Active Ag species in MFI zeolite for direct methane conversion in the light and dark

Active Ag species in MFI zeolite for direct methane conversion in the light and dark Photo-induced methane conversion was examined over Ag-MFI zeolite at room temperature. On the oxidized Ag-MFI zeolite, containing Ag+ exchanged cations, huge amounts of methane were adsorbed, even in the dark, and then converted to mainly ethane upon photo-irradiation without H2 production. It was revealed that Ag n + small clusters were formed at the expense of Ag+ ion during this photoreaction, and probably hydrogen would be stored as H+ on the ion-exchange sites instead of Ag+. On the other hand, the reduced sample containing larger clusters converted methane into alkene even without photo-irradiation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Active Ag species in MFI zeolite for direct methane conversion in the light and dark

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Publisher
Springer Netherlands
Copyright
Copyright © 2003 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856703322601898
Publisher site
See Article on Publisher Site

Abstract

Photo-induced methane conversion was examined over Ag-MFI zeolite at room temperature. On the oxidized Ag-MFI zeolite, containing Ag+ exchanged cations, huge amounts of methane were adsorbed, even in the dark, and then converted to mainly ethane upon photo-irradiation without H2 production. It was revealed that Ag n + small clusters were formed at the expense of Ag+ ion during this photoreaction, and probably hydrogen would be stored as H+ on the ion-exchange sites instead of Ag+. On the other hand, the reduced sample containing larger clusters converted methane into alkene even without photo-irradiation.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jul 8, 2009

References

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