Noxious gas detection using carbon nanotubes with Pd nanoparticles

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

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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
Pages (from-to)1-6
Number of pages6
JournalNanoscale Research Letters
Volume6
DOIs
Publication statusPublished - 2011 Dec 1

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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