BROWSE

Related Scientist

Researcher

나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
more info

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.languageENG-
dc.publisherAMER CHEMICAL SOC-
dc.titleNonstoichiometric Co-rich ZnCo2O4 Hollow Nanospheres for High Performance Formaldehyde Detection at ppb Levels-
dc.typeArticle-
dc.type.rimsA-
dc.identifier.wosid000370211400040-
dc.identifier.scopusid2-s2.0-84958211431-
dc.description.wostc26-
dc.date.tcdate2018-10-01-
dc.date.scptcdate2018-10-01-
dc.subject.keywordZnCo2O4-
dc.subject.keywordhollow nanosphere-
dc.subject.keywordformaldehyde sensing-
dc.subject.keywordppb level-
dc.subject.keywordselectivity-
dc.contributor.affiliatedAuthorJinmo Kim-
dc.identifier.bibliographicCitationACS APPLIED MATERIALS & INTERFACES, v.8, no.5, pp.3233 - 3240-
dc.description.scptc28-
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
ACS Appl. Mater. Interfaces 2016, 8, 3233−3240.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse