Tracing Active Sites in Supported Ni Catalysts during Butene Oligomerization by Operando Spectroscopy under Pressure

dc.bibliographicCitation.firstPage8224eng
dc.bibliographicCitation.issue12eng
dc.bibliographicCitation.lastPage8228eng
dc.bibliographicCitation.volume6eng
dc.contributor.authorRabeah, Jabor
dc.contributor.authorRadnik, Jörg
dc.contributor.authorBriois, Valérie
dc.contributor.authorMaschmeyer, Dietrich
dc.contributor.authorStochniol, Guido
dc.contributor.authorPeitz, Stephan
dc.contributor.authorReeker, Helene
dc.contributor.authorLa Fontaine, Camille
dc.contributor.authorBrückner, Angelika
dc.date.accessioned2022-05-03T08:51:22Z
dc.date.available2022-05-03T08:51:22Z
dc.date.issued2016
dc.description.abstractSupported Ni catalysts have been studied during the dimerization of butenes by operando electron paramagnetic resonance (EPR) and in situ X-ray absorption spectroscopy (XAS) at 353 K and up to 16 bar. Single NiI/NiII shuttles were identified as active sites, whereby the conversion of initial NiI to NiII by oxidative addition of butene is obviously faster than the re-reduction of NiII to NiI by reductive elimination of the C8 product, rendering the equilibrium percentage of NiI small. At p ≤ 2 bar, NiI single sites form inactive Ni0 aggregates, while this is suppressed at higher pressure (∼12 bar). A reaction mechanism is proposed.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/8826
dc.identifier.urihttps://doi.org/10.34657/7864
dc.language.isoengeng
dc.publisherWashington, DC : ACSeng
dc.relation.doihttps://doi.org/10.1021/acscatal.6b02331
dc.relation.essn2155-5435
dc.relation.ispartofseriesACS catalysis 6 (2016), Nr. 12eng
dc.rights.licenseACS AuthorChoiceeng
dc.rights.urihttps://pubs.acs.org/page/policy/authorchoice_termsofuse.htmleng
dc.subjectbutene dimerizationeng
dc.subjectheterogeneous catalysiseng
dc.subjectin situ EXAFS/XANESeng
dc.subjectnickel catalystseng
dc.subjectoperando EPReng
dc.subjectreaction mechanismeng
dc.subject.ddc540eng
dc.titleTracing Active Sites in Supported Ni Catalysts during Butene Oligomerization by Operando Spectroscopy under Pressureeng
dc.typearticleeng
dc.typeTexteng
dcterms.bibliographicCitation.journalTitleACS catalysiseng
tib.accessRightsopenAccesseng
wgl.contributorLIKATeng
wgl.subjectChemieeng
wgl.typeZeitschriftenartikeleng
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