SiO2-Multiwalled Carbon Nanotube Base Gas Sensor

S. Jesen; S. Ruangphet; S. Cheirsirikul

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

Paper Titles

Assessment of Mechanical Properties and Transformation Behavior of Locally-Made Ni-Ti Alloys Used in Orthodontics
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Effect of Direct Electric Resistance Heat Treatment on Mechanical Properties of NiTi Orthodontic Arch Wires
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Materials of Nanocrystalline Sr_1-xBa_xBi₄Ti₄O₁₅ for Piezoelectric Sensor
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Electrical Conductivity of Poly(3,4-Ethylenedioxythiophene)-Poly(Styrenesulfonate) Coatings on Polyacrylonitrile Nanofibers for Sensor Applications
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SiO₂-Multiwalled Carbon Nanotube Base Gas Sensor
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Application of the PEGDE Modified Silk Fibroin Membrane to an Amperometric Glucose Biosensor
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Enhanced the Performance of Fluorescence Gas Sensor of Porphyrin Dye by Using TiO₂ Nanoparticles
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Determination of Mn Site in BaTiO₃by X-Ray Absorption Spectroscopy
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Changes in Ferroelectric Properties of 0.7PMN–0.3PT Ceramic with Compressive Stress
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 55-57SiO2-Multiwalled Carbon Nanotube Base Gas Sensor

SiO₂-Multiwalled Carbon Nanotube Base Gas Sensor

Abstract:

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%.