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dc.contributor.authorKumar, Anurag
dc.contributor.authorSong, Kepeng
dc.contributor.authorLiu, Lingmei
dc.contributor.authorHan, Yu
dc.contributor.authorBhan, Aditya
dc.date.accessioned2018-10-11T06:09:41Z
dc.date.available2018-10-11T06:09:41Z
dc.date.issued2018-10-30
dc.identifier.citationKumar A, Song K, Liu L, Han Y, Bhan A (2018) Absorptive hydrogen scavenging for enhanced aromatics yield during non-oxidative methane dehydroaromatization on Mo/H-ZSM-5 catalysts. Angewandte Chemie International Edition. Available: http://dx.doi.org/10.1002/anie.201809433.
dc.identifier.issn1433-7851
dc.identifier.doi10.1002/anie.201809433
dc.identifier.doi10.1002/ange.201809433
dc.identifier.urihttp://hdl.handle.net/10754/628928
dc.description.abstractThe addition of Zr metal particles to MoCx/ZSM-5 in interpellet mixtures (2:1 weight ratio) resulted in maximum single-pass methane conversion of ~27% for dehydroaromatization at 973 K - in significant excess of the equilibrium prescribed ~10% conversion at these conditions - and a concurrent 1.4 - 5.6 fold increase in aromatic product yields due to circumvention of thermodynamic equilibrium limitations by absorptive hydrogen removal by Zr while retaining the cumulative aromatic product selectivity. The absorptive function of the polyfunctional catalyst formulation can be regenerated by thermal treatment in helium flow at 973 K yielding above equilibrium methane conversion in successive regeneration cycles. Hydrogen uptake experiments demonstrate formation of bulk ZrH₁.₇₅ on hydrogen absorption by zirconium at 973 K. Cooperation between absorption and catalytic centers distinct in location and function enables circumvention of persistent thermodynamic challenges in non-oxidative methane dehydrogenation.
dc.description.sponsorshipWe acknowledge financial support from KAUST (OSR Ref. 3325) and Office of Basic Energy Sciences, U.S. Department of Energy (Award DE-SC0019028) and thank Dr. Seema Thakral for XRD measurements as part of Characterization Facility, University of Minnesota, which receives partial support from NSF through MRSEC program.
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201809433
dc.rightsArchived with thanks to Angewandte Chemie International Edition
dc.subjectHeterogeneous Catalysis Molybdenum Carbide Methane Dehydroaromatization Polyfunctional Catalysis Metal Additive
dc.titleAbsorptive hydrogen scavenging for enhanced aromatics yield during non-oxidative methane dehydroaromatization on Mo/H-ZSM-5 catalysts
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Science Program
dc.contributor.departmentNanostructured Functional Materials (NFM) laboratory
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAngewandte Chemie International Edition
dc.eprint.versionPost-print
dc.contributor.institutionUniversity of Minnesota; Chemical Engineering and Materials Science; 421 Washington Ave SE 55455 Minneapolis UNITED STATES
kaust.personSong, Kepeng
kaust.personLiu, Lingmei
kaust.personHan, Yu
kaust.grant.numberOSR Ref. 3325
refterms.dateFOA2018-10-11T06:34:11Z
dc.date.published-online2018-10-30
dc.date.published-print2018-11-19


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