was used over a metal based catalyst and the reaction

conditions such as temperature and flow rate of the hydrocarbon source and inert gas were

optimized. It is possible to find a lot of work in the literature which used approximately this

system to produce nanofiber and nanotubes then characterized the products. Knowing that the

key point was the catalyst in CVD process, our aim was to investigate the role of the catalyst

in detail and relate the properties of the catalyst to the properties of the final product. For this

reason, we had produced a series of transition metal catalysts by different methods and tested

their success during the catalytic growth of carbon nanofiber and nanotubes and related the

results with the properties of the catalysts such as the surface properties, stability and

electronic properties.

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