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dc.contributor.authorRai, Rohit Kumar
dc.contributor.authorAwasthi, Mahendra K.
dc.contributor.authorSingh, Vipin K.
dc.contributor.authorBarman, Sudipta Roy
dc.contributor.authorBehrens, Silke
dc.contributor.authorSingh, Sanjay K.
dc.date.accessioned2020-08-23T10:27:27Z
dc.date.available2020-08-23T10:27:27Z
dc.date.issued2020
dc.date.submitted2020-06-08
dc.identifier.citationRai, R. K., Awasthi, M. K., Singh, V. K., Barman, S. R., Behrens, S., & Singh, S. K. (2020). Aqueous phase semihydrogenation of alkynes over Ni–Fe bimetallic catalysts. Catalysis Science & Technology, 10(15), 4968–4980. doi:10.1039/d0cy01153c
dc.identifier.issn2044-4761
dc.identifier.issn2044-4753
dc.identifier.doi10.1039/d0cy01153c
dc.identifier.urihttp://hdl.handle.net/10754/664766
dc.description.abstractBimetallic Ni-Fe catalysts (Ni/Fe, 1 : 1, 1 : 3, and 3 : 1) are synthesized and explored for their catalytic activity in semihydrogenation of internal alkynes using H2 gas in water-ethanol solution. Our findings revealed that over the Ni1Fe3 catalyst a high diastereoselectivity for Z-alkenes with a high conversion for a wide range of internal alkynes can be achieved at moderate reaction temperature (40 °C). Notably, the selectivity for the Z-alkenes is enhanced in the presence of n-butyl amine as an additive. Deuterium labeling experiments evidenced that H2 gas becomes dissociated homolytically over the catalyst surface to hydrogenate alkynes to alkenes. Synthesized catalysts were successfully characterized by HR-TEM, SEM, XPS, EDS, P-XRD and H2-TPD.
dc.description.sponsorshipThis work is financially supported by the Science and Engineering Research Board, New Delhi (EMR/2016/005783) and Council of Scientific and Industrial Research, New Delhi (01(2885)/17/EMR-II) and the Indian Institute of Technology Indore, India. SIC, IIT Indore, UGC-DAE, Indore and IKFT-KIT are acknowledged for the instrumentation facilities. R.K.R. thanks IIT Indore for his research associateship. M.K.A. thanks INSPIRE for senior research fellowship. We would like to acknowledge Martin Hähsler for support with TEM analysis.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://xlink.rsc.org/?DOI=D0CY01153C
dc.rightsArchived with thanks to Catalysis Science and Technology
dc.titleAqueous phase semihydrogenation of alkynes over Ni-Fe bimetallic catalysts
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalCatalysis Science and Technology
dc.rights.embargodate2021-06-22
dc.eprint.versionPost-print
dc.contributor.institutionCatalysis Group, Discipline of Chemistry, Indian Institute of Technology Indore Simrol Indore 453552 Madhya Pradesh Email: sksingh@iiti.ac.in
dc.contributor.institutionUGC-DAE Consortium for Scientific Research Khandwa Road Indore 452001 Madhya Pradesh Email: sksingh@iiti.ac.in
dc.contributor.institutionInstitut für Katalyseforschung und technologie (IKFT), Karlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 D-76344 Eggenstein-Leopoldshafen Germany
dc.identifier.volume10
dc.identifier.issue15
dc.identifier.pages4968-4980
kaust.personRai, Rohit Kumar
dc.date.accepted2020-06-21
dc.identifier.eid2-s2.0-85089388967
refterms.dateFOA2020-08-23T12:58:47Z


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