Controllable synthesis of carbon nanotubes with ultrafine inner diameters in ethanol flame

Graphite surface can be etched by metal particles because of the catalytic hydrogenation, resulting in unique etching channels along crystallographic high-symmetry directions that provide new possibilities for confinement applications. Herein, we demonstrate a confined growth carbon nanotubes (CNT) inside nanocutting channels on the surface of highly oriented pyrolytic graphite (HOPG). In particular, nickel (Ni) nanoparticles were used as catalytic knife to cut HPOG for creating channels with both zig-zag and armchair graphene edge types. Subsequently, multiwall CNTs were grown along the edge inside channels by reacting Ni nanoparticles catalyzing. It was found that the CNTs inside channels could be grown together along same orientation instead of aggregation, which may bring out a new idea on the controllable synthesis of carbon nanotubes.

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Controllable synthesis of carbon nanotubes via autothermal reforming of ethyl acetate

Materials & Design ◽

10.1016/j.matdes.2017.12.030 ◽

2018 ◽

Vol 141 ◽

pp. 150-158 ◽

Cited By ~ 5

Author(s):

Zhiwei Xue ◽

Yuesong Shen ◽

Peiwen Li ◽

Yu Zhang ◽

Yanwei Zeng ◽

...

Keyword(s):

Carbon Nanotubes ◽

Ethyl Acetate ◽

Autothermal Reforming ◽

Controllable Synthesis ◽

Synthesis Of Carbon Nanotubes

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Controllable synthesis of carbon nanotubes by changing the Mo content in bimetallic Fe–Mo/MgO catalyst

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2011.02.028 ◽

2011 ◽

Vol 127 (1-2) ◽

pp. 379-384 ◽

Cited By ~ 26

Author(s):

Xiangju Xu ◽

Shaoming Huang ◽

Zhi Yang ◽

Chao Zou ◽

Junfan Jiang ◽

...

Keyword(s):

Carbon Nanotubes ◽

Controllable Synthesis ◽

Mo Content ◽

Synthesis Of Carbon Nanotubes

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Ethanol flame synthesis of carbon nanotubes in deficient oxygen environments

Nanotechnology ◽

10.1088/0957-4484/27/16/165602 ◽

2016 ◽

Vol 27 (16) ◽

pp. 165602 ◽

Cited By ~ 5

Author(s):

Wei-Chieh Hu ◽

Ta-Hui Lin

Keyword(s):

Carbon Nanotubes ◽

Flame Synthesis ◽

Synthesis Of Carbon Nanotubes ◽

Ethanol Flame

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Acoustic-assisted assembly of an individual monochromatic ultralong carbon nanotube for high on-current transistors

Science Advances ◽

10.1126/sciadv.1601572 ◽

2016 ◽

Vol 2 (11) ◽

pp. e1601572 ◽

Cited By ~ 26

Author(s):

Zhenxing Zhu ◽

Nan Wei ◽

Huanhuan Xie ◽

Rufan Zhang ◽

Yunxiang Bai ◽

...

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

High Performance ◽

Areal Density ◽

High Density ◽

Great Effort ◽

Controllable Synthesis ◽

Expected Performance ◽

Synthesis Of Carbon Nanotubes

Great effort has been applied to scientific research on the controllable synthesis of carbon nanotubes (CNTs) with high semiconducting selectivity or high areal density toward the macroscale applications of high-performance carbon-based electronics. However, the key issue of compatibility between these two requirements for CNTs remains a challenge, blocking the expected performance boost of CNT devices. We report an in situ acoustic-assisted assembly of high-density monochromatic CNT tangles (m-CNT-Ts), consisting of one self-entangled CNT with a length of up to 100 mm and consistent chirality. On the basis of a minimum consumed energy model with a Strouhal number of approximately 0.3, the scale could be controlled within the range of 1 × 104 to 3 × 104 μm2 or even a larger range. Transistors fabricated with one m-CNT-T showed an on/off ratio of 103 to 106 with 4-mA on-state current, which is also the highest on-state current recorded so far for single CNT–based transistors. This acoustic-assisted assembly of chiral-consistent m-CNT-Ts will provide new opportunities for the fabrication of high-performance electronics based on perfect CNTs with high purity and high density.

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