Title :
Gas-sensing properties of multi-walled carbon-nanotube sheet decorated with cobalt oxides
Author :
Daewoong Jung ; Maeum Han ; Jinhong Kim ; Lee, Gil S.
Author_Institution :
Electr. Eng. Dept., Univ. of Texas at Dallas, Richardson, TX, USA
Abstract :
A hybrid, nanocomposite carbon nanotube (CNT) sheet decorated with cobalt oxide (Co3O4) serving as gas sensor was fabricated for detecting hydrogen (H2). In order to improve performance of the sensor, Co3O4 nanoparticles were decorated on the surface area of the CNT sheets by electrodeposition, which is an easy and simple method for fabricating hybrid composites. Moreover, the effect of surface area on sensitivity of CNT/Co3O4 composite was further investigated, and we found the mean sizes of the Co3O4 nanoparticles significantly affected the sensitivity of the composite.
Keywords :
carbon nanotubes; cobalt compounds; electrodeposition; gas sensors; hydrogen; nanocomposites; nanofabrication; nanosensors; C-Co3O4; CNT sheet; H2; electrodeposition; gas sensor; multiwalled carbon-nanotube sheet; nanocomposite carbon nanotube sheet; Carbon nanotubes; Gas detectors; Materials; Nanoparticles; Sensitivity; Temperature sensors; Carbon Nanotube sheet; Cobalt oxide; Gas sensor;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2014 IEEE 14th International Conference on
Conference_Location :
Toronto, ON
DOI :
10.1109/NANO.2014.6968162
