Cellulose-derived carbon spheres produced under supercritical ethanol conditions

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dc.authoridTekin, Kubilay/0000-0002-9373-3208
dc.contributor.authorTekin, Kubilay
dc.contributor.authorPileidis, Filoklis D.
dc.contributor.authorAkalin, Mehmet K.
dc.contributor.authorKaragoz, Selhan
dc.date.accessioned2024-09-29T15:51:07Z
dc.date.available2024-09-29T15:51:07Z
dc.date.issued2016
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThis study investigates the production of spherical carbons from cellulose under sub- and supercritical ethanol conditions with and without the addition of a potassium hydroxide (KOH) catalyst. Different temperatures (200 and 280 A degrees C), residence times (0.5, 1, 2, and 4 h), and KOH concentrations (5, 10, and 20 wt% of cellulose) were used for the carbonization process. Carbon spheres could only be obtained under supercritical ethanol conditions (at 280 A degrees C and 9.5 MPa). Supercritical ethanol decreases the oxygen content by a significant amount, thereby increasing the heating value. Morphological studies show that the carbons are essentially spherical of different sizes depending on the operating conditions (such as the presence of a catalyst and time). For the first time, we showed that spherical carbons can be obtained under supercritical ethanol conditions. This is a useful result as, for instance, ethanol can be produced from cellulose, and this opens the possibility for the development of a green and simple procedure to synthesize carbon spheres that may have many different applications including gas separation, catalysis, and energy storage.en_US
dc.identifier.doi10.1007/s10098-015-1014-x
dc.identifier.endpage338en_US
dc.identifier.issn1618-954X
dc.identifier.issn1618-9558
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-84958106290en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage331en_US
dc.identifier.urihttps://doi.org/10.1007/s10098-015-1014-x
dc.identifier.urihttps://hdl.handle.net/20.500.14619/3909
dc.identifier.volume18en_US
dc.identifier.wosWOS:000368186500028en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofClean Technologies and Environmental Policyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCelluloseen_US
dc.subjectSustainable productsen_US
dc.subjectCarbon spheresen_US
dc.subjectSupercritical ethanolen_US
dc.subjectKOH catalysten_US
dc.titleCellulose-derived carbon spheres produced under supercritical ethanol conditionsen_US
dc.typeArticleen_US

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