Results 131 to 140 of about 2,371 (171)
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Controlled synthesis of uniform cup-stacked carbon nanotubes for energy applications
Journal of Alloys and Compounds, 2021Abstract While carbon nanotubes (CNTs) have been widely used for various energy storage and conversion applications, controlled synthesis of CNTs with desired properties at low cost is still a challenge. Here we report our findings in the development of a controlled synthesis of uniform cup-stacked carbon nanotubes (CSCNTs) using a chemical vapor ...
Zhuojie Xiao, Yaxing Liu, Guizhe Zhao
exaly +2 more sources
The activation and hydrogen storage characteristics of the cup-stacked carbon nanotubes
Diamond and Related Materials, 2019Abstract In this study, the cup-stacked carbon nanotubes (CSCNTs) are chemically modified and used for the hydrogen storage for the first time. The SEM and TEM analyses indicate that because they are formed by the stacking of the truncated conical graphene layers the inner- and outer-edges of which are completely exposed, during KOH activation the ...
Huanpeng Liu, Chenyu Yang
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Processing and characterization of epoxy nanocomposites reinforced by cup-stacked carbon nanotubes
Polymer, 2005The effect of the dispersion, ozone treatment and concentration of cup-stacked carbon nanotubes on mechanical, electrical and thermal properties of the epoxy/CSCNT nanocomposites were investigated. Ozone treatment of carbon fibers was found to increase the surface oxygen concentration, thereby causing the contact angle between water, epoxy resin and ...
Yasuo Gotoh, Morinobu Endo
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Exposed Edge Planes of Cup-Stacked Carbon Nanotubes for an Electrochemical Capacitor
Journal of Physical Chemistry Letters, 2010The end sites of graphitic planes and their catalytic, chemical, physical, and electrochemical roles have been a longstanding issue in the surface chemistry of carbon science. In this study, complete exposure of the active edge sites on the outer surface of catalytically grown cup-stacked carbon nanotubes is accomplished using a conventional ...
In Young Jang +2 more
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Growth of a cup-stacked carbon nanotube carpet with a superhydrophobic surface
New Carbon Materials, 2013A carpet structure composed of high purity cup-stacked carbon nanotubes (CSCNTs) was synthesized by a catalytic chemical vapor deposition method. In a 15-min growth time, the CSCNT carpet with a height up to ∼300 μm and carbon purity above 99.9 wt.% was prepared.
Shisheng Li, Peng-Xiang Hou
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Effect of ball milling on morphology of cup-stacked carbon nanotubes
Chemical Physics Letters, 2002The effect of grinding on cup-stacked carbon nanotubes is studied. The application of a bending force on the sidewall of such carbon nanotubes, that is higher than the Van der Waals force acting between the cups, results in the shortening of carbon nanotubes and the formation of nano-barrels exhibiting an increased number of accessible active sites ...
Y A Kim, Morinobu Endo, G Dresselhaus
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Chemical Engineering Journal, 2013
Abstract For the first time, cup-stacked carbon nanotubes (CS-CNTs) with high quality were efficiently synthesized by a one-pot approach through the carbonization of polypropylene (PP) under the combined catalysis of organically-modified montmorillonite (OMMT)/NiO.
Jiang Gong, Zhiwei Jiang, Xin Wen
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Abstract For the first time, cup-stacked carbon nanotubes (CS-CNTs) with high quality were efficiently synthesized by a one-pot approach through the carbonization of polypropylene (PP) under the combined catalysis of organically-modified montmorillonite (OMMT)/NiO.
Jiang Gong, Zhiwei Jiang, Xin Wen
exaly +2 more sources
Journal of the American Chemical Society, 2006
The electron-transfer reduction of cup-stacked carbon nanotubes (CSCNTs) with sodium naphthalenide and the subsequent treatment with 1-iodododecane results in electrostatically destacking of CSCNTs to afford cup-shaped carbons with controlled diameter and size.
Masataka Ohtani +2 more
exaly +3 more sources
The electron-transfer reduction of cup-stacked carbon nanotubes (CSCNTs) with sodium naphthalenide and the subsequent treatment with 1-iodododecane results in electrostatically destacking of CSCNTs to afford cup-shaped carbons with controlled diameter and size.
Masataka Ohtani +2 more
exaly +3 more sources
Chemical Engineering Journal, 2014
Abstract A one-pot approach was demonstrated to effectively synthesize cup-stacked carbon nanotubes (CS-CNTs) through carbonization of polypropylene (PP) under the combined catalysis of halogenated compound and NiO at 700 °C. The effect of halogenated compound on the morphology, microstructure, phase structure and thermal stability of the resultant ...
Jiang Gong +2 more
exaly +2 more sources
Abstract A one-pot approach was demonstrated to effectively synthesize cup-stacked carbon nanotubes (CS-CNTs) through carbonization of polypropylene (PP) under the combined catalysis of halogenated compound and NiO at 700 °C. The effect of halogenated compound on the morphology, microstructure, phase structure and thermal stability of the resultant ...
Jiang Gong +2 more
exaly +2 more sources
Composites Part A: Applied Science and Manufacturing, 2007
This study investigated the damage accumulation behaviors in carbon fiber reinforced nanocomposite laminates under tensile loading. The nanocomposite laminates used in this study were manufactured from prepregs consisting of traditional carbon fibers and epoxy resin filled with cup-stacked carbon nanotubes (CSCNTs).
Tomohiro Yokozeki, Yutaka Iwahori
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This study investigated the damage accumulation behaviors in carbon fiber reinforced nanocomposite laminates under tensile loading. The nanocomposite laminates used in this study were manufactured from prepregs consisting of traditional carbon fibers and epoxy resin filled with cup-stacked carbon nanotubes (CSCNTs).
Tomohiro Yokozeki, Yutaka Iwahori
exaly +2 more sources