Textural Investigation Of Carbon Nanotube Using Nitrogen Adsorption Analysis

Mohammad Nadzrul Izamuddin, Najmuddin (2011) Textural Investigation Of Carbon Nanotube Using Nitrogen Adsorption Analysis. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Carbon Nanotubes (CNT’s) are carbon that come in a different molecular structures (allotropes). They are cylindrical in shape and their structural size are so small, they are considered to be nano particles. Prior to their discoveries in 1991, diamond is considered to be the element with the toughest and has the highest thermal conductivity in the world. But, CNT’s managed to top diamond in terms of strength, thermal and electrical conductivity. In this research, we are focusing on the analysis and evaluation of CNT’s textural properties using Nitrogen adsorption analysis. A test was carried out at University of Malaya’s lab facility using Nitrogen (N2) as the adsorption gas in Brunauer, Emmett and Teller (BET) testing machine. BET method was used because it can give the total surface area of a specimen including within the particles. Three specimens of CNT’s were tested which are MER, Nanoamor and Pyrograf. The investigation went through several details such as pore types and pore diameter of CNT’s to ensure that the objective is achieved. The testing data shows that Pyrograf tops the other two specimens in terms of surface area, total pore volume and micropore volume. Pyrograf has the BET surface area of 1.718E+03 m2/g, total pore volume of 1.078 cc/g and micropore volume of 6.845E-01 cc/g. It is clear that the textural properties play an important role in surface area measurement, which later becomes the medium of interactions between CNT’s and their surroundings. The findings of this research will improve CNT’s applicability in Nanotechnology as well as gaining the interest from other scientific body to further the studies in carbon nanotube’s textural investigations

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