International Journal of Advanced Materials Research
Articles Information
International Journal of Advanced Materials Research, Vol.2, No.5, Sep. 2016, Pub. Date: Aug. 16, 2016
Synthesis and Production of Carbon Nanospheres Using Noncatalytic CVD Method
Pages: 86-91 Views: 991 Downloads: 488
Authors
[01] Abdulqader D. Faisal, Applied Science Department, Applied Science Research Unit, University of Technology, Baghdad, Iraq.
[02] Ali A. Aljubouri, Applied Science Department, Applied Science Research Unit, University of Technology, Baghdad, Iraq.
Abstract
Carbon nanospheres were successfully synthesized via noncatalytic chemical vapor deposition method. The product was synthesized from C2H2 as a precursor and N2 as a carrier gas at 650ºC for 1h using quartz tube inserted into a tube furnace. Two approaches of carbon nanospheres (CNSs) growth were demonstrated. The product revealed fluffy, spongy, black, and light weight carbon spheres (CSs) with regular shapes of 100-200 nm in diameter were investigated. Carbon spheres (CSs) were also grown on silicon (100). The carbon products were characterized by X-Ray diffraction (XRD), Raman spectroscopy, Scanning electron microscope (SEM), Transmission electron microscope (TEM) and Fourier transform infrared (FT-IR) spectroscopy. The XRD results are confirmed by Raman analysis which reflects the presence of amorphous carbon within the structure. The very small crystallite size was calculated using Scherer’s formula compared with previous results which reflect the small number of atoms per lamellae and large interlayer spacing. The CNS's energy gap was calculated for a thin film of carbon powder and the value was 3.65eV.
Keywords
Carbon Nanosphere, Non-catalytic CVD, Beads and Necklace –like Carbon Structures, Raman Spectroscopy, CNS's Energy Gap
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