High-Density Carbon Nanotube Forest Growth on Copper Foil for Enhanced Thermal and Electrochemical Interfaces

2019 ◽  
Vol 3 (1) ◽  
pp. 77-83
Author(s):  
Bethany. R. Lettiere ◽  
Cecile A. C. Chazot ◽  
Kehang Cui ◽  
A. John Hart
Keyword(s):  
Carbon Nanotube ◽  
Copper Foil ◽  
Forest Growth ◽  
High Density ◽  
Electrochemical Interfaces

A digital miniature x-ray tube with a high-density triode carbon nanotube field emitter

2013 ◽  
Vol 102 (2) ◽  
pp. 023504 ◽  
Author(s):  
Jin-Woo Jeong ◽  
Jun-Tae Kang ◽  
Sungyoul Choi ◽  
Jae-Woo Kim ◽  
Seungjoon Ahn ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Density ◽  
Field Emitter ◽  
X Ray

Modulation of carbon nanotube yield and type through the collective effects of initially deposited catalyst amount and MgO underlayer annealing temperature

MRS Advances ◽  
2018 ◽  
Vol 4 (3-4) ◽  
pp. 139-146
Author(s):  
Takashi Tsuji ◽  
Guohai Chen ◽  
Kenji Hata ◽  
Don N. Futaba ◽  
Shunsuke Sakurai
Keyword(s):  
Carbon Nanotube ◽  
Annealing Temperature ◽  
Catalyst Surface ◽  
Catalyst System ◽  
Forest Growth ◽  
Collective Effects ◽  
High Yield ◽  
Force Microscopy ◽  
Atomic Force ◽  
Fe Catalysts

ABSTRACTRecently, the millimetre-scale, highly efficient growth of single-wall carbon nanotube (SWCNT) forests from iron (Fe) catalysts has been reported through the annealing of the magnesia (MgO) underlayer. Here, we report the modulation of the CNT yield (height) and average number of CNT walls for a Fe/MgO catalyst system through the collective effects of initial Fe amount and MgO annealing temperature. Our results revealed the existence of a well-defined region for high yield SWCNT forest growth in the domain of deposited Fe thickness and MgO annealing temperature. Through topographic examinations of the catalyst surface using atomic force microscopy, we confirmed that our results stem from the collective effects of increased amounts of surface-bound Fe through the amount of deposition and suppression of Fe subsurface diffusion, together govern the amount of surface-bound catalyst. The combination of these mechanisms determined the final nanoparticle size, density, and stability and could explain the three distinctly defined regions: low yield SWCNT growth, high yield SWCNT growth, and high yield multiwall CNT growth. Furthermore, we explained the observed borders between these three regions.

scholarly journals Flexible solid-state supercapacitors based on shrunk high-density aligned carbon nanotube arrays

2018 ◽  
Vol 67 (2) ◽  
pp. 028201
Author(s):  
Zhu Qi ◽  
Yuan Xie-Tao ◽  
Zhu Yi-Hao ◽  
Zhang Xiao-Hua ◽  
Yang Zhao-Hui
Keyword(s):  
Carbon Nanotube ◽  
Solid State ◽  
High Density ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays

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

Fabrication and characterization of microwave cured high-density polyethylene/carbon nanotube and polypropylene/carbon nanotube composites

2019 ◽  
Vol 53 (15) ◽  
pp. 2091-2104 ◽  
Author(s):  
Gaurav Arora ◽  
Himanshu Pathak ◽  
Sunny Zafar
Keyword(s):  
Carbon Nanotube ◽  
High Density Polyethylene ◽  
High Density ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Scanning Electron

Carbon nanotubes have been used as reinforcements in polymers due to their high elasticity, flexibility, and thermal conductivity. In this study, pellets of high-density polyethylene +20 wt% carbon nanotube and polypropylene +20 wt% carbon nanotube were cured using microwave energy. X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, uniaxial tensile test, and scanning electron microscopy was used to study morphology, thermal stability, and mechanical performance of the microwave-cured composites. X-ray diffraction analysis confirmed the bonding between the polymer and carbon nanotube as the peaks shifted and intensified. From the thermal study, it was observed that melting point of the composites is affected by microwave curing and the crystallinity of high-density polyethylene/carbon nanotube and polypropylene/carbon nanotube changed by 57.67% and 47.28%, respectively. Results of the uniaxial tensile test indicated that Young’s modulus of microwave cured high-density polyethylene/carbon nanotube and polypropylene/carbon nanotube composites were improved by 295% and 787.8%, respectively. Scanning electron microscopic fractography shows the stretching of polymer over-lapped on carbon nanotubes in the direction of the applied load.

Directed assembly of high density single-walled carbon nanotube patterns on flexible polymer substrates

2009 ◽  
Vol 20 (29) ◽  
pp. 295302 ◽  
Author(s):  
Xugang Xiong ◽  
Chia-Ling Chen ◽  
Peter Ryan ◽  
Ahmed A Busnaina ◽  
Yung Joon Jung ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Directed Assembly ◽  
High Density ◽  
Single Walled Carbon Nanotube ◽  
Polymer Substrates ◽  
Single Walled Carbon ◽  
Flexible Polymer
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