Evaluation of Stability and Catalytic Activity in Supercritical Water of Zinc Oxide Samples Prepared by the Sol–Gel Method

Basit Öğe Kaydı
dc.authorid0000-0002-0806-4549tr
dc.contributor.authorAteş, Ayten
dc.contributor.authorHatipoğlu, Hakan
dc.date.accessioned2022-05-11T11:36:18Z
dc.date.available2022-05-11T11:36:18Z
dc.date.issuedDecember 2021tr
dc.departmentMühendislik Fakültesitr
dc.description.abstractNano-and micro-sized ZnO samples were synthesized by the sol–gel method. Physical and thermal stability of ZnO samples were tested in supercritical water (SCW) and supercritical water gasification (SCWG) of formaldehyde. ZnO calcined at 350 °C (ZnO-350) has spherical particles with an average diameter of 150 nm. After SCW and SCWG treatments, the particle size of ZnO-350 increased and its roughness decreased as a result of agglomeration. Increasing the calcination temperature of ZnO from 350 to 900 °C increased crystallinity and the estimated crystal size of ZnO. The particles of ZnO calcined at 900 °C converted to hexagonal particles from spherical particles by the dissolution of coke precursors in SCW. Compared with the non-catalytic gasification of formaldehyde, the presence of ZnO increased the conversion of formaldehyde and hydrogen formation. The increasing calcination temperatures of ZnO enhanced hydrogen formation, which might be due to the formation of oxygen vacancies on the ZnO1-x.tr
dc.description.sponsorshipThe authors acknowledge the financial support achieved from The Scientific and Technological Research Council of Turkey (TUBITAK) (213M398) and Sivas Cumhuriyet University Research Scientific Funding (M-742).tr
dc.identifier.citationReceived: 20 May 2021 / Accepted: 2 July 2021 / Published online: 8 July 2021 © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2021tr
dc.identifier.doi10.1007/s10904-021-02066-2en_US
dc.identifier.endpage4593tr
dc.identifier.issue1tr
dc.identifier.scopus2-s2.0-85109701707en_US
dc.identifier.scopusqualityN/A
dc.identifier.startpage4581tr
dc.identifier.urihttps://link.springer.com/article/10.1007/s10904-021-02066-2
dc.identifier.urihttps://hdl.handle.net/20.500.12418/12804
dc.identifier.volume31tr
dc.identifier.wosWOS:000670864000001en_US
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringertr
dc.relation.ispartofDergien_US
dc.relation.publicationcategoryUluslararası Hakemli Dergide Makale - Kurum Öğretim Elemanıtr
dc.relation.tubitak213M398
dc.rightsinfo:eu-repo/semantics/closedAccesstr
dc.subjectZnO; · Sol–gel;· Gasifcation; · SCW; · Formaldehydetr
dc.titleEvaluation of Stability and Catalytic Activity in Supercritical Water of Zinc Oxide Samples Prepared by the Sol–Gel Methoden_US
dc.typeArticleen_US

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