High-yield bamboo-shaped carbon nanotubes from cresol for electrochemical application

2008 ◽  
pp. 2046 ◽  
Author(s):  
Ruitao Lv ◽  
Lin Zou ◽  
Xuchun Gui ◽  
Feiyu Kang ◽  
Yanqiu Zhu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Yield ◽  
Electrochemical Application

High-yield synthesis of single-walled carbon nanotubes with a pulsed arc-discharge technique

2007 ◽  
Vol 244 (11) ◽  
pp. 3907-3910 ◽  
Author(s):  
Aljoscha Roch ◽  
Oliver Jost ◽  
Bernd Schultrich ◽  
Eckhard Beyer
Keyword(s):  
Carbon Nanotubes ◽  
Arc Discharge ◽  
Single Walled Carbon Nanotubes ◽  
High Yield ◽  
Single Walled Carbon ◽  
Pulsed Arc Discharge ◽  
Walled Carbon Nanotubes ◽  
Pulsed Arc

Improved hydrothermal synthesis of MoS2 sheathed carbon nanotubes

2012 ◽  
Vol 66 (12) ◽  
Author(s):  
Jaciel Robles-Nuñez ◽  
Fernando Chiñas-Castillo ◽  
Manuel Sanchez-Rubio ◽  
Javier Lara-Romero ◽  
Rafael Huirache-Acuña ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Hydrothermal Synthesis ◽  
Reaction Temperature ◽  
High Yield ◽  
Hydrothermal Route ◽  
Simple Process ◽  
Toxic Materials ◽  
Resultant Material ◽  
Full Body

AbstractMoS2 sheathed carbon nanotubes have been successfully synthesized using a hydrothermal route under controlled conditions. The resultant material was studied by XRD, EDS, HRTEM, and Raman spectroscopy. Advantages of the preparation presented here compared to other methods are: a) lower reaction temperature, b) high yield of sheathed nanotubes including ends and full body, c) simple process with non-toxic materials, and d) no damage inflicted to nanotubes.

Unravelling the Mechanisms Behind Mixed Catalysts for the High Yield Production of Single-Walled Carbon Nanotubes

ACS Nano ◽  
2009 ◽  
Vol 3 (12) ◽  
pp. 3839-3844 ◽  
Author(s):  
Sailaja Tetali ◽  
Mujtaba Zaka ◽  
Ronny Schönfelder ◽  
Alicja Bachmatiuk ◽  
Felix Börrnert ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
High Yield ◽  
Single Walled Carbon ◽  
Yield Production ◽  
Walled Carbon Nanotubes ◽  
High Yield Production

Influence Analysis of Sampling Time for Synthesis of Carbon Nanotubes in the V-Type Pyrolysis Flame

2011 ◽  
Vol 221 ◽  
pp. 235-239 ◽  
Author(s):  
Yuan Chao Liu ◽  
Bao Min Sun ◽  
Zhao Yong Ding
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Experimental System ◽  
Growth Period ◽  
Sampling Time ◽  
High Yield ◽  
Spray Pyrolysis Method ◽  
Transmission Electron ◽  
Novel Method ◽  
Synthesis Of Carbon Nanotubes

Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of novel method. It needs simple laboratory equipments and normal atmosphere pressure. The V-type pyrolysis flame experimental system is introduced. Carbon source is the carbon monoxide and heat source is from acetylene/air premixed flame. Pentacarbonyl iron, served as catalyst, is transported by spray- pyrolysis method into the flame. The carbon nanotubes were characterized by scanning electron microscope and transmission electron microscope. This study aims to find the formation rule of carbon nanotubes from the V-type pyrolysis flame in different sampling times. The carbon nanotubes with less impurity and high yield were captured successfully in the V-type pyrolysis flame. The diameter of carbon nanotubes was approximate between 10nm and 20nm, and its length was dozens of microns. When the sampling time was below 3 minutes, the growth of carbon nanotubes came into the preparation growth period. The length of the carbon nanotubes increased gradually and the diameter had no obvious change with the extension of sampling time. When the sampling time was continued to the 5th minute, the growth of carbon nanotubes came into the exuberant growth period. The carbon nanotubes growth was finished within 5minutes. Longer sampling time was meaningless after the carbon nanotubes formation.

