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dc.contributor.authorDüzenli, Derya
dc.contributor.authorŞeker, Erol
dc.contributor.authorSenkan, Selim
dc.contributor.authorÖnal, Işık
dc.date.accessioned2017-05-29T08:59:18Z
dc.date.available2017-05-29T08:59:18Z
dc.date.issued2012-10
dc.identifier.citationDüzenli, D., Şeker, E., Senkan, S. and Önal, I. (2012). Epoxidation of propene by high-throughput screening method over combinatorially prepared cu catalysts supported on high and low surface area silica. Catalysis Letters, 142(10), 1234-1243. doi:10.1007/s10562-012-0867-4en_US
dc.identifier.issn1011-372X
dc.identifier.urihttp://dx.doi.org/10.1007/s10562-012-0867-4
dc.identifier.urihttp://hdl.handle.net/11147/5628
dc.description.abstractGas phase epoxidation of propene using molecular oxygen was studied by use of a high-throughput testing technique. A large number of catalysts including promoted and un-promoted Cu were synthesized in a much faster combinatorial fashion using a sol-gel method. Metal catalysts supported on high and low surface area silica were tested and ranked in a high-throughput activity and selectivity testing apparatus at different experimental conditions such as reaction temperature and reactant gas ratio. The amount of Cu loading and the addition of alkali promoters such as K and Li resulted in different tendencies in consumption rate for both silica materials. The maximum PO production rate was obtained as 25.82 μmol/g/ cat./min (2.90 % conv. and 20.49 % selectivity) for 3 % Cu-2.25 % K catalyst supported on high surface area silica. There was no noticeable difference in structural and chemical properties of catalysts after modification with K when examined by XRD and TEM; however, the overall activation energy of un-modified catalysts (92 kJ/mol) decreased to 71 kJ/mol for K-modified catalyst. There was negligible difference between the activation energies calculated for PO production (75 vs. 77 kJ/mol).en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relation.isversionof10.1007/s10562-012-0867-4en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectEpoxidationen_US
dc.subjectHigh-throughputen_US
dc.subjectPropeneen_US
dc.subjectSol-Gelen_US
dc.subjectCatalyst supportsen_US
dc.titleEpoxidation of propene by high-throughput screening method over combinatorially prepared cu catalysts supported on high and low surface area silicaen_US
dc.typearticleen_US
dc.contributor.authorIDTR115072en_US
dc.contributor.iztechauthorŞeker, Erol
dc.relation.journalCatalysis Lettersen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume142en_US
dc.identifier.issue10en_US
dc.identifier.startpage1234en_US
dc.identifier.endpage1243en_US
dc.identifier.wosWOS:000309556400011
dc.identifier.scopusSCOPUS:2-s2.0-84868468782


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