Noxious gas detection using carbon nanotubes with Pd nanoparticles

Hyang Hee Choi, Junmin Lee, Ki Young Dong, Byeong Kwon Ju, Wooyoung Lee

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16 Citations (Scopus)


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.

Original languageEnglish
Article number605
Pages (from-to)1-6
Number of pages6
JournalNanoscale Research Letters
Publication statusPublished - 2011

Bibliographical note

Funding Information:
This work was supported by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0093823).

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics


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