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http://dx.doi.org/10.5369/JSST.2004.13.4.292

NO Gas Sensing Characteristics of Single-Walled Carbon Nanotubes and Heating Effect  

Kim, Min-Ju (Kyungpook National University Materials Science & Metallurgy)
Yun, Kwang-Hyun (Kyungpook National University Materials Science & Metallurgy)
Huh, Jeung-Soo (Kyungpook National University Materials Science & Metallurgy)
Publication Information
Journal of Sensor Science and Technology / v.13, no.4, 2004 , pp. 292-297 More about this Journal
Abstract
Carbon nanotubes (CNT) were synthesized by arc-discharge method. To fabricate CNT sensor, CNT powder was dispersed in ${\alpha}$-Terpinol($C_{10}H_{17}OH$) solution. The CNT tilms were fabricated by screen printing method on the interdigitated Pt/Pd alloy electrode. The microstructure of CNT film was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In order to investigate the gas sensing characteristics of the film, the CNT film was experimented to measure NO response and recovery time. The CNT sensor with a heater was compared to that without a heater. And this sensor shows better reproductibility and faster recovery time than another CNT sensors. We suggest the possibility to utilize a CNT as new sensing materials for environmental monitoring.
Keywords
gas sensor; CNT; NO gas; heater;
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