Nanoscale Res Lett
Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea.
Published: November 2011
Noxious gas sensors were fabricated using carbon nanotubes [CNTs] with palladium nanoparticles [Pd NPs]. An increase in the resistance was observed under ammonia for both CNTs and CNT-Pd sensors. Under carbon monoxide [CO], the two sensors exhibited different behaviors: for CNT sensors, their resistance decreased slightly with CO exposure, whereas CNT-Pd sensors showed an increase in resistance. The sensing properties and effect of Pd NPs were demonstrated, and CNT-Pd sensors with good repeatability and fast responses over a range of concentrations may be used as a simple and effective noxious gas sensor at room temperature.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3241478 | PMC |
http://dx.doi.org/10.1186/1556-276X-6-605 | DOI Listing |
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