SiO2-Multiwalled Carbon Nanotube Base Gas Sensor

Abstract:

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The gas sensors are fabricated from multiwalled carbon nanotube-based. The electrode is constructed from platinum (Pt) and titanium (Ti). The gas sensors are used for detecting oxygen (O2), ethyl alcohol (C2H5OH) and ammonia (NH3) by measuring the charge of their electrical capacitance. In the ratio silicon dioxide (SiO2) : carbon nanotube (MWCNTs) = 100:1 by weight, the electrical capacitance of the film layer has changed at the highest rate. The response of oxygen with concentration of 10,000 ppm, 20% of ethyl alcohol and 20% of ammonia, it is found that the electrical capacitance of thin layer has change about 34%, 60% and 70%.

Info:

Periodical:

Advanced Materials Research (Volumes 55-57)

Main Theme:

Edited by:

Tawee Tunkasiri

Pages:

261-264

DOI:

10.4028/www.scientific.net/AMR.55-57.261

Citation:

S. Jesen et al., "SiO2-Multiwalled Carbon Nanotube Base Gas Sensor", Advanced Materials Research, Vols. 55-57, pp. 261-264, 2008

Online since:

August 2008

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Price:

$35.00

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