Design of a highly sensitive and selective C2H5OH sensor using p-type Co3O4 nanofibers
DC Field | Value | Language |
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dc.contributor.author | Yoon, Ji-Wook | - |
dc.contributor.author | Choi, Joong-Ki | - |
dc.contributor.author | Lee, Jong-Heun | - |
dc.date.accessioned | 2021-09-06T23:13:01Z | - |
dc.date.available | 2021-09-06T23:13:01Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-01-03 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/109103 | - |
dc.description.abstract | The Co3O4 nanofibers were prepared by electrospinning and their gas sensing characteristics were investigated. The Co3O4 sensors prepared by heat treatment of as-spun precursor fibers at 500 and 600 degrees C showed well-developed one-dimensional morphologies and exhibited high responses to 100 ppm C2H5OH (R-g/R-a = 51.2 and 45.3; R-g, resistance in gas; R-a, resistance in air) at 301 degrees C with negligible cross-responses to 100 ppm CO, C3H8, and H-2 (R-g/R-a = 1.02-2.7). In contrast, the most of one-dimensional morphology of the Co3O4 specimen was lost and the response to 100 ppm C2H5OH became significantly lower when the heat treatment temperature was increased to 700 degrees C or when the nanofibers were ultrasonically disintegrated into primary particles. The significant decrease of the gas response was explained and discussed in relation to the gas sensing mechanism of a p-type semiconductor, the morphology of specimens, and the connecting configuration between nanoparticles and nanofibers. (C) 2011 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | SENSING PROPERTIES | - |
dc.subject | FABRICATION | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | NANOMATERIALS | - |
dc.subject | FIBERS | - |
dc.title | Design of a highly sensitive and selective C2H5OH sensor using p-type Co3O4 nanofibers | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Heun | - |
dc.identifier.doi | 10.1016/j.snb.2011.11.002 | - |
dc.identifier.scopusid | 2-s2.0-84856223563 | - |
dc.identifier.wosid | 000301549400076 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.161, no.1, pp.570 - 577 | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 161 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 570 | - |
dc.citation.endPage | 577 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | SENSING PROPERTIES | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | NANOMATERIALS | - |
dc.subject.keywordPlus | FIBERS | - |
dc.subject.keywordAuthor | Co3O4 nanofibers | - |
dc.subject.keywordAuthor | Gas sensor | - |
dc.subject.keywordAuthor | Electrospinning | - |
dc.subject.keywordAuthor | p-type | - |
dc.subject.keywordAuthor | Gas sensing mechanism | - |
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