DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bulemo, Peresi Majura | ko |
dc.contributor.author | Lee, Jiyoung | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.date.accessioned | 2018-11-22T07:19:06Z | - |
dc.date.available | 2018-11-22T07:19:06Z | - |
dc.date.created | 2018-11-19 | - |
dc.date.created | 2018-11-19 | - |
dc.date.created | 2018-11-19 | - |
dc.date.issued | 2018-09 | - |
dc.identifier.citation | 센서학회지, v.27, no.5, pp.345 - 351 | - |
dc.identifier.issn | 1225-5475 | - |
dc.identifier.uri | http://hdl.handle.net/10203/246993 | - |
dc.description.abstract | We employed an unprecedented technique to synthesize porous WO3@SnO2 nanofibers exhibiting core-shell and fiber-in-tube con- figurations. Firstly, 2-methylimidazole was uniformly incorporated in as-spun nanofibers containing ammonium metatungstate hydrateand the sacrificial polymer (polyacrylonitrile). Secondly, the 2-methylimidazole on the surfaces of nanofibers was complexed with tin(II)chloride (SnCl2) via simple impregnation of the as-spun nanofibers in ethanol containing tin(II) chloride dihydrate (SnCl2·2H2O). Thepresence of vacant p-orbitals in tin (Sn) and the nucleophilic nitrogen on the imidazole ring allowed for the reaction between SnCl2 and2-methylimidazole, forming adducts on the surfaces of the as-spun nanofibers. The calcination of these nanofibers resulted in porous WO3@SnO2 nanofibers with a higher surface area (55.3 m2·g 1) and a better response to 1-5 ppm of acetone than pristine SnO2 NFs synthesized using a similar method. An improved response to acetone was achieved upon functionalization of the WO3@SnO2 nano-fibers with catalytic palladium nanoparticles. This work demonstrates the potential application of WO3@SnO2 nanofibers as sensing lay- ers for chemiresistive sensory devices for the detection of acetone in exhaled breath. | - |
dc.language | English | - |
dc.publisher | 한국센서학회 | - |
dc.title | Heterogeneous Porous WO3@SnO2 Nanofibers as Gas Sensing Layers for Chemiresistive Sensory Devices | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.citation.volume | 27 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 345 | - |
dc.citation.endingpage | 351 | - |
dc.citation.publicationname | 센서학회지 | - |
dc.identifier.doi | 10.5369/JSST.2018.27.5.345 | - |
dc.identifier.kciid | ART002389664 | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Bulemo, Peresi Majura | - |
dc.contributor.nonIdAuthor | Lee, Jiyoung | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordPlus | WO3@SnO2 heteronanostructures | - |
dc.subject.keywordPlus | adducts | - |
dc.subject.keywordPlus | core-shell | - |
dc.subject.keywordPlus | fiber-in-tube | - |
dc.subject.keywordPlus | gas sensors | - |
dc.subject.keywordPlus | exhaled breath | - |
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