Matches in SemOpenAlex for { <https://semopenalex.org/work/W4238280116> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W4238280116 endingPage "251" @default.
- W4238280116 startingPage "244" @default.
- W4238280116 abstract "The mechanism of alcohol oxidation was investigated using the conversion of cinnamyl alcohol (1) over Pd-based catalysts as a sensitive test reaction. Studies in a slurry reactor revealed that dehydrogenation and oxidative dehydrogenation of 1 follow the same reaction pathways independent of the presence or absence of oxygen and reaction conditions. Hydrogenation and hydrogenolysis side reactions indicated the presence of hydrogen on the metal surface during reactions. Catalyst deactivation in Ar is attributed to decarbonylation reactions and site blocking by CO. Introduction of molecular oxygen induced a dramatic enhancement of alcohol conversion rate by a factor of up to 285 due to oxidative removal of CO. Strong adsorption of CO on Pd/Al2O3 and its rapid removal by oxygen were corroborated by in situ ATR-IR spectroscopy. All these observations conform to a model according to which oxidation of 1 follows the classical dehydrogenation mechanism, and the key role of oxygen is the continuous oxidative removal of CO and other degradation products from the active sites. This oxidative cleaning of the metal surface allows a high rate of alcohol dehydrogenation even when the oxidation of the co-product hydrogen is slow and incomplete. It is likely that the observed effects are not limited to the oxidation of 1 on Pd, and regeneration of the active sites by oxygen generally plays an important role during aerobic oxidation of alcohols on platinum metals." @default.
- W4238280116 created "2022-05-12" @default.
- W4238280116 creator A5066617185 @default.
- W4238280116 date "2002-10-01" @default.
- W4238280116 modified "2023-09-29" @default.
- W4238280116 title "On the Role of Oxygen in the Liquid-Phase Aerobic Oxidation of Alcohols on Palladium" @default.
- W4238280116 doi "https://doi.org/10.1016/s0021-9517(02)93723-1" @default.
- W4238280116 hasPublicationYear "2002" @default.
- W4238280116 type Work @default.
- W4238280116 citedByCount "106" @default.
- W4238280116 countsByYear W42382801162012 @default.
- W4238280116 countsByYear W42382801162013 @default.
- W4238280116 countsByYear W42382801162014 @default.
- W4238280116 countsByYear W42382801162016 @default.
- W4238280116 countsByYear W42382801162017 @default.
- W4238280116 countsByYear W42382801162018 @default.
- W4238280116 countsByYear W42382801162019 @default.
- W4238280116 countsByYear W42382801162020 @default.
- W4238280116 countsByYear W42382801162021 @default.
- W4238280116 countsByYear W42382801162022 @default.
- W4238280116 countsByYear W42382801162023 @default.
- W4238280116 crossrefType "journal-article" @default.
- W4238280116 hasAuthorship W4238280116A5066617185 @default.
- W4238280116 hasConcept C114157696 @default.
- W4238280116 hasConcept C119889771 @default.
- W4238280116 hasConcept C132190689 @default.
- W4238280116 hasConcept C161790260 @default.
- W4238280116 hasConcept C178790620 @default.
- W4238280116 hasConcept C179104552 @default.
- W4238280116 hasConcept C181886296 @default.
- W4238280116 hasConcept C185592680 @default.
- W4238280116 hasConcept C2777435628 @default.
- W4238280116 hasConcept C2780440420 @default.
- W4238280116 hasConcept C2781066024 @default.
- W4238280116 hasConcept C502130503 @default.
- W4238280116 hasConcept C518104683 @default.
- W4238280116 hasConcept C540031477 @default.
- W4238280116 hasConcept C75473681 @default.
- W4238280116 hasConceptScore W4238280116C114157696 @default.
- W4238280116 hasConceptScore W4238280116C119889771 @default.
- W4238280116 hasConceptScore W4238280116C132190689 @default.
- W4238280116 hasConceptScore W4238280116C161790260 @default.
- W4238280116 hasConceptScore W4238280116C178790620 @default.
- W4238280116 hasConceptScore W4238280116C179104552 @default.
- W4238280116 hasConceptScore W4238280116C181886296 @default.
- W4238280116 hasConceptScore W4238280116C185592680 @default.
- W4238280116 hasConceptScore W4238280116C2777435628 @default.
- W4238280116 hasConceptScore W4238280116C2780440420 @default.
- W4238280116 hasConceptScore W4238280116C2781066024 @default.
- W4238280116 hasConceptScore W4238280116C502130503 @default.
- W4238280116 hasConceptScore W4238280116C518104683 @default.
- W4238280116 hasConceptScore W4238280116C540031477 @default.
- W4238280116 hasConceptScore W4238280116C75473681 @default.
- W4238280116 hasIssue "1" @default.
- W4238280116 hasLocation W42382801161 @default.
- W4238280116 hasOpenAccess W4238280116 @default.
- W4238280116 hasPrimaryLocation W42382801161 @default.
- W4238280116 hasRelatedWork W1976911228 @default.
- W4238280116 hasRelatedWork W2001740828 @default.
- W4238280116 hasRelatedWork W2006760060 @default.
- W4238280116 hasRelatedWork W2007720516 @default.
- W4238280116 hasRelatedWork W2020996367 @default.
- W4238280116 hasRelatedWork W2034154422 @default.
- W4238280116 hasRelatedWork W2073462540 @default.
- W4238280116 hasRelatedWork W2094211439 @default.
- W4238280116 hasRelatedWork W2149873541 @default.
- W4238280116 hasRelatedWork W2513031782 @default.
- W4238280116 hasVolume "211" @default.
- W4238280116 isParatext "false" @default.
- W4238280116 isRetracted "false" @default.
- W4238280116 workType "article" @default.