One-step liquid-phase synthesis of platinum nanocatalysts supported on aligned carbon nanotube arrays

2018 ◽  
Vol 204 ◽  
pp. 323-327 ◽  
Author(s):  
Kiyofumi Yamagiwa ◽  
Jun Kuwano
Keyword(s):  
Carbon Nanotube ◽  
Liquid Phase ◽  
Nanotube Arrays ◽  
Phase Synthesis ◽  
Carbon Nanotube Arrays ◽  
One Step

Effects of H2O Addition on One-Step Liquid-Phase Synthesis of Highly Aligned Carbon Nanotubes

2010 ◽  
Vol 445 ◽  
pp. 201-204 ◽  
Author(s):  
Shunsuke Yamashita ◽  
Tomoka Kikitsu ◽  
Yoshihiro Yamaguchi ◽  
Kiyofumi Yamagiwa ◽  
Jun Kuwano
Keyword(s):  
Growth Rate ◽  
Liquid Phase ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Nanotube Arrays ◽  
Phase Synthesis ◽  
Carbon Nanotube Arrays ◽  
Aligned Carbon Nanotubes ◽  
One Step ◽  
The One

Highly aligned carbon nanotube arrays (HACNTAs) were synthesized on a stainless steel substrate from a methanol solution of Co(Ⅲ) acetylacetonate by the one-step liquid-phase synthesis, and effects of H2O addition on the HACNTA growth were examined. The growth rate was considerably accelerated, and the lifetime of the catalysts was prolonged by addition of a small amount of H2O. HACNTAs with over 400 m thickness were formed on the side surfaces of the substrate by resistance-heating for one hour. This suggests that the added H2O removes deposited amorphous carbons from the catalyst surfaces and consequently accelerates the growth rate.

scholarly journals One-step production of monolith-supported long carbon nanotube arrays

Carbon ◽  
2013 ◽  
Vol 51 ◽  
pp. 327-334 ◽  
Author(s):  
Daniel R. Minett ◽  
Justin P. O’Byrne ◽  
Matthew D. Jones ◽  
Valeska P. Ting ◽  
Timothy J. Mays ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays ◽  
One Step

Hierarchical Nano- and Micro-engineered Interlaminar Reinforcement of Advanced Aerospace Grade Composites with Carbon Nanotube Arrays

2021 ◽  
Author(s):  
Jeonyoon Lee ◽  
Luiz H. Acauan ◽  
Estelle Kalfon-Cohen ◽  
Seth S. Kessler ◽  
Brian L. Wardle
Keyword(s):  
Carbon Nanotube ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays

scholarly journals Substrate adhesion evolves non-monotonically with processing time in millimeter-scale aligned carbon nanotube arrays

Nanoscale ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 261-271
Author(s):  
Ashley L. Kaiser ◽  
Dale L. Lidston ◽  
Sophie C. Peterson ◽  
Luiz H. Acauan ◽  
Stephen A. Steiner ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Adhesion Strength ◽  
Processing Time ◽  
Effective Modulus ◽  
Work Of Adhesion ◽  
Process Time ◽  
Nanotube Arrays ◽  
Substrate Adhesion ◽  
Carbon Nanotube Arrays

Aligned carbon nanotube (CNT) array adhesion strength evolves with CNT process time, decreasing and then increasing during growth and annealing, as captured by models relating CNT diameter, array effective modulus, and CNT–substrate work of adhesion.

scholarly journals Optically Induced Field-Emission Source Based on Aligned Vertical Carbon Nanotube Arrays

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1810
Author(s):  
Mengjie Li ◽  
Qilong Wang ◽  
Ji Xu ◽  
Jian Zhang ◽  
Zhiyang Qi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Field Emission ◽  
Field Enhancement ◽  
Absorption Efficiency ◽  
Photon Absorption ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays ◽  
Induced Field ◽  
Optically Induced

Due to the high field enhancement factor and photon-absorption efficiency, carbon nanotubes (CNTs) have been widely used in optically induced field-emission as a cathode. Here, we report vertical carbon nanotube arrays (VCNTAs) that performed as high-density electron sources. A combination of high applied electric field and laser illumination made it possible to modulate the emission with laser pulses. When the bias electric field and laser power density increased, the emission process is sensitive to a power law of the laser intensity, which supports the emission mechanism of optically induced field emission followed by over-the-barrier emission. Furthermore, we determine a polarization dependence that exhibits a cosine behavior, which verifies the high possibility of optically induced field emission.

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