Operando synchronous DRIFTS/MS/XAS as a powerful tool for guiding the design of Pd catalysts for the selective oxidation of alcohols

[Display omitted] ► Multi-dimensional, operando study of dynamic catalyst restructuring during alcohol oxidation. ► Palladium oxidation state responds to composition and temperature of reaction environment. ► Surface palladium oxide catalyses the aerobic selective oxidation of crotyl alcohol. The se...

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Bibliographic Details
Published in:Catalysis today 2013-04, Vol.205, p.76-85
Main Authors: Parlett, Christopher M.A., Gaskell, Christine V., Naughton, James N., Newton, Mark A., Wilson, Karen, Lee, Adam F.
Format: Article
Language:English
Subjects:
alcohols
aluminum oxide
Catalysis
catalysts
catalytic activity
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Mesoporous supports
nanoparticles
Operando
oxidation
oxygen
Palladium
Porous materials
Selective oxidation
silica
temperature
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
XAS
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Summary:[Display omitted] ► Multi-dimensional, operando study of dynamic catalyst restructuring during alcohol oxidation. ► Palladium oxidation state responds to composition and temperature of reaction environment. ► Surface palladium oxide catalyses the aerobic selective oxidation of crotyl alcohol. The selective aerobic oxidation of crotyl alcohol to crotonaldehyde was investigated by time-resolved synchronous DRIFTS/MS/XAS over silica and alumina supported Pd nanoparticles. Alcohol and oxygen reactant feeds were cycled through the catalyst bed while dynamic measurements of the palladium oxidation state, molecular adsorbates and evolved product distribution were made simultaneously on a sub-second timescale. Highly dispersed palladium nanoparticles remained in a partially oxidised state
ISSN:0920-5861
1873-4308
DOI:10.1016/j.cattod.2012.08.022