Attachment of Metal Nanoparticles to SnO2 Nanowires for Enhancement of Gas Sensing Properties
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyoun Woo | - |
dc.contributor.author | Kwon, Yong Jung | - |
dc.contributor.author | Cho, Hong Yeon | - |
dc.contributor.author | Na, Han Gil | - |
dc.date.accessioned | 2022-07-16T02:03:06Z | - |
dc.date.available | 2022-07-16T02:03:06Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2014-11 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158713 | - |
dc.description.abstract | We fabricated SnO2/cobalt (Co) core shell nanowires by means of a two-step process, for their application as chemical sensors. For Co-functionalization, we synthesized SnO2-Co core shell nanowires by the sputtering deposition of Co layers on the surface of networked SnO2 nanowires, subsequently transforming the continuous Co-shell layers into crystalline islands by thermal heating. While scanning electron microscopy (SEM) images of annealed core shell nanowires exhibited a rough surface, transmission electron microscopy (TEM) images revealed that the roughness is related to the agglomeration of the sputtered Co layer. The X-ray diffraction (XRD) pattern and lattice-resolved TEM images coincidentally indicated that the agglomerated particles are comprised of a hexagonal Co phase. The NO2 sensing test revealed that the sensor response was enhanced by decoration with Co nanoparticles. In addition, both response and recovery times tended to decrease as a result of the Co-functionalization. This indicates that the Co-functionalized SnO2 nanowire sensors can be used to sense gases at very low concentrations. We discussed possible mechanisms for enhancing sensor properties by Co-functionalization. The NO2 gas sensing test demonstrated the ability of the Co-functionalization to provide higher sensitivity, shorter response time, and shorter recovery time than would bare SnO2 nanowires. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.title | Attachment of Metal Nanoparticles to SnO2 Nanowires for Enhancement of Gas Sensing Properties | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hyoun Woo | - |
dc.identifier.doi | 10.1166/jnn.2014.9902 | - |
dc.identifier.scopusid | 2-s2.0-84908426285 | - |
dc.identifier.wosid | 000344126500024 | - |
dc.identifier.bibliographicCitation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.11, pp.8242 - 8247 | - |
dc.relation.isPartOf | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.title | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.volume | 14 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 8242 | - |
dc.citation.endPage | 8247 | - |
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 | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | LONG-TERM PERFORMANCE | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | IN2O3 NANOWIRES | - |
dc.subject.keywordPlus | LOW-TEMPERATURE | - |
dc.subject.keywordPlus | SENSOR | - |
dc.subject.keywordPlus | CO | - |
dc.subject.keywordPlus | SENSITIVITY | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | TIN | - |
dc.subject.keywordAuthor | SnO2 | - |
dc.subject.keywordAuthor | Nanowires | - |
dc.subject.keywordAuthor | Co | - |
dc.subject.keywordAuthor | Sensors | - |
dc.subject.keywordAuthor | NO2 | - |
dc.identifier.url | https://www.ingentaconnect.com/content/asp/jnn/2014/00000014/00000011/art00024 | - |
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