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Water-Promoted Hydrocarbon Activation Catalyzed by Binuclear Gallium Sites in ZSM-5 Zeolite^†

Emiel J. M. Hensen Dr.

[email protected]

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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Evgeny A. Pidko,

Evgeny A. Pidko

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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Neelesh Rane,

Neelesh Rane

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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Rutger A. van Santen Prof.,

Rutger A. van Santen Prof.

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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Emiel J. M. Hensen Dr.,

Emiel J. M. Hensen Dr.

[email protected]

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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Evgeny A. Pidko,

Evgeny A. Pidko

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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Neelesh Rane,

Neelesh Rane

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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Rutger A. van Santen Prof.,

Rutger A. van Santen Prof.

Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands, Fax: (+31) 40-245-5054 http://www.catalysis.nl

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First published: 17 September 2007

https://doi.org/10.1002/ange.200702463

Citations: 6

^†

The authors thank the European Union for financial support from the IDECAT framework and Dr. Pieter Magusin for NMR measurements. NWO-NCF and NWO-DUBBLE are acknowledged for computing and XAS facilities, respectively. E.H. thanks the Technology Foundation STW for financial support.

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Graphical Abstract

Dampf aktiviert: Die Propandehydrierung über Ga/ZSM-5 wird durch die Zugabe von Dampf zum Kohlenwasserstoffstrom erheblich verbessert, was auf eine höhere Stationärkonzentration hydroxylierter Intermediate zurückzuführen ist. Quantenchemische Rechnungen sprechen dafür, dass die H₂-Rekombination, die zum Starten des Katalysezyklus notwendig ist, an zweikernigen, sauerstoffverbrückten Ga³⁺-Komplexen besser verläuft als an GaO⁺-Ionen (siehe Bild).

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Volume119, Issue38

September 24, 2007

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Water-Promoted Hydrocarbon Activation Catalyzed by Binuclear Gallium Sites in ZSM-5 Zeolite^†

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Water-Promoted Hydrocarbon Activation Catalyzed by Binuclear Gallium Sites in ZSM-5 Zeolite†

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Water-Promoted Hydrocarbon Activation Catalyzed by Binuclear Gallium Sites in ZSM-5 Zeolite^†