Print Email Facebook Twitter Relevance of the Mo-precursor state in H-ZSM-5 for methane dehydroaromatization Title Relevance of the Mo-precursor state in H-ZSM-5 for methane dehydroaromatization Author Vollmer, I. (TU Delft ChemE/Catalysis Engineering) Li, G. (TU Delft ChemE/Catalysis Engineering) Yarulina, I. (TU Delft ChemE/Catalysis Engineering; King Abdullah University of Science and Technology) Kosinov, N. (Eindhoven University of Technology) Hensen, Emiel J. (Eindhoven University of Technology) Houben, Klaartje (Universiteit Utrecht) Mance, Deni (Universiteit Utrecht) Baldus, Marc (Universiteit Utrecht) Gascon, Jorge (TU Delft ChemE/Catalysis Engineering; King Abdullah University of Science and Technology) Kapteijn, F. (TU Delft ChemE/Catalysis Engineering) Date 2018-01-01 Abstract Although the local geometry of Mo in Mo/HZSM-5 has been characterized before, we present a systematic way to manipulate the configuration of Mo and link it to its catalytic properties. The location and geometry of cationic Mo-complexes, the precursor of the active metal site for methane dehydroaromatization, are altered by directing the way they anchor to the framework of the zeolite. The feature used to direct the anchoring of Mo is the location of Al in the zeolite framework. According to DFT calculations, the local geometry of Mo should change, while UV-vis and pyridine FTIR spectroscopy indicated differences in the dispersion of Mo. Both aspects, however, did not influence the catalytic behavior of Mo/HZSM-5, indicating that as long as enough isolated Mo species are present inside the pores of the zeolite, the catalytic behavior is unaffected. This paves the way to better understand how the Mo oxo precursor transforms into the active phase under the reaction conditions. To reference this document use: http://resolver.tudelft.nl/uuid:c1a410f8-dad5-408a-8ad1-ec35f673d59d DOI https://doi.org/10.1039/c7cy01789h Embargo date 2019-01-01 ISSN 2044-4753 Source Catalysis Science & Technology, 8 (3), 916-922 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2018 I. Vollmer, G. Li, I. Yarulina, N. Kosinov, Emiel J. Hensen, Klaartje Houben, Deni Mance, Marc Baldus, Jorge Gascon, F. Kapteijn Files PDF Vollmer_et_al_.pdf 1.2 MB Close viewer /islandora/object/uuid:c1a410f8-dad5-408a-8ad1-ec35f673d59d/datastream/OBJ/view