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Synthesis of Carbon Nanotube

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (28 February 2010) | Viewed by 69713

Special Issue Editor

1. Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, C/2-5 Building 209, H-3515 Miskolc-Egyetemvaros, Hungary
2. Department of Applied and Environmental Chemistry, University of Szeged, Szeged, Hungary
Interests: heterogeneous catalysis; photocatalytic materials; carbon nanotubes; nanocomposite materials; immobilization of biologically active units
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Due to their unique physical and electronic properties carbon nanotubes (CNTs) have induced great interests among researchers since their discovery. Several techniques such as catalytic vapor deposition (CVD), HiPCO, arc discharge, laser ablation, etc. are now available as possible synthesis methods for carbon nanotube production. However, increasing gap between world demand and production capacity is imperative in achieving industrial scale production of carbon nanotubes of good quality and purity. With further optimization of growth conditions, the synthesis of carbon nanotubes can be successfully controlled. Overcoming these difficulties might certainly help their commercial use in nanoscience and nanotechnology.

Prof. Dr. Klara Hernadi
Guest Editor

Keywords

  • carbon nanotube
  • CVD method
  • arc discharge
  • laser ablation
  • HiPCO
  • electron microscopy
  • raman spectroscopy
  • MWNT
  • SWNT

Published Papers (5 papers)

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Research

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449 KiB  
Article
Helicity Distributions of Single-Walled Carbon Nanotubes and Its Implication on the Growth Mechanism
by Sithara S. Wijeratne, Nolan C. Harris and Ching-Hwa Kiang
Materials 2010, 3(4), 2725-2734; https://doi.org/10.3390/ma3042725 - 14 Apr 2010
Cited by 7 | Viewed by 8354
Abstract
Single-walled nanotubes (SWNT) have attracted significant attention because of the substance’s superior crystal quality, high thermal conductivity and current carrying capacity, thus emerging as an attractive material for nanoelectrics. To optimize the selection of SWNT structures in large-scale synthesis, an understanding of their [...] Read more.
Single-walled nanotubes (SWNT) have attracted significant attention because of the substance’s superior crystal quality, high thermal conductivity and current carrying capacity, thus emerging as an attractive material for nanoelectrics. To optimize the selection of SWNT structures in large-scale synthesis, an understanding of their growth mechanism is necessary. We report studies of the helicity distributions of SWNT using electron nanodiffraction. The overall statistical distribution of helicity has peaks at 0° and 30°. The peak evident at 0° was found to be a sharp local maximum, while the peak at 30° was broader. We also found that the helicity distribution varies from region to region of micrometer size. This observation indicates that local environment affects nanotube growth, resulting in different structural distributions. Full article
(This article belongs to the Special Issue Synthesis of Carbon Nanotube)
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Review

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3455 KiB  
Review
Carbon Nanotubes Filled with Ferromagnetic Materials
by Uhland Weissker, Silke Hampel, Albrecht Leonhardt and Bernd Büchner
Materials 2010, 3(8), 4387-4427; https://doi.org/10.3390/ma3084387 - 13 Aug 2010
Cited by 121 | Viewed by 14598
Abstract
Carbon nanotubes (CNT) filled with ferromagnetic metals like iron, cobalt or nickel are new and very interesting nanostructured materials with a number of unique properties. In this paper we give an overview about different chemical vapor deposition (CVD) methods for their synthesis and [...] Read more.
Carbon nanotubes (CNT) filled with ferromagnetic metals like iron, cobalt or nickel are new and very interesting nanostructured materials with a number of unique properties. In this paper we give an overview about different chemical vapor deposition (CVD) methods for their synthesis and discuss the influence of selected growth parameters. In addition we evaluate possible growth mechanisms involved in their formation. Moreover we show their identified structural and magnetic properties. On the basis of these properties we present different application possibilities. Some selected examples reveal the high potential of these materials in the field of medicine and nanotechnology. Full article
(This article belongs to the Special Issue Synthesis of Carbon Nanotube)
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1331 KiB  
Review
Large-Scale Synthesis of Carbon Nanomaterials by Catalytic Chemical Vapor Deposition: A Review of the Effects of Synthesis Parameters and Magnetic Properties
by Xiaosi Qi, Chuan Qin, Wei Zhong, Chaktong Au, Xiaojuan Ye and Youwei Du
Materials 2010, 3(8), 4142-4174; https://doi.org/10.3390/ma3084142 - 30 Jul 2010
Cited by 52 | Viewed by 11944
Abstract
The large-scale production of carbon nanomaterials by catalytic chemical vapor deposition is reviewed in context with their microwave absorbing ability. Factors that influence the growth as well as the magnetic properties of the carbon nanomaterials are discussed. Full article
(This article belongs to the Special Issue Synthesis of Carbon Nanotube)
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2465 KiB  
Review
Synthesis Methods of Carbon Nanotubes and Related Materials
by Andrea Szabó, Caterina Perri, Anita Csató, Girolamo Giordano, Danilo Vuono and János B. Nagy
Materials 2010, 3(5), 3092-3140; https://doi.org/10.3390/ma3053092 - 07 May 2010
Cited by 219 | Viewed by 21660
Abstract
The challenge on carbon nanotubes is still the subject of many research groups. While in the first years the focus was on the new synthesis methods, new carbon sources and support materials, recently, the application possibilities are the principal arguments of the studies. [...] Read more.
The challenge on carbon nanotubes is still the subject of many research groups. While in the first years the focus was on the new synthesis methods, new carbon sources and support materials, recently, the application possibilities are the principal arguments of the studies. The three main synthesis methods discussed in this review are the arc discharge, the laser ablation and the chemical vapour deposition (CVD) with a special regard to the latter one. In the early stage of the nanotube production the first two methods were utilized mainly for the production of SWNTs while the third one produced mainly MWNTs. The principle of CVD is the decomposition of various hydrocarbons over transition metal supported catalyst. Single-walled (SWNT), multi-walled (MWNT) and coiled carbon nanotubes are produced. In some case, interesting carbonaceous materials are formed during the synthesis process, such as bamboo-like tubes, onions, horn-like structures. In this paper, we refer to the progresses made in the field of the synthesis techniques of carbon nanotubes in the last decade. Full article
(This article belongs to the Special Issue Synthesis of Carbon Nanotube)
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1514 KiB  
Review
A Review of the Properties and CVD Synthesis of Coiled Carbon Nanotubes
by Dóra Fejes and Klára Hernádi
Materials 2010, 3(4), 2618-2642; https://doi.org/10.3390/ma3042618 - 12 Apr 2010
Cited by 63 | Viewed by 12295
Abstract
The CVD route for carbon nanotube production has become a popular method to make large amounts of multiwall carbon nanotubes. The structure, morphology and size of carbon materials depend critically on the catalyst preparation and deposition conditions. According to current knowledge, CVD method [...] Read more.
The CVD route for carbon nanotube production has become a popular method to make large amounts of multiwall carbon nanotubes. The structure, morphology and size of carbon materials depend critically on the catalyst preparation and deposition conditions. According to current knowledge, CVD method is the only process which can produce carbon nanocoils. These nanocoils are perfect candidates for nanotechnology applications. One might indeed hope that these coils would have the extraordinary stiffness displayed by straight nanotubes. Based on theoretical studies, regular coiled nanotubes exhibit exceptional mechanical, electrical, and magnetic properties due to the combination of their peculiar helical morphology and the fascinating properties of nanotubes. In spite of its technological interest, relatively low attention has been paid to this special field. In this paper we attempt to summarize results obtained until now. Full article
(This article belongs to the Special Issue Synthesis of Carbon Nanotube)
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