dc.contributor.authorZhao, Weiyun
dc.contributor.authorFam, Derrick Wen Hui
dc.contributor.authorYin, Zongyou
dc.contributor.authorSun, Ting
dc.contributor.authorTan, Huiteng
dc.contributor.authorLiu, Weiling
dc.contributor.authorTok, Alfred Iing Yoong
dc.contributor.authorBoey, Freddy Yin Chiang
dc.contributor.authorZhang, Hua
dc.contributor.authorHng, Huey Hoon
dc.contributor.authorYan, Qingyu
dc.identifier.citationZhao, W., Fam, D. W. H., Yin, Z., Sun, T., Tan, H. T., Liu, W., et al. (2012). A carbon monoxide gas sensor using oxygen plasma modified carbon nanotubes. Nanotechnology, 23(42).en_US
dc.description.abstractCarbon monoxide (CO) is a highly toxic gas that can be commonly found in many places. However, it is not easily detected by human olfaction due to its colorless and odorless nature. Therefore, highly sensitive sensors need to be developed for this purpose. Carbon nanotubes (CNTs) have an immense potential in gas sensing. However, CNT-based gas sensors for sensing CO are seldom reported due to the lack of reactivity between CO and CNTs. In this work, O2 plasma modified CNT was used to fabricate a CNT gas sensor. The plasma treated CNTs showed selectively towards CO, with the capability of sensing low concentrations of CO (5 ppm) at room temperature, while the pristine CNTs showed no response. UV spectra and oxygen reduction reaction provided evidence that the difference in sensing property was due to the elimination of metallic CNTs and enhancement of the oxygen reduction property.en_US
dc.rights© 2012 IOP Publishing Ltd.en_US
dc.titleA carbon monoxide gas sensor using oxygen plasma modified carbon nanotubesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US

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