Water‐Promoted Hydrocarbon Activation Catalyzed by Binuclear Gallium Sites in ZSM‐5 Zeolite | Zendy

Hensen Emiel J. M. | Zendy; Pidko Evgeny A. | Zendy; Rane Neelesh | Zendy; van Santen Rutger A. | Zendy

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

Author(s) -

Hensen Emiel J. M.,

Pidko Evgeny A.,

Rane Neelesh,

van Santen Rutger A.

Publication year - 2007

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200702463

Subject(s) - dehydrogenation , catalysis , propane , hydrocarbon , gallium , alkane , zeolite , chemistry , photochemistry , organic chemistry

Steamy alkane activation : Propane dehydrogenation over Ga/ZSM‐5 is substantially improved upon addition of steam to the hydrocarbon feed, which is due to an increase of the steady‐state concentration of hydroxylated reaction intermediates. Quantum‐chemical computations indicate that H 2 recombination, required to initiate the catalytic cycle, is more favorable over binuclear oxygen‐bridged Ga 3+ complexes than over mononuclear GaO + ions (see picture).

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