Gas sensing characteristics of p-type Cr2O3 and Co3O4 nanofibers depending on inter-particle connectivity
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, Ji-Wook | - |
dc.contributor.author | Kim, Hyo-Joong | - |
dc.contributor.author | Jeong, Hyun-Mook | - |
dc.contributor.author | Lee, Jong-Heun | - |
dc.date.accessioned | 2021-09-05T04:54:21Z | - |
dc.date.available | 2021-09-05T04:54:21Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-10 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/97332 | - |
dc.description.abstract | p-Type Cr2O3 and Co3O4 oxide semiconductor nanofibers, with different connecting configurations, were prepared by controlling the ultrasonic disintegration of nanofibers and their C2H5OH sensing characteristics were investigated. The ratios between resistances in 100 ppm C2H5OH, and air, of Cr2O3 (at 350 degrees C) and Co3O4 sensors (at 300 degrees C) consisting of long nanofibers were found to be 22.1 +/- 1.4 and 82.4 +/- 10.2, respectively. These values were significantly higher than those of Cr2O3 and Co3O4 sensors (4.9 +/- 1.1 and 5.7 +/- 1.4), which consisted of less-connective primary particles disintegrated from nanofibers. The decrease of gas response, and increase in sensor resistance, with ultrasonic disintegration of nanofibers is explained in relation to a decrease of contact area between primary particles, indicating that interparticle connectivity is a key parameter in determining the gas response of p-type oxide semiconductors. (C) 2014 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | GRAIN-SIZE | - |
dc.subject | OXIDE NANOSTRUCTURES | - |
dc.subject | CATALYTIC-OXIDATION | - |
dc.subject | SENSORS | - |
dc.subject | TOLUENE | - |
dc.subject | MICROSPHERES | - |
dc.subject | NANOPARTICLES | - |
dc.subject | SENSITIVITY | - |
dc.subject | PERFORMANCE | - |
dc.title | Gas sensing characteristics of p-type Cr2O3 and Co3O4 nanofibers depending on inter-particle connectivity | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Heun | - |
dc.identifier.doi | 10.1016/j.snb.2014.05.081 | - |
dc.identifier.scopusid | 2-s2.0-84902331440 | - |
dc.identifier.wosid | 000339994900035 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.202, pp.263 - 271 | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 202 | - |
dc.citation.startPage | 263 | - |
dc.citation.endPage | 271 | - |
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 | GRAIN-SIZE | - |
dc.subject.keywordPlus | OXIDE NANOSTRUCTURES | - |
dc.subject.keywordPlus | CATALYTIC-OXIDATION | - |
dc.subject.keywordPlus | SENSORS | - |
dc.subject.keywordPlus | TOLUENE | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | SENSITIVITY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordAuthor | p-Type oxide semiconductors | - |
dc.subject.keywordAuthor | Gas sensors | - |
dc.subject.keywordAuthor | Connectivity | - |
dc.subject.keywordAuthor | Gas response | - |
dc.subject.keywordAuthor | Nanofibers | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.