BET Analysis on Carbon Nanotubes: Comparison between Single and Double Stage Thermal CVD Method

Abstract:

Carbon nanotubes have many applications and therefore widely produced. However, it is limited due to the high production cost. In this paper, by preparing the CNTs using the Thermal Chemical Vapor Deposition method, CNTs were synthesized with a low cost method since palm oil is used as the precursor which is a biodegradable and cheap source. The aerosol or spray pyrolysis method is used for single stage and double stage TCVD method. Then, the samples were both collected at deposition temperature of 750°C and were characterized using Brunauer, Emmett and Teller (BET) method. Since CNTs are said to have high surface area therefore BET method is used to prove this fact. Results showed that by using double stage TCVD method, more CNTs were synthesized compared to single stage TCVD method which produced more impurities namely amorphous carbon. CNTs also have higher surface area compared to amorphous carbon. To support this result, the images of the CNTs produced by same method but different parameters were characterized with field emission scanning electron microscope (FE-SEM) and the raman spectra was determined by the raman spectroscopy characterization.

• Periodical: Advanced Materials Research (Volume 626)
• Pages: 289-293
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.626.289
• Online since: December 2012
• Authors: Mohammad Maryam, Suriani Abu Bakar, Muhammad Salleh Shamsudin, Mohamad Rusop
• Keywords: BET, Carbon Nanotube (CN), Surface Area of CNT, Thermal CVD

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