Electromechanical Properties of Vertically Aligned Carbon Nanotube

2013 ◽  
Vol 705 ◽  
pp. 332-336 ◽  
Author(s):  
Alimorad Rashidi ◽  
M. Omidi ◽  
M. Choolaei ◽  
M. Nazarzadeh ◽  
A. Yadegari ◽  
...  

In this paper a simple method is used for fabrication of vertically aligned carbon nanotube (VACNT) within the cylindrical pores anodic aluminum oxide (AAO) substrate. Electronic and mechanical properties of VACNT have been obtained after removing AAO substrate. Vertically aligned carbon nanotube shows very interesting electromechanical properties which can be used in CNT-based sensors to detect chemical analytical or physical properties such as temperature orpressure.

2006 ◽  
Vol 317-318 ◽  
pp. 323-326 ◽  
Author(s):  
D.J. Park ◽  
S.H. Kim ◽  
J.H. Lee ◽  
Seong Hee Lee ◽  
Yong Ho Choa

Anodic aluminum oxide (AAO) was prepared in three types of aqueous solutions with various applied voltage. The mechanical property of AAO prepared in different electrolyte was investigated and hardness was increased on account of the increase of the thickness between pores. The mechanical property and microstructure change of AAO prepared in oxalic acid at 40V was investigated by heat treatment. AAO prepared in oxalic acid at 40V was transformed from amorphous to crystalline phase by heat treatment above 800oC and hardness was increased about 2.6 times with increase of heat treatment temperature.


2012 ◽  
Vol 271-272 ◽  
pp. 107-111 ◽  
Author(s):  
Chien Chon Chen ◽  
Chin Hua Cheng ◽  
Guo Yi Tang ◽  
Tai Nan Lin ◽  
Chung Kwei Lin

This paper discussed fabrication of TiO2 and BaTiO3 nanotubes by sol-gel method and used anodic aluminum oxide (AAO) as template. The mechanical properties of TiO2 or BaTiO3 NTs are not great, so a longer tube can crack easily, leading to the peeling off of the NTs film from the Ti substrate. Therefore, we propose to use AAO as a template, followed by deposition of TiO2 and BaTiO3 NT inside AAO to make a working electrode for further electronic devices.


2017 ◽  
Vol 727 ◽  
pp. 374-380 ◽  
Author(s):  
Xiao Fei Qu ◽  
Jing Jun Yuan ◽  
Xi Da Deng ◽  
Yu Chen Hou ◽  
Yu Fei Wang ◽  
...  

In this paper, a simple, efficient and environmental friendly method was proposed to fabricate TiO2/CdS nanotube arrays. The composite nanotubes with a core-shell coaxial structure were fabricated via a simple method of liquid deposition and double diffusion using anodic aluminum oxide (AAO) templates. The photocatalytic properties of the nanotube arrays (TiO2, TiO2/CdS) were confirmed by the degradation of methyl orange (MO) under UV irradiation. Compared to bare TiO2 nanotube arrays, TiO2/CdS composite nanotube arrays showed improved photocatalytic performance: The degradation efficiency of TiO2/CdS and TiO2 nanotube arrays towards methyl orange was 65% and 39%, respectively.


2013 ◽  
Vol 421 ◽  
pp. 319-323
Author(s):  
Jafar Khan Kasi ◽  
Ajab Khan Kasi ◽  
Muzamil Bokhari ◽  
Nitin Afzulpurkar

Carbon nanotube (CNT) is one of the most attractive nanomaterials which may be used in many potential applications of nanotechnology due to its excellent mechanical, electrical and thermal properties. We demonstrated the fabrication of carbon nanotube at the surface of anodic aluminum oxide (AAO) membrane by chemical vapor deposition (CVD) method. Acetylene was used as a hydrocarbon source and Fe as catalyst. CNT was synthesized at different temperature. The iron catalyst was confined in the holes of the AAO membrane. A variety of carbon structures such as nanotubes, helices, spiral, and hook-like curved shapes in the range of micrometer were synthesized. High graphitic multiwall carbon nanotube (MWCNT) was found at 700-750°C temperature.


2005 ◽  
Vol 17 (24) ◽  
pp. 6181-6185 ◽  
Author(s):  
Pyung-Soo Lee ◽  
Ok-Joo Lee ◽  
Sun-Kyu Hwang ◽  
Seung-Ho Jung ◽  
Sang Eun Jee ◽  
...  

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