High surface area carbonous components from emulsion derived SiOC and their gas sensing behavior

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dc.contributor.authorVakıfahmetoğlu, Cekdar
dc.contributor.authorBuldu, Merve
dc.contributor.authorKarakuscu, Aylin
dc.contributor.authorPonzoni, Andrea
dc.contributor.authorAssefa, Dawit
dc.contributor.authorSoraru, Gian Domenico
dc.date.accessioned2021-05-15T12:37:34Z
dc.date.available2021-05-15T12:37:34Z
dc.date.issued2015
dc.departmentMühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliğien_US
dc.descriptionPonzoni, Andrea/0000-0001-9955-5118; Vakifahmetoglu, Cekdar/0000-0003-1222-4362; Buldu, Merve/0000-0002-0116-2082
dc.description.abstractA commercially available liquid polysiloxane polymer was emulsified via stirring in the presence of water and surfactant. After curing, porous microbead/capsule thermosets were obtained. The samples kept their shape upon pyrolysis and resulted in SiOC ceramics which were etched by hydrofluoric acid at room temperature. The specific surface area of the components increased considerably reaching to 310 m(2)/g when etching process was conducted. It was shown that the samples had hierarchical porosity including micro-meso and macro porosity (5-10 micron range). The etching process affected the conductivity and the room temperature NO2 sensing capability of the SiOC samples. It is shown that porous SiOC and carboneous materials produced via hydrofluoric acid etching, can be used to detect NO2 (5 ppm) at room temperature (for the etched sample) with an easy-to-read conductance (mS range) as well as fast response kinetics (few minutes) and a complete signal recovery. (C) 2015 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipTUBITAK (Scientific and Technological Research Council of Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [CAYDAG-113Y533]en_US
dc.description.sponsorshipC.V. and M.B. gratefully acknowledge the support of TUBITAK (The Scientific and Technological Research Council of Turkey) under the project Grant No: CAYDAG-113Y533.en_US
dc.identifier.doi10.1016/j.jeurceramsoc.2015.08.030
dc.identifier.endpage4452en_US
dc.identifier.issn0955-2219
dc.identifier.issn1873-619X
dc.identifier.issue16en_US
dc.identifier.scopus2-s2.0-84943819386
dc.identifier.scopusqualityQ1
dc.identifier.startpage4447en_US
dc.identifier.urihttps://doi.org/10.1016/j.jeurceramsoc.2015.08.030
dc.identifier.urihttps://hdl.handle.net/20.500.12939/554
dc.identifier.volume35en_US
dc.identifier.wosWOS:000364257600010
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorVakıfahmetoğlu, Cekdar
dc.language.isoen
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofJournal of the European Ceramic Society
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPreceramic Polymersen_US
dc.subjectPorous Ceramic Beadsen_US
dc.subjectHigh Surface Areaen_US
dc.subjectGas Sensingen_US
dc.titleHigh surface area carbonous components from emulsion derived SiOC and their gas sensing behavior
dc.typeArticle

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