Gas Dwell Time Control for Rapid and Long Lifetime Growth of Single-Walled Carbon Nanotube Forests

Nano Letters ◽  
2011 ◽  
Vol 11 (9) ◽  
pp. 3617-3623 ◽  
Author(s):  
Satoshi Yasuda ◽  
Don N. Futaba ◽  
Takeo Yamada ◽  
Motoo Yumura ◽  
Kenji Hata
Keyword(s):  
Carbon Nanotube ◽  
Dwell Time ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Time Control ◽  
Long Lifetime ◽  
Carbon Nanotube Forests

A sweet spot for highly efficient growth of vertically aligned single-walled carbon nanotube forests enabling their unique structures and properties

Nanoscale ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 162-171 ◽  
Author(s):  
Guohai Chen ◽  
Robert C. Davis ◽  
Don N. Futaba ◽  
Shunsuke Sakurai ◽  
Kazufumi Kobashi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Sweet Spot ◽  
Efficient Synthesis ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Highly Efficient ◽  
Structures And Properties ◽  
Vertically Aligned ◽  
Carbon Nanotube Forests

We report the existence of a SWCNT “sweet spot” in the CNT diameter and spacing domain for highly efficient synthesis, within which SWCNTs possessed a unique set of characteristics.

scholarly journals Growth of high quality, high density single-walled carbon nanotube forests on copper foils

Carbon ◽  
2016 ◽  
Vol 98 ◽  
pp. 624-632 ◽  
Author(s):  
Guofang Zhong ◽  
Junwei Yang ◽  
Hisashi Sugime ◽  
Rahul Rao ◽  
Jianwei Zhao ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Density ◽  
High Quality ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Copper Foils ◽  
Carbon Nanotube Forests

Outer-specific surface area as a gauge for absolute purity of single-walled carbon nanotube forests

Carbon ◽  
2010 ◽  
Vol 48 (15) ◽  
pp. 4542-4546 ◽  
Author(s):  
Don N. Futaba ◽  
Jundai Goto ◽  
Takeo Yamada ◽  
Satoshi Yasuda ◽  
Motoo Yumura ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Carbon Nanotube Forests

scholarly journals Diameter control of single-walled carbon nanotube forests from 1.3–3.0 nm by arc plasma deposition

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Guohai Chen ◽  
Yasuaki Seki ◽  
Hiroe Kimura ◽  
Shunsuke Sakurai ◽  
Motoo Yumura ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Plasma Deposition ◽  
Arc Plasma ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Diameter Control ◽  
Carbon Nanotube Forests

Growth Window and Possible Mechanism of Millimeter-Thick Single-Walled Carbon Nanotube Forests

2008 ◽  
Vol 8 (11) ◽  
pp. 6123-6128 ◽  
Author(s):  
Kei Hasegawa ◽  
Suguru Noda ◽  
Hisashi Sugime ◽  
Kazunori Kakehi ◽  
Shigeo Maruyama ◽  
...  
Keyword(s):  
Growth Rate ◽  
Carbon Nanotube ◽  
Catalyst Layer ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Fe Catalyst ◽  
Hydrocarbon Reforming ◽  
Growth Method ◽  
Carbon Nanotube Forests ◽  
Swnt Growth

Our group recently reproduced the water-assisted growth method, so-called "SuperGrowth," of millimeter-thick single-walled carbon nanotube (SWNT) forests by using C2H4/H2/H2O/Ar reactant gas and Fe/Al2O3 catalyst. In this current work, a parametric study was carried out on both reaction and catalyst conditions. Results revealed that a thin Fe catalyst layer (about 0.5 nm) yielded rapid growth of SWNTs only when supported on Al2O3, and that Al2O3 support enhanced the activity of Fe, Co, and Ni catalysts. The growth window for the rapid SWNT growth was narrow, however. Optimum amount of added H2O increased the SWNT growth rate but further addition of H2O degraded both the SWNT growth rate and quality. Addition of H2 was also essential for rapid SWNT growth, but again, further addition decreased both the SWNT growth rate and quality. Because Al2O3 catalyzes hydrocarbon reforming, Al2O3 support possibly enhances the SWNT growth rate by supplying the carbon source to the catalyst nanoparticles. The origin of the narrow window for rapid SWNT growth is also discussed.

Nanotubes Oxidation Temperature Controls the Height of Single-Walled Carbon Nanotube Forests on Gold Micropatterned Thin Layers

Langmuir ◽  
2010 ◽  
Vol 26 (13) ◽  
pp. 11344-11348 ◽  
Author(s):  
Francesco Lamberti ◽  
Stefano Agnoli ◽  
Moreno Meneghetti ◽  
Nicola Elvassore
Keyword(s):  
Carbon Nanotube ◽  
Thin Layers ◽  
Oxidation Temperature ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Carbon Nanotube Forests

Highly pure, millimeter-tall, sub-2-nanometer diameter single-walled carbon nanotube forests

Carbon ◽  
2016 ◽  
Vol 107 ◽  
pp. 433-439 ◽  
Author(s):  
Guohai Chen ◽  
Shunsuke Sakurai ◽  
Motoo Yumura ◽  
Kenji Hata ◽  
Don N. Futaba
Keyword(s):  
Carbon Nanotube ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Carbon Nanotube Forests
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