DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Nam-Hoon | ko |
dc.contributor.author | Choi, Seon-Jin | ko |
dc.contributor.author | Kim, Sang-Joon | ko |
dc.contributor.author | Cho, Hee-Jin | ko |
dc.contributor.author | Jang, Ji-Soo | ko |
dc.contributor.author | Koo, Won-Tae | ko |
dc.contributor.author | Kim, Moonil | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.date.accessioned | 2016-06-07T08:54:10Z | - |
dc.date.available | 2016-06-07T08:54:10Z | - |
dc.date.created | 2016-02-01 | - |
dc.date.created | 2016-02-01 | - |
dc.date.issued | 2016-03 | - |
dc.identifier.citation | SENSORS AND ACTUATORS B-CHEMICAL, v.224, pp.185 - 192 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | http://hdl.handle.net/10203/207612 | - |
dc.description.abstract | In this work, catalytic Rh2O3-functionalized WO3 nanofibers (NFs) were synthesized via an electrospinning route and used as a highly selective acetone-sensing layer for potential diagnosis of diabetes. Catalytic rhodium nanoparticles (Rh NPs) with average diameters of 5.0 +/- 0.52 nm, which were synthesized by the polyol process, were dispersed in water with W precursor and poly(vinylpyrrolidone) (PVP) for electrospinning. As-spun Rh NP-loaded W precursor/PVP composite NFs were calcined at 600 degrees C for 1 h in air atmosphere to achieve Rh2O3-decorated WO3 NFs. Microstructure evolution and chemical composition of Rh2O3-decorated WO3 NFs as a function of Rh-loading amounts, i.e., 0.01 wt%, 0.05 wt%, 0.10 wt%, and 0.15 wt%, were examined using energy-dispersive X-ray spectroscopy (EDS), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM). The mean size (30 nm) of the WO3 crystallites in Rh2O3-decorated WO3 NFs was much smaller than that (60 nm) of the WO3 crystallites in pristine WO3 NFs. The Rh2O3-decorated WO3 NFs showed outstanding acetone (CH3COCH3) sensing response (R-air/R-gas = 41.2 to 5 ppm), which was 4.6 times higher than the response (R-air/R-gas = 9.0 to 5 ppm) of pristine WO3 NFs at highly humid atmosphere (95% RH). In addition, superior acetone cross-sensitivity of the Rh2O3-decorated WO3 NFs was observed in other interfering gases such as pentane (n-C5H12), ammonia (NH3), toluene (C6H5CH3), carbon monoxide (CO), and ethanol (C2H5OH) at 5 ppm. These results are highly promising for the accurate and selective detection of acetone in exhaled breath for potential diagnosis of diabetes. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | LOW-TEMPERATURE SYNTHESIS | - |
dc.subject | GAS SENSORS | - |
dc.subject | EXHALED-BREATH | - |
dc.subject | SNO2 SPHERES | - |
dc.subject | LUNG-CANCER | - |
dc.subject | DIAGNOSIS | - |
dc.subject | CATALYST | - |
dc.subject | RH | - |
dc.subject | SPECTROSCOPY | - |
dc.subject | TEMPLATES | - |
dc.title | Highly sensitive and selective acetone sensing performance of WO3 nanofibers functionalized by Rh2O3 nanoparticles | - |
dc.type | Article | - |
dc.identifier.wosid | 000366459500023 | - |
dc.identifier.scopusid | 2-s2.0-84946137225 | - |
dc.type.rims | ART | - |
dc.citation.volume | 224 | - |
dc.citation.beginningpage | 185 | - |
dc.citation.endingpage | 192 | - |
dc.citation.publicationname | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.identifier.doi | 10.1016/j.snb.2015.10.021 | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Jang, Ji-Soo | - |
dc.contributor.nonIdAuthor | Koo, Won-Tae | - |
dc.contributor.nonIdAuthor | Kim, Moonil | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Tungsten oxide nanofibers | - |
dc.subject.keywordAuthor | Rhodium nanoparticles | - |
dc.subject.keywordAuthor | Electrospinning | - |
dc.subject.keywordAuthor | Exhaled breath sensor | - |
dc.subject.keywordPlus | LOW-TEMPERATURE SYNTHESIS | - |
dc.subject.keywordPlus | GAS SENSORS | - |
dc.subject.keywordPlus | EXHALED-BREATH | - |
dc.subject.keywordPlus | SNO2 SPHERES | - |
dc.subject.keywordPlus | LUNG-CANCER | - |
dc.subject.keywordPlus | DIAGNOSIS | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | RH | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | TEMPLATES | - |
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