Shigeo Maruyama

Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan The formation mechanism of single-walled carbon nanotubes (SWNTs) is studied with cluster beam experiments and molecular dynamics simulations. A FT-ICR mass spectrometer directly connected to the laser-vaporization cluster beam source was employed to study the metal-carbon binary clusters generated by the laser-vaporization of Ni Co loaded carbon materials used for the laser-furnace...

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Figure 2 Positive and negative mass spectra of clusters generated by the laser vaporization of Ni Co loaded (0.6 at each) graphite disk. distribution is similar to the distribution obtained from a pure graphite sample 1, 39 , Here, even numbered clusters of pure carbon atoms with dominant signals for C60 and C70 were observed, but no trace of Ni or Co was detected. However, careful comparison to the pure graphite case showed the considerable enhancement of C and C70. We first thought that Ni or...

Nm

Figure 3 The coalescence of a single nanotube with a rope composed of two nanotubes at the 3 angle of incidence, (a) The rope growth in accordance with the rigid growth mode with small amount of structural deformation, while the single nanotube is slightly curved revealing the attractive force causing the coalescence. (b) The central nanotube, 19 nm in diameter, is the most deformed by a simultaneous milling process of wider adjacent tubes. the contact area (Figure 3). The central nanotube, 19...

Sashiro Uemura

Ise Electronics Corp., Tsumura, Ise, Mie, Japan An excellent performance of carbon nanotubes as field-emitters was demonstrated using a high-voltage FED (field emission display) elements at SID (Society for Information Display) in 1998, where a light-source tube for an outdoor large-size display and diodetype flat panel were presented with a screen-printed nanotube cathode 1 . The diode FED-panel image was presented by Samsung at SID in 1999 2 . After that, a triode structure that describes an...

Vt

The novel structure and potential novel mechanism of this HIV drug prompted further studies of fullerene biology around the world 5 and led, in 1999, to the formation of the first fullerene drug company, C Sixty, Inc. 3. Status report on the Fullerene Drug Pipeline - C Sixty, Inc. The Toronto, Canada-based fullerene biotechnology company C Sixty, Inc. (www.csixty.com) has acquired an extensive portfolio of proprietary fullerene-based medical products. Founding SAB members include Dr Richard...

Selfassembly of Inorganic Nanotubes Synthesised by the Chemical Transport Reaction

Maja Remskara,b , Ales Mrzelat and Francis Levybt aJ. Stefan Institute, Solid-State Physics Department, Jamova 39, SI-1000 Ljubljana, Slovenia blnstitute of Applied Physics, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, The chemical transport reaction, known as a standard method for growth of transition metal dichalcogenides, was found to be a successful technique for the synthesis of MoS2 and WS2 inorganic nanotubes. While microtubes usually grow as single tubes, the nanotubes...

Masako Yudasaka

Nanotubulites, International Cooperative Research Project, Japan Science Technology Corporation, C o NEC 34 Miyukigaoka, Tsukuba, Ibaraki 305-8504, Japan Metal catalysts take forms of nanometer-sized particles in the condensed carbon phase and catalyze the growth of single-wall carbon nanotubes at about 1200 C. The good metal catalysts in forming single-wall carbon nanotubes must satisfy at least three conditions 1 be a good graphitization catalyst, 2 have low solubility in graphite, and 3 have...

Uri Sagman

C Sixty Inc. is a private biophaimaceutical company focusing on the discovery and the development of a new class of therapeutics based on the fullerene molecule, a hollow sphere made up of 60 carbon atoms which was discovered in 1985 as the third and unprecedented new form of elemental carbon in nature. It was dubbed buckminsterfullerene or fullerene because of its geodesic character and its discoverers were awarded the 1996 Nobel Prize in chemistry. C Sixty's lead products are based on...

Mechanical Properties of Polymerized Amorphous and Nanocrystalline Carbon Phases Prepared from Fullerite C under

Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow region, 142190, Russia Mechanical properties of various carbon phases prepared by the fullerite CM heating in the 3.5 to 13.5 GPa pressure interval with the subsequent quenching have been reviewed, discussing, in particular, the general trends of interrelation between the structure, density, and mechanical properties of carbon materials. Hie considered pressure interval may be conditionally divided into the...

Raouf O Loutfy A Moravsky A Franco and E Veksler

MER Corporation, Tucson, Arizona 85706, USA The recent developments of carbonaceous material synthesis have resulted in several new forms of carbon such as carbon nanotubes and carbon nanofibers, and super-high surface area activated carbons nano-materials. There are speculations that these materials may have extraordinarily high hydrogen storage capacities. In this work, we examined the hydrogen gas adsorption capacities of these carbonaceous materials at room temperature, as well as at liquid...

Fullerene Materials for Lithiumion Battery Applications

AMER Corporation, Tucson, Arizona 85706, USA Fullerene International Corporation, New York, NY 10022, USA Novel and high-performance anode materials based on modified fullerene materials, for lithium-ion rechargeable batteries were developed. The technical feasibility of lithium-ion intercalation and de-intercalation based on the degree of anion or atomic modification of the fullerene was examined. In this approach the fullerene molecule is viewed as a large anchor molecule to which various...

Role of Fullerenelike Structures in the Reactivity of Shungite Carbon as Used in New Materials with Advanced Properties

Institute of Geology Karelian Research Center RAS, Pushkinskaya 11, Petrozavodsk 185610, The work highlights a source of unusual high reactivity of shungite carbon ShC as a catalyst in modeling coal-treatment reactions, a filler for polymeric matrices, an adsorbent and filter for a water-purification process, and a reagent in melting of siliceous iron and in the production of silica carbide. The structural pattern of ShC was shown to be connected with fullerene-like structures which could be...

Raouf O Loutfy Eugene M Wexler and Weijiong Li

Materials amp Electrochemical Research MER Corporation, Tucson, AZ 85706, USA Unique highly microporous carbons have been synthesized from fullerenes using common porous carbon preparation procedures such as preoxidation, carbonization, and activation. The fullerene-based carbonaceous materials in different stages of preparation were characterized using various techniques such as low-pressure and high-pressure gas adsorption, elemental analysis, X-ray diffraction, and mercury porosimetry for...

New Source and Preparation of Fullerenes

Role of Fullerene-like Structures in the Reactivity of Shungite Carbon as Used in New Materials with Advanced Properties 237 Formation of Nanostructured Carbons under Yury Gogotsi, Joseph A. Libera and Masahiro Yoshimura Advanced Thermal Protection Coating Using Fullerenes 267 Raouf O. Loutfy and Eugene M. Wexler Ablative and Flame-Retardant Properties of Fullerenes 275 Raouf O. Loutfy and Eugene M. Wexler Gas-Phase Hydrogenation of Fullernes 281 Raouf O. Loutfy and Eugene M. Wexler...