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Optoelectronically automated system for carbon nanotubes synthesis via arc-discharge in solution

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7 Author(s)
Bera, Debasis ; Surface Engineering and Nanotechnology Facility (SNF), Advanced Materials Processing and Analysis Center (AMPAC), and Mechanical, Materials and Aerospace Engineering (MMAE), University of Central Florida (UCF), 4000 Central Florida Blvd., Eng 1, #381, Orlando, Florida 32816 ; Brinley, Erik ; Kuiry, Suresh C. ; McCutchen, Matthew
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The method of arc discharge in the solution is unique and inexpensive route for synthesis of the carbon nanotubes (CNTs), carbon onions, and other carbon nanostructures. Such a method can be used for in situ synthesis of CNTs decorated with nanoparticles. Herein, we report a simple and inexpensive optoelectronically automated system for arc discharge in solution synthesis of CNTs. The optoelectronic system maintains a constant gap between the two electrodes allowing a continuous synthesis of the carbon nanostructures. The system operates in a feedback loop consisting of an electrode-gap detector and an analog electronic unit, as controller. This computerized feeding system of the anode was used for in situ nanoparticles incorporated CNTs. For example, we have successfully decorated CNTs with ceria, silica, and palladium nanoparticles. Characterizations of nanostructures are performed using high-resolution transmission electron microscopy, scanning transmission electron microscopy, energy dispersive spectroscopy, and scanning electron microscopy.

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Review of Scientific Instruments  (Volume:76 ,  Issue: 3 )