DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Inkun | ko |
dc.contributor.author | Choi, Seonjin | ko |
dc.contributor.author | Park, Kwang Min | ko |
dc.contributor.author | Lee, Sun Sook | ko |
dc.contributor.author | Choi, Sungho | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.contributor.author | Park, C. O | ko |
dc.date.accessioned | 2014-08-29T04:17:25Z | - |
dc.date.available | 2014-08-29T04:17:25Z | - |
dc.date.created | 2014-06-03 | - |
dc.date.created | 2014-06-03 | - |
dc.date.issued | 2014-07 | - |
dc.identifier.citation | SENSORS AND ACTUATORS B-CHEMICAL, v.197, no.5, pp.300 - 307 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | http://hdl.handle.net/10203/189040 | - |
dc.description.abstract | Chemoresistive H2S sensors using various oxide nanoparticles were prepared and heat-treated at 600 degrees C in an effort to define halitosis in human breath. WO3, ZnO, and SnO2 were tested as sensing materials, among which WO3 showed the highest stability to H2S. XPS analysis showed a metal sulfate peak on the surface of ZnO and SnO2, which causes a recovery problem after 2 ppm H2S exposure. On the contrary, the WO3 sensor showed a stable signal in long-term operation in the presence of H2S gas. WO3 gas sensors decorated with various catalytic metals were fabricated to investigate their sensing properties in the 0.2-5 ppm H2S range with 80% relative humidity (RH). A 0.03 wt% Au-doped WO3 sensor exhibited excellent H2S sensitivity (R-air/R-gas = 12.40 at 2 ppm) toward H2S, whereas pure WO3 showed a sensitivity of 4.85 with negligible interference from the volatile organic compounds (VOCs). | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | GAS-SENSING PROPERTIES | - |
dc.subject | HYDROGEN-SULFIDE | - |
dc.subject | SELECTIVE DETECTION | - |
dc.subject | LOW-TEMPERATURE | - |
dc.subject | LUNG-CANCER | - |
dc.subject | BREATH | - |
dc.subject | OXIDE | - |
dc.subject | FILM | - |
dc.title | The stability, sensitivity and response transients of ZnO, SnO2 and WO3 sensors under acetone, toluene and H2S environments | - |
dc.type | Article | - |
dc.identifier.wosid | 000334753200040 | - |
dc.identifier.scopusid | 2-s2.0-84897033919 | - |
dc.type.rims | ART | - |
dc.citation.volume | 197 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 300 | - |
dc.citation.endingpage | 307 | - |
dc.citation.publicationname | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.identifier.doi | 10.1016/j.snb.2014.02.043 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.localauthor | Park, C. O | - |
dc.contributor.nonIdAuthor | Lee, Sun Sook | - |
dc.contributor.nonIdAuthor | Choi, Sungho | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | H2S sensor | - |
dc.subject.keywordAuthor | WO3 | - |
dc.subject.keywordAuthor | SnO2 | - |
dc.subject.keywordAuthor | ZnO | - |
dc.subject.keywordAuthor | Stability | - |
dc.subject.keywordAuthor | Sensitivity | - |
dc.subject.keywordPlus | GAS-SENSING PROPERTIES | - |
dc.subject.keywordPlus | HYDROGEN-SULFIDE | - |
dc.subject.keywordPlus | SELECTIVE DETECTION | - |
dc.subject.keywordPlus | LOW-TEMPERATURE | - |
dc.subject.keywordPlus | LUNG-CANCER | - |
dc.subject.keywordPlus | BREATH | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | FILM | - |
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