Paper Title:
Thermal CVD Growth of Carbon Nanotubes Thick Layers
  Abstract

Since their discovery, carbon nanotubes received a great deal of attention because of unique physical and chemical properties. However, in order to become of interest in the field of super resistant fibers for nanocomposite materials or in the production of textile material, very long carbon nanotubes are needed. Massive samples of well packed, vertically aligned and very long selfstanding multi wall carbon nanotubes (MWNT) were synthesized on uncoated silicon by a very efficient thermal CVD process, which involved the co-evaporation of camphor and ferrocene in a nitrogen atmosphere. We obtained structures with diameter between 20 and 80 nm with an average growth rate of about 400 nm/s, organized in thick carpets of entangled nanotubes. By the weight of the deposited carpet of MWNTs (density circa 0.8 g/cm3) the conversion of about 30% of the total hydrocarbon feedstock was calculated. Morphology and physical properties were characterized by electron microscopy techniques, Micro- Raman spectroscopy and thermogravimetric analysis. The analyses performed showed the absence of secondary carbonaceous products, whereas only 6% in weight of ferromagnetic iron clusters are present. BET analysis was used to calculate the porosity and the specific surface area density of the as grown samples, which resulted approximately 70 m2/g. Hydrophobicity of the CNT carpet was also investigated.

  Info
Periodical
Edited by
P. VINCENZINI and E. CAPPELLI
Pages
37-43
DOI
10.4028/www.scientific.net/AST.48.37
Citation
S. Porro, S. Musso, M. Giorcelli, A. Tagliaferro, "Thermal CVD Growth of Carbon Nanotubes Thick Layers", Advances in Science and Technology, Vol. 48, pp. 37-43, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Ping Zou
Abstract:Site-selective growth of multi-walled carbon nanotubes (MWCNTs) from an iron oxide nanoparticle catalyst patterned by drying-mediated...
742
Authors: M. Mansoor, S. Siddique, M.M. Asim
Abstract:Catalytic synthesis of carbon multiwall nanotubes (MWCNT) was carried out by chemical vapor deposition. Synthesis temperature was 750oC,...
116
Authors: Abu Bakar Suriani, Salina Muhamad, Puteri Sarah Mohamad Saad, Roslan Md Nor, Yosri Mohd Siran, Syahril Anuar M. Rejab, Ahmad Jaril Asis, Shawaluddin Tahiruddin, Saifollah Abdullah, Mohamad Mahmood Rusop
Abstract:The effects of synthesis temperature on the quality and quantity of vertically aligned carbon nanotubes (VACNT) were studied using high...
900
Authors: Jing Liu, Rong Wu, Jin Li, Yan Fei Sun, Ji Kang Jian
Chapter 2: Micro/Nano Materials and Technology
Abstract:In this paper, we report the synthesis of cubic silicon carbide (3C-SiC) nanoparticles by direction reaction of silicon powders and carbon...
183
Authors: Mohammad Maryam, A.B. Suriani, Muhammad Salleh Shamsudin, Mohamad Rusop
Abstract:Carbon nanotubes have many applications and therefore widely produced. However, it is limited due to the high production cost. In this paper,...
289