Operando XAS/Raman/MS monitoring of ethanol steam reforming reaction–regeneration cycles

The recyclability of a coked ethanol steam reforming catalyst (Co/Al 2 O 3 ) is studied over several cycles. Oxidative regeneration burns coke, however some of the cobalt is oxidized. H 2 produced during reforming promotes self-reactivation, restoring catalyst activity. The regeneration leads to the...

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Bibliographic Details
Published in:Catalysis science & technology 2018, Vol.8 (24), p.6297-6301
Main Authors: Passos, Aline Ribeiro, La Fontaine, Camille, Martins, Leandro, Pulcinelli, Sandra Helena, Santilli, Celso Valentim, Briois, Valérie
Format: Article
Language:English
Subjects:
Activation
Aluminum oxide
Catalysis
Catalysts
Chemical Sciences
Cobalt
Ethanol
Kirkendall effect
Recyclability
Reforming
Regeneration
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Summary:The recyclability of a coked ethanol steam reforming catalyst (Co/Al 2 O 3 ) is studied over several cycles. Oxidative regeneration burns coke, however some of the cobalt is oxidized. H 2 produced during reforming promotes self-reactivation, restoring catalyst activity. The regeneration leads to the redispersion of smaller cobalt particles as a result of the Kirkendall effect.
ISSN:2044-4753
2044-4761
DOI:10.1039/C8CY01596A