scholarly journals Carbon Nanotubes: Highly Stretchable Supercapacitors via Crumpled Vertically Aligned Carbon Nanotube Forests (Adv. Energy Mater. 22/2019)

2019 ◽  
Vol 9 (22) ◽  
pp. 1970082 ◽  
Author(s):  
Changyong Cao ◽  
Yihao Zhou ◽  
Stephen Ubnoske ◽  
Jianfeng Zang ◽  
Yunteng Cao ◽  
...  
2019 ◽  
Vol 9 (22) ◽  
pp. 1900618 ◽  
Author(s):  
Changyong Cao ◽  
Yihao Zhou ◽  
Stephen Ubnoske ◽  
Jianfeng Zang ◽  
Yunteng Cao ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (102) ◽  
pp. 83945-83952 ◽  
Author(s):  
N. M. Briggs ◽  
S. P. Crossley

The important influence of Al on Fe and Co catalyzed growth of vertically aligned carbon nanotube forests between layers of a lamellar support is reported.


RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67685-67692 ◽  
Author(s):  
Piyush Jagtap ◽  
Amit Kumar ◽  
Praveen Kumar

Carbon nanotube forests (CNTFs) are porous ensembles of vertically aligned carbon nanotubes, exhibiting excellent reversible compressibility and electric field tunable stress–strain, creep, and viscoelastic responses.


2007 ◽  
Vol 1018 ◽  
Author(s):  
Zhengchun Liu ◽  
Sang Hwui Lee ◽  
Navdeep Bajwa ◽  
Lijie Ci ◽  
Swastik Kar ◽  
...  

AbstractWe report on a method for direct measurement of site density of vertically-aligned carbon nanotubes (CNTs). Site density is an important parameter of vertically-aligned carbon nanotube forests for various applications. By freezing the CNT forests in a polymer matrix and exposing the CNT ends, we obtained the site density of vertically aligned multi-walled CNTs through SEM observation and particle counting. Site densities of multi-walled CNTs grown by two different CVD processes, ferrocene/xylene process and Fe-Al/ethylene process, were measured to be ∼10 tubes/Ým2 and ∼53 tubes/Ým2, respectively. The results of site density distributions indicate non-uniform growth of carbon nanotubes at the micrometer scale in both processes.


2003 ◽  
Vol 772 ◽  
Author(s):  
Masakazu Muroyama ◽  
Kazuto Kimura ◽  
Takao Yagi ◽  
Ichiro Saito

AbstractA carbon nanotube triode using Helicon Plasma-enhanced CVD with electroplated NiCo catalyst has been successfully fabricated. Isolated NiCo based metal catalyst was deposited at the bottom of the cathode wells by electroplating methods to control the density of carbon nanotubes and also reduce the activation energy of its growth. Helicon Plasma-enhanced CVD (HPECVD) has been used to deposit nanotubes at 400°C. Vertically aligned carbon nanotubes were then grown selectively on the electroplated Ni catalyst. Field emission measurements were performed with a triode structure. At a cathode to anode gap of 1.1mm, the turn on voltage for the gate was 170V.


Soft Matter ◽  
2017 ◽  
Vol 13 (37) ◽  
pp. 6390-6395 ◽  
Author(s):  
Ye Rim Lee ◽  
Hyungho Kwon ◽  
Do Hoon Lee ◽  
Byung Yang Lee

Electrodes consisting of silver nanowires and carbon nanotubes enable a dielectric elastomer actuator to become highly stretchable and optically transparent.


2014 ◽  
Vol 5 ◽  
pp. 1575-1579 ◽  
Author(s):  
Christoph Nick ◽  
Sandeep Yadav ◽  
Ravi Joshi ◽  
Christiane Thielemann ◽  
Jörg J Schneider

The growth of cortical neurons on three dimensional structures of spatially defined (structured) randomly oriented, as well as on vertically aligned, carbon nanotubes (CNT) is studied. Cortical neurons are attracted towards both types of CNT nano-architectures. For both, neurons form clusters in close vicinity to the CNT structures whereupon the randomly oriented CNTs are more closely colonised than the CNT pillars. Neurons develop communication paths via neurites on both nanoarchitectures. These neuron cells attach preferentially on the CNT sidewalls of the vertically aligned CNT architecture instead than onto the tips of the individual CNT pillars.


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