Dimethyl carbonate synthesis from carbon dioxide using ceria–zirconia catalysts prepared using a templating method: characterization, parametric optimization and chemical equilibrium modeling

dc.bibliographicCitation.firstPage110235eng
dc.bibliographicCitation.issue111eng
dc.bibliographicCitation.journalTitleRSC Advances : an international journal to further the chemical scienceseng
dc.bibliographicCitation.lastPage110246eng
dc.bibliographicCitation.volume6eng
dc.contributor.authorKumar, Praveen
dc.contributor.authorWith, Patrick
dc.contributor.authorSrivastava, Vimal Chandra
dc.contributor.authorShukla, Kartikeya
dc.contributor.authorGläser, Roger
dc.contributor.authorMishra, Indra Mani
dc.date.accessioned2022-05-10T07:33:30Z
dc.date.available2022-05-10T07:33:30Z
dc.date.issued2016
dc.description.abstractIn this paper, a series of CexZr1−xO2 solid solution spheres were synthesized by exo- and endo-templating methods and tested for dimethyl carbonate (DMC) synthesis using direct conversion of CO2. The synthesized catalysts were characterized by X-ray diffraction (XRD), N2-physisorption, scanning electron microscopy (SEM), and CO2/NH3-temperature-programmed desorption (TPD). Formation of CexZr1−xO2 solid solutions with tetragonal and cubic crystal structures depending on cerium/zirconium compositions was confirmed by XRD analysis. The specific surface area of the mixed oxide decreased and the average pore diameter increased with an increase in the ceria content, with the exception of the mixed oxides with x = 0.4–0.5 i.e. Ce0.4Zr0.6O2 and Ce0.5Zr0.5O2. The basic and acidic site density of the synthesized catalysts was in the order: ZrO2 < CeO2 < Ce0.5Zr0.5O2, and the basic and acidic site density per unit area followed the same order. The best Ce0.5Zr0.5O2 catalyst was further used for the optimization of reaction conditions such as reaction time, reaction temperature, catalyst dose and reusability for DMC synthesis. Furthermore, study of chemical equilibrium modeling was done using the Peng–Robinson–Stryjek–Vera equation of state (PRSV-EoS) along with the van der Waals one-fluid reaction condition so as to calculate change of Gibbs free energy (ΔG°) and heat of reaction (ΔH°).eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/8909
dc.identifier.urihttps://doi.org/10.34657/7947
dc.language.isoengeng
dc.publisherLondon : RSC Publishingeng
dc.relation.doihttps://doi.org/10.1039/c6ra22643d
dc.relation.essn2046-2069
dc.rights.licenseCC BY 3.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/eng
dc.subject.ddc540eng
dc.subject.otherCarboneng
dc.subject.otherCatalystseng
dc.subject.otherEquations of stateeng
dc.subject.otherFree energyeng
dc.subject.otherGibbs free energyeng
dc.subject.otherReusabilityeng
dc.subject.otherScanning electron microscopyeng
dc.subject.otherSolid solutionseng
dc.subject.otherTemperature programmed desorptioneng
dc.subject.otherVan der Waals forceseng
dc.subject.otherX ray diffractioneng
dc.subject.otherZirconiaeng
dc.subject.otherCeria-zirconia catalystseng
dc.subject.otherChemical equilibrium modelingeng
dc.subject.otherCubic crystal structureseng
dc.subject.otherDimethyl carbonateeng
dc.subject.otherDimethyl carbonate synthesiseng
dc.subject.otherParametric optimizationeng
dc.subject.otherReaction conditionseng
dc.subject.otherReaction temperatureeng
dc.subject.otherCarbon dioxideeng
dc.titleDimethyl carbonate synthesis from carbon dioxide using ceria–zirconia catalysts prepared using a templating method: characterization, parametric optimization and chemical equilibrium modelingeng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccesseng
wgl.contributorIOMeng
wgl.subjectChemieeng
wgl.typeZeitschriftenartikeleng
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