Design of supersensitive and selective ZnO-nanofiber-based sensors for H₂ gas sensing by electron-beam irradiation
DC Field | Value | Language |
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dc.contributor.author | Kim, Jae-Hun | - |
dc.contributor.author | Mirzaei, Ali | - |
dc.contributor.author | Kim, Hyoun Woo | - |
dc.contributor.author | Wu, Ping | - |
dc.contributor.author | Kim, Sang Sub | - |
dc.date.accessioned | 2021-08-02T11:26:48Z | - |
dc.date.available | 2021-08-02T11:26:48Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2019-08 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/13274 | - |
dc.description.abstract | In the present study, ZnO nanofibers (NFs) were synthesized by the simple electrospinning technique for gas sensing studies. ZnO NFs were irradiated with a high-energy (1 MeV) electron beam (e-beam) at different doses (50, 100, and 150 kGy) to study the effect of the e-beam dose on the sensing performance of the synthesized ZnO NFs. H-2 sensing studies showed that the sensing properties of the unirradiated and 50 kGy-irradiated sensors were similar, which indicates that this e-beam dose was insufficient. However, the sensing characteristics improved with an increase in the irradiation dose to 100 and 150 kGy. The response of the optimal sensor (150-kGy-irradiated) to 10 ppm H-2 was much higher than that to other (interfering) gases (e.g., C2H5OH, C6H6, C7H8, and CO). The observed high gas response of the 150 kGy-irradiated sensor was attributed to its high surface area resulting from the one-dimensional nature of the ZnO NFs, the grain size of ZnO, and the formation of surface defects by e-beam irradiation. The high selectivity of the ZnO NFs toward H-2 gas was related mainly to the metallization of ZnO and the concentration gradient of carfbon across the NF surfaces. Overall, the findings demonstrate the effectiveness of high-energy irradiation in enhancing the sensing performance of ZnO NFs. We believe that this approach can be extended to other metal oxides for the enhancement of sensing performance. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Design of supersensitive and selective ZnO-nanofiber-based sensors for H₂ gas sensing by electron-beam irradiation | - |
dc.title.alternative | Design of supersensitive and selective ZnO-nanofiber-based sensors for H-2 gas sensing by electron-beam irradiation | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hyoun Woo | - |
dc.identifier.doi | 10.1016/j.snb.2019.04.113 | - |
dc.identifier.scopusid | 2-s2.0-85065438439 | - |
dc.identifier.wosid | 000469021800026 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.293, pp.210 - 223 | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 293 | - |
dc.citation.startPage | 210 | - |
dc.citation.endPage | 223 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
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 | HYDROGEN SENSOR | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | POINT-DEFECTS | - |
dc.subject.keywordPlus | PD | - |
dc.subject.keywordPlus | IMPROVEMENT | - |
dc.subject.keywordPlus | NO2 | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | SENSITIVITY | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordAuthor | Electron-beam irradiation | - |
dc.subject.keywordAuthor | Nanofibers | - |
dc.subject.keywordAuthor | ZnO | - |
dc.subject.keywordAuthor | Gas sensor | - |
dc.subject.keywordAuthor | Sensing mechanism | - |
dc.subject.keywordAuthor | H-2 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S092540051930646X?via%3Dihub | - |
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