Matches in SemOpenAlex for { <https://semopenalex.org/work/W2012146903> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2012146903 endingPage "84" @default.
- W2012146903 startingPage "65" @default.
- W2012146903 abstract "Bimetallic catalysts were prepared using two different techniques. Ruthenium or platinum was deposited on Raney copper by oxido-reduction. Ruthenium deposited on charcoal was modified by copper by catalytic reduction. Aqueous phase polyol conversions (glycerol, erythritol, xylitol, glucitol) in the range 493–533 K under 4 MPa of hydrogen show that unsaturated intermediates resulting from dehydrogenation are irreversibly adsorbed on the surface of copper-based catalysts modified or not by Ru or Pt. CC and CO bond cleavages observed on Raney copper occur through the nucleophilic action of adsorbed hydroxyl groups. For surface atomic ratios Ru or Pt to copper from 0–0.15, these reactions are deactivated due to the disappearance of surface hydroxyl groups. This phenomenon can be explained through the induced reduction of hydroxylated copper in the presence, at the catalyst surface, of H2Ru or H2Pt electrodes that fix their potential on the total catalyst. For surface atomic ratios Ru or Pt to copper greater than 0.15, cyclodehydration reactions leading to furanic derivatives occur through an electron transfer from copper to the second metal, thus creating electrophilic copper. In the case of ruthenium modified by copper, only the more active sites of Ru responsible for the multiple hydrogenolysis of CC and CO bonds are poisoned, part of the copper being deposited on the charcoal support. The remaining ruthenium not interacting with copper retains a high activity for simple hydrogenolysis of CC and CO bonds." @default.
- W2012146903 created "2016-06-24" @default.
- W2012146903 creator A5001751235 @default.
- W2012146903 creator A5009909989 @default.
- W2012146903 creator A5014657596 @default.
- W2012146903 creator A5059424495 @default.
- W2012146903 creator A5064286358 @default.
- W2012146903 creator A5067131690 @default.
- W2012146903 creator A5082188298 @default.
- W2012146903 date "1991-11-01" @default.
- W2012146903 modified "2023-10-07" @default.
- W2012146903 title "Polyol conversions into furanic derivatives on bimetallic catalysts: CuRu, CuPt and RuCu" @default.
- W2012146903 cites W1976100626 @default.
- W2012146903 cites W1981585678 @default.
- W2012146903 cites W1985151950 @default.
- W2012146903 cites W2009216155 @default.
- W2012146903 cites W2014763261 @default.
- W2012146903 cites W2021447633 @default.
- W2012146903 cites W2043315151 @default.
- W2012146903 cites W2094671329 @default.
- W2012146903 cites W2319445962 @default.
- W2012146903 cites W2321044396 @default.
- W2012146903 cites W2427651566 @default.
- W2012146903 cites W2460535487 @default.
- W2012146903 cites W3015977768 @default.
- W2012146903 doi "https://doi.org/10.1016/0304-5102(91)85006-n" @default.
- W2012146903 hasPublicationYear "1991" @default.
- W2012146903 type Work @default.
- W2012146903 sameAs 2012146903 @default.
- W2012146903 citedByCount "92" @default.
- W2012146903 countsByYear W20121469032012 @default.
- W2012146903 countsByYear W20121469032013 @default.
- W2012146903 countsByYear W20121469032014 @default.
- W2012146903 countsByYear W20121469032015 @default.
- W2012146903 countsByYear W20121469032016 @default.
- W2012146903 countsByYear W20121469032017 @default.
- W2012146903 countsByYear W20121469032018 @default.
- W2012146903 countsByYear W20121469032019 @default.
- W2012146903 countsByYear W20121469032020 @default.
- W2012146903 countsByYear W20121469032021 @default.
- W2012146903 countsByYear W20121469032022 @default.
- W2012146903 countsByYear W20121469032023 @default.
- W2012146903 crossrefType "journal-article" @default.
- W2012146903 hasAuthorship W2012146903A5001751235 @default.
- W2012146903 hasAuthorship W2012146903A5009909989 @default.
- W2012146903 hasAuthorship W2012146903A5014657596 @default.
- W2012146903 hasAuthorship W2012146903A5059424495 @default.
- W2012146903 hasAuthorship W2012146903A5064286358 @default.
- W2012146903 hasAuthorship W2012146903A5067131690 @default.
- W2012146903 hasAuthorship W2012146903A5082188298 @default.
- W2012146903 hasConcept C161790260 @default.
- W2012146903 hasConcept C178790620 @default.
- W2012146903 hasConcept C179104552 @default.
- W2012146903 hasConcept C181886296 @default.
- W2012146903 hasConcept C185592680 @default.
- W2012146903 hasConcept C43411465 @default.
- W2012146903 hasConcept C518104683 @default.
- W2012146903 hasConcept C544778455 @default.
- W2012146903 hasConcept C555196967 @default.
- W2012146903 hasConceptScore W2012146903C161790260 @default.
- W2012146903 hasConceptScore W2012146903C178790620 @default.
- W2012146903 hasConceptScore W2012146903C179104552 @default.
- W2012146903 hasConceptScore W2012146903C181886296 @default.
- W2012146903 hasConceptScore W2012146903C185592680 @default.
- W2012146903 hasConceptScore W2012146903C43411465 @default.
- W2012146903 hasConceptScore W2012146903C518104683 @default.
- W2012146903 hasConceptScore W2012146903C544778455 @default.
- W2012146903 hasConceptScore W2012146903C555196967 @default.
- W2012146903 hasIssue "1" @default.
- W2012146903 hasLocation W20121469031 @default.
- W2012146903 hasOpenAccess W2012146903 @default.
- W2012146903 hasPrimaryLocation W20121469031 @default.
- W2012146903 hasRelatedWork W1527955429 @default.
- W2012146903 hasRelatedWork W1901536072 @default.
- W2012146903 hasRelatedWork W2006760060 @default.
- W2012146903 hasRelatedWork W2043249453 @default.
- W2012146903 hasRelatedWork W2049576830 @default.
- W2012146903 hasRelatedWork W2069815645 @default.
- W2012146903 hasRelatedWork W2154285414 @default.
- W2012146903 hasRelatedWork W2364283690 @default.
- W2012146903 hasRelatedWork W2371864823 @default.
- W2012146903 hasRelatedWork W4386672393 @default.
- W2012146903 hasVolume "70" @default.
- W2012146903 isParatext "false" @default.
- W2012146903 isRetracted "false" @default.
- W2012146903 magId "2012146903" @default.
- W2012146903 workType "article" @default.