Noxious gas detection using carbon nanotubes with Pd nanoparticles

作者：Choi Hyang Hee; Lee Junmin; Dong Ki Young; Ju Byeong Kwon; Lee Wooyoung^*

来源：Nanoscale Research Letters, 2011, 6: 1-6.

DOI：10.1186/1556-276X-6-605

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.

• 出版日期2011-11-24