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나노물질및화학반응연구단
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Nonstoichiometric Co-rich ZnCo2O4 Hollow Nanospheres for High Performance Formaldehyde Detection at ppb Levels

DC Field Value Language
dc.contributor.authorPark, HJ-
dc.contributor.authorJinmo Kim-
dc.contributor.authorChoi, NJ-
dc.contributor.authorHyunjoon Song-
dc.contributor.authorLee, DS-
dc.date.available2017-01-20T08:32:28Z-
dc.date.created2016-03-17-
dc.date.issued2016-02-
dc.identifier.issn1944-8244-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/3310-
dc.description.abstractSince metal oxide semiconductors were investigated as chemiresistors, rapid advances have been reported in this, field. However, better performance metrics are still required, such as higher sensitivity and selectivity levels for practical applications. To improve the sensing performance, we discuss an optimal composition of the active sensing material, nonstoichiometric Co-rich ZnCo2O4, prepared by the partial substitution of Co2+ into Zn2+ in Co3O4 without altering a hollow sphere morphology. Remarkably) this Co-rich ZnCo2O4 phase achieved detection limits for formaldehyde as low as 13 ppb in experimental measurements and 2 ppb in theory, which were the lowest values ever reported from, actual measurements at a working temperature of 225 degrees C. It was also unprecedented that the selectivity for formaldehyde was greatly enhanced with respect to the selectivity levels against other volatile organic compounds (VOCs). These excellent sensing performances are due to the optimal composition of the Co-rich ZriCo(2)O(4) material with a proper hole concentration and well-organized conductive network. © 2016 American Chemical Society-
dc.description.uri1-
dc.language영어-
dc.publisherAMER CHEMICAL SOC-
dc.subjectZnCo2O4-
dc.subjecthollow nanosphere-
dc.subjectformaldehyde sensing-
dc.subjectppb level-
dc.subjectselectivity-
dc.titleNonstoichiometric Co-rich ZnCo2O4 Hollow Nanospheres for High Performance Formaldehyde Detection at ppb Levels-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000370211400040-
dc.identifier.scopusid2-s2.0-84958211431-
dc.identifier.rimsid22598-
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorJinmo Kim-
dc.contributor.affiliatedAuthorHyunjoon Song-
dc.identifier.doi10.1021/acsami.5b10862-
dc.identifier.bibliographicCitationACS APPLIED MATERIALS & INTERFACES, v.8, no.5, pp.3233 - 3240-
dc.citation.titleACS APPLIED MATERIALS & INTERFACES-
dc.citation.volume8-
dc.citation.number5-
dc.citation.startPage3233-
dc.citation.endPage3240-
dc.date.scptcdate2018-10-01-
dc.description.wostc26-
dc.description.scptc28-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusSEMICONDUCTOR GAS SENSORS-
dc.subject.keywordPlusFILM-
dc.subject.keywordPlusOXIDATION-
dc.subject.keywordPlusCATALYSTS-
dc.subject.keywordPlusSPHERES-
dc.subject.keywordAuthorZnCo2O4-
dc.subject.keywordAuthorhollow nanosphere-
dc.subject.keywordAuthorformaldehyde sensing-
dc.subject.keywordAuthorppb level-
dc.subject.keywordAuthorselectivity-
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
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ACS Appl. Mater. Interfaces 2016, 8, 3233−3240.pdfDownload

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