Conversion of γ-Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM-5 Catalysts : Influence of Ni0/Ni2+ Heterojunctions on Activity and Product Selectivity

dc.bibliographicCitation.firstPage1341eng
dc.bibliographicCitation.issue5eng
dc.bibliographicCitation.lastPage1349eng
dc.bibliographicCitation.volume12eng
dc.contributor.authorVelisoju, Vijay Kumar
dc.contributor.authorJampaiah, Deshetti
dc.contributor.authorGutta, Naresh
dc.contributor.authorBentrup, Ursula
dc.contributor.authorBrückner, Angelika
dc.contributor.authorBhargava, Suresh K.
dc.contributor.authorAkula, Venugopal
dc.date.accessioned2021-09-06T07:39:16Z
dc.date.available2021-09-06T07:39:16Z
dc.date.issued2019
dc.description.abstractPromoter (Cr, Mo and W) modified Ni/ZSM-5 catalysts were explored in the vapor phase conversion of γ-valerolactone (GVL) to ethyl valerate (EV; gasoline blender) at atmospheric pressure. Among the three different promoters (Cr, Mo and W) tested the Mo-modified catalyst was found to be the best candidate. In addition, this catalyst was found to be stable up to 50 h reaction time with an insignificant decrease in activity. The good catalytic performance is related to an optimal ratio of acid and hydrogenation functions provided by Ni2+ and Ni0, respectively. In situ FTIR spectroscopic studies revealed a strong adsorption of GVL on all catalysts which quickly reacts with dosed ethanol by formation of EV, most pronounced on the Mo-modified catalyst, while VA was identified as side product. These findings suggest the preferred GVL ring opening by cracking the C−O bond on the methyl side of the GVL molecule on this type of catalysts leading to pentenoic acid as intermediate, which is quickly hydrogenated and esterified. © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/6708
dc.identifier.urihttps://doi.org/10.34657/5755
dc.language.isoengeng
dc.publisherWeinheim : Wiley-VCH Verlageng
dc.relation.doihttps://doi.org/10.1002/cctc.201901966
dc.relation.essn1867-3899
dc.relation.ispartofseriesChemCatChem 12 (2020), Nr. 5eng
dc.relation.issn1867-3880
dc.rights.licenseCC BY-NC-ND 4.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/eng
dc.subjectEthyl Valerateeng
dc.subjectheterogeneous catalysiseng
dc.subjectin situ FTIReng
dc.subjectpromoted Ni/H-ZSM-5eng
dc.subjectγ-Valerolactoneger
dc.subject.ddc540eng
dc.titleConversion of γ-Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM-5 Catalysts : Influence of Ni0/Ni2+ Heterojunctions on Activity and Product Selectivityeng
dc.typearticleeng
dc.typeTexteng
dcterms.bibliographicCitation.journalTitleChemCatChemeng
tib.accessRightsopenAccesseng
wgl.contributorLIKATeng
wgl.subjectChemieeng
wgl.typeZeitschriftenartikeleng
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