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Abstract
High-quality vertically aligned carbon nanotubes (VACNTs) were synthesised using ferrocene-chicken oil mixture utilising a thermal chemical vapour deposition (TCVD) method. Reaction parameters incl...
Highlights
Thermal chemical vapour deposition (TCVD) method is the most commonly used method for synthesis of carbon nanotubes (CNTs)
Effect of vaporisation temperature In order to study the effect of vaporisation temperature on the growth of vertically aligned CNTs (VACNTs), the synthesis temperature was kept constant at 800°C and the synthesis time was set to 60 min
When the vaporisation temperature increased to 420°C (Figure 1(b)), it can be seen that the substrate was covered with small amount of CNTs and the carbon nanospheres with the diameters of 19.8–37.7 and 115.0 nm, respectively
Summary
Thermal chemical vapour deposition (TCVD) method is the most commonly used method for synthesis of carbon nanotubes (CNTs) This method represents simplest preparation set-up where the CNTs can be grown under mild synthesis condition (ambient pressure and low growth temperature), simple facility and low cost as the use of high-quality substrate and chemicals are not required (Zhang, Huang, Qian, Zhang, & Wei, 2006). This method is considered to be an economic and practical process for large scale production of high purity CNTs (Prasek et al, 2011). The overcrowding of the CNTs in the array forces the nanotubes to continuously grow in vertical direction until being terminated (Deck & Vecchio, 1995), producing vertically aligned CNTs (VACNTs)
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