Dispersion of multiwall carbon nanotubes by sodium dodecyl sulfate for preparation of modified electrodes toward detecting hydrogen peroxide

2007 ◽  
Vol 61 (17) ◽  
pp. 3571-3574 ◽  
Author(s):  
Jing Zhang ◽  
Lian Gao
2013 ◽  
Vol 357-360 ◽  
pp. 986-989 ◽  
Author(s):  
Ren Juan Sun ◽  
Shan Shan Wei ◽  
Zhi Qin Zhao ◽  
Da Wei Huang ◽  
Zhi Ge

This paper studied the ratio of dispersion of multiwall carbon nanotubes (MWNTs) in different surfactant solutions. Effects of surfactant type and concentration and MWNTs to surfactant ratio were investigated. Test results indicate that sodium dodecyl sulfate (SDS) and TNWDIS were better surfactants. Samples with SDS to MWNTs ratio of 6 or TNWDIS to MWNTs ratio of 0.6 had higher ratio of dispersion.


2014 ◽  
Vol 1752 ◽  
pp. 111-116
Author(s):  
S. Chandrasekar ◽  
K.S.V. Santhanam ◽  
Y. Yue ◽  
K. Kalaiazagan ◽  
L. Fuller

ABSTRACTA nano thermal sensor was made by depositing carbon nanotubes from a medium containing a) methylene chloride b)sodium dodecyl sulfate and c) Baytron-P (polymer) assisted sodium dodecyl sulfate. The nano thermal sensors showed d.c. electrical resistance as independent of temperature when the sensors were made by procedures (a) or (b). The electrical resistivity in both the situations has been independent of temperature. When the nanosensor is made with carbon nanotubes by assisted method (c), the d.c. electrical resistance decreased with temperature. The negative temperature coefficient (TCR) is manifested in the semiconducting property of the active material. The sensor behavior is reproducible and varies linearly with temperature. The nanosensor made by non assisted carbon nanotube showed zero TCR. This is probably the first instance of assisted thermal sensor made with single walled carbon nanotubes.


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