Mass production of multi-wall carbon nanotubes by metal dusting process with high yield

2011 ◽  
Vol 46 (5) ◽  
pp. 716-721 ◽  
Author(s):  
H. Ghorbani ◽  
A.M. Rashidi ◽  
S. Rastegari ◽  
S. Mirdamadi ◽  
M. Alaei
Keyword(s):  
Carbon Nanotubes ◽  
Mass Production ◽  
High Yield ◽  
Metal Dusting ◽  
Multi Wall Carbon Nanotubes

Preferential Growth of Carbon Nanotubes/Nanofibers Using Lithographically Patterned Catalysts

2001 ◽  
Vol 675 ◽  
Author(s):  
K. B. K. Teo ◽  
M. Chhowalla ◽  
G. A. J. Amaratunga ◽  
W. I. Milne ◽  
G. Pirio ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Amorphous Carbon ◽  
Deposition Process ◽  
High Yield ◽  
Full Potential ◽  
Carbon Nanofibres ◽  
Preferential Growth ◽  
Plasma Decomposition

ABSTRACTIn order to utilise the full potential of carbon nanotubes/nanofibers, it is necessary to be able to synthesize well aligned nanotubes/nanofibres at desired locations on a substrate. This paper examines the preferential growth of aligned carbon nanofibres by PECVD using lithographically patterned catalysts. In the PECVD deposition process, amorphous carbon is deposited together with the nanotubes due to the plasma decomposition of the carbon feed gas, in this case, acetylene. The challenge is to uniformly nucleate nanotubes and reduce the unwanted amorphous carbon on both the patterned and unpatterned areas. An etching gas (ammonia) is thus also incorporated into the PECVD process and by appropriately balancing the acetylene to ammonia ratio, conditions are obtained where no unwanted amorphous carbon is deposited. In this paper, we demonstrate high yield, uniform, ‘clean’ and preferential growth of vertically aligned nanotubes using PECVD.

scholarly journals Evaluation of new processes to achieve a high yield of carbon nanotubes by CVD method

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Farshad Taleshi
Keyword(s):  
Carbon Nanotubes ◽  
High Yield ◽  
Cvd Method

scholarly journals Observation and Characterization of Fragile Organometallic Molecules Encapsulated in Single-Wall Carbon Nanotubes

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Daisuke Ogawa ◽  
Ryo Kitaura ◽  
Takeshi Saito ◽  
Shinobu Aoyagi ◽  
Eiji Nishibori ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Yield ◽  
Single Wall Carbon Nanotubes ◽  
X Ray Diffraction ◽  
Single Wall Carbon ◽  
X Ray ◽  
Transmission Electron ◽  
Organometallic Molecules ◽  
X Ray Absorption

Thermally fragile tris(η5-cyclopentadienyl)erbium (ErCp3) molecules are encapsulated in single-wall carbon nanotubes (SWCNTs) with high yield. We realized the encapsulation of ErCp3with high filling ratio by using high quality SWCNTs at an optimized temperature under higher vacuum. Structure determination based on high-resolution transmission electron microscope observations together with the image simulations reveals the presence of almost free rotation of each ErCp3molecule in SWCNTs. The encapsulation is also confirmed by X-ray diffraction. Trivalent character of Er ions (i.e., Er3+) is confirmed by X-ray absorption spectrum.

High-yield fullerene encapsulation in single-wall carbon nanotubes

2001 ◽  
Vol 121 (1-3) ◽  
pp. 1195-1196 ◽  
Author(s):  
H. Kataura ◽  
Y. Maniwa ◽  
T. Kodama ◽  
K. Kikuchi ◽  
K. Hirahara ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Yield ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon
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