Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6751
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dc.contributor.authorAkın, Okan-
dc.contributor.authorYüksel, Aslı-
dc.date.accessioned2018-01-25T13:14:57Z-
dc.date.available2018-01-25T13:14:57Z-
dc.date.issued2017-11-
dc.identifier.citationAkın, O., and Yüksel, A. (2017). Novel hybrid process for the conversion of microcrystalline cellulose to value-added chemicals: part 2: effect of constant voltage on product selectivity. Cellulose, 24(11), 4729-4741. doi:10.1007/s10570-017-1457-9en_US
dc.identifier.issn0969-0239-
dc.identifier.urihttp://doi.org/10.1007/s10570-017-1457-9-
dc.identifier.urihttp://hdl.handle.net/11147/6751-
dc.description.abstractIn this study, electrochemical degradation of microcrystalline cellulose (MCC) under hot-compressed water was investigated via application of constant voltage on reaction medium. Constant voltage ranges from 2.5 to 8.0 V was applied between anode (Titanium) and cathode (reactor wall). As an electrolyte and proton source 5–25 mM of H2SO4 was used. Reactions were carried out in a specially designed batch reactor (450 mL) made of T316 for 240 min at temperature of 200 °C.MCC decomposition products such as glucose, fructose, furfural, 5-HMF and levulinic acid were detected and quantified by High Performance Liquid Chromatography (HPLC). In the absence of electrolyte, applied voltage (2.5 and 4.0 V) decreased the total organic carbon (TOC) yield, in contrast at 8.0 V, TOC yield increased to 13%. Application of 8.0 V in hydrothermal conditions alter MCC decomposition pathway selectively to furfural (15%). Addition of electrolyte (5 mM, H2SO4) and application of 2.5 V potential increased TOC (54%) and changed the decomposition pathway in favor of 5-HMF (30%) and levulinic acid (21%). The structural changes in solid residues of electrochemically reacted MCC was analyzed by Fourier Transform Infrared Spectroscopy (FTIR) and found that MCC particles functionalized by carboxylic acid and sulfonated groups by the application of constant voltage to reaction medium. In the presence of electrolyte, under certain voltage (2.5 V), functionalization of solid particles became more obvious in FTIR spectrum results. Therefore, change in the selectivity values of degradation products were conducted with the functionalization of MCC particles due to applied voltage under sub-critical conditions.en_US
dc.description.sponsorshipMarie Curie Career Integration Grants (FP7-PEOPLE-CIG) PCIG11-GA-2012-321741en_US
dc.language.isoenen_US
dc.publisherSpringer Verlagen_US
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/321741en_US
dc.relation.ispartofCelluloseen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectLevulinic aciden_US
dc.subjectCelluloseen_US
dc.subject5-HMFen_US
dc.subjectElectrochemistryen_US
dc.subjectSub-critical wateren_US
dc.subjectElectrolytesen_US
dc.titleNovel hybrid process for the conversion of microcrystalline cellulose to value-added chemicals: part 2: effect of constant voltage on product selectivityen_US
dc.typeArticleen_US
dc.authoridTR52236en_US
dc.institutionauthorAkın, Okan-
dc.institutionauthorYüksel, Aslı-
dc.departmentIzmir Institute of Technology. Chemical Engineeringen_US
dc.identifier.volume24en_US
dc.identifier.issue11en_US
dc.identifier.startpage4729en_US
dc.identifier.endpage4741en_US
dc.identifier.wosWOS:000413772600013
dc.identifier.scopusSCOPUS:2-s2.0-85027836645
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1007/s10570-017-1457-9-
dc.relation.doi10.1007/s10570-017-1457-9en_US
dc.coverage.doi10.1007/s10570-017-1457-9en_US
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.fulltextWith Fulltext-
crisitem.author.deptDepartment of Chemical Engineering-
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
OpenAIRE Collection / OpenAIRE Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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