The Effects of Catalyst Preparation Parameters on Carbon Nanotube Growth, Ph.D. Dissertation Sharif University of Technology ; Vessaghi, Mohammad Ali (Supervisor) ; Taghavinia, Nima (Co-Advisor) ; Shafiekhani, Azizollah (Co-Advisor)
Abstract
In this study three different methods; hot filament chemical vapor deposition (HFCVD), pulsed laser ablation (PLA) and electrochemical deposition were utilized to prepare catalyst thin films or nanoparticles and thermal chemical vapor deposition (TCVD) was used to grow multiwall carbon nanotubes (MWCNTs). We found that even though the three mentioned techniques have been rarely applied by researchers, they are appropriate and efficient methods to produce catalytic basis for CNT growth. In the TCVD step, liquid petroleum gas (LPG) was applied as carbon source. Although, this gas is a mixture of different hydrocarbons and further contains some sulfur, our results verify that utilizing of LPG...
Cataloging briefThe Effects of Catalyst Preparation Parameters on Carbon Nanotube Growth, Ph.D. Dissertation Sharif University of Technology ; Vessaghi, Mohammad Ali (Supervisor) ; Taghavinia, Nima (Co-Advisor) ; Shafiekhani, Azizollah (Co-Advisor)
Abstract
In this study three different methods; hot filament chemical vapor deposition (HFCVD), pulsed laser ablation (PLA) and electrochemical deposition were utilized to prepare catalyst thin films or nanoparticles and thermal chemical vapor deposition (TCVD) was used to grow multiwall carbon nanotubes (MWCNTs). We found that even though the three mentioned techniques have been rarely applied by researchers, they are appropriate and efficient methods to produce catalytic basis for CNT growth. In the TCVD step, liquid petroleum gas (LPG) was applied as carbon source. Although, this gas is a mixture of different hydrocarbons and further contains some sulfur, our results verify that utilizing of LPG...
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