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Investigating (pseudo)-heterogeneous Pd-catalysts for kraft lignin depolymerization under mild aqueous basic conditions

hal.structure.identifierInstitut de recherches sur la catalyse et l'environnement de Lyon [IRCELYON]
dc.contributor.authorBOURBIAUX, Dolorès
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorXU, Yu
hal.structure.identifierInstitut de recherches sur la catalyse et l'environnement de Lyon [IRCELYON]
hal.structure.identifierIRCELYON-Microscopie [MICROSCOPIE]
dc.contributor.authorBUREL, L.
hal.structure.identifierInstitut de recherches sur la catalyse et l'environnement de Lyon [IRCELYON]
dc.contributor.authorGOC, Firat
hal.structure.identifierCatalyse, Polymérisation, Procédés et Matériaux [CP2M]
dc.contributor.authorFONGARLAND, P.
hal.structure.identifierCatalyse, Polymérisation, Procédés et Matériaux [CP2M]
dc.contributor.authorPHILIPPE, Régis
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAUBERT, Guillaume
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
hal.structure.identifierInstitut de recherches sur la catalyse et l'environnement de Lyon [IRCELYON]
hal.structure.identifierIRCELYON-C'Durable [CDURABLE]
dc.contributor.authorRATABOUL, F.
hal.structure.identifierInstitut de recherches sur la catalyse et l'environnement de Lyon [IRCELYON]
hal.structure.identifierIRCELYON-C'Durable [CDURABLE]
dc.contributor.authorDJAKOVITCH, Laurent
dc.date.issued2021
dc.identifier.issn2073-4344
dc.description.abstractEnLignin is one of the main components of lignocellulosic biomass and corresponds to the first renewable source of aromatic compounds. It is obtained as a by-product in 100 million tons per year, mainly from the paper industry, from which only 2–3% is upgraded for chemistry purposes, with the rest being used as an energy source. The richness of the functional groups in lignin makes it an attractive precursor for a wide variety of aromatic compounds. With this aim, we investigated the Pd-catalyzed depolymerization of lignin under mild oxidizing conditions (air, 150 °C, and aqueous NaOH) producing oxygenated aromatic compounds, such as vanillin, vanillic acid, and acetovanillone. Palladium catalysts were implemented following different strategies, involving nanoparticles stabilized in water, and nanoparticles were supported on TiO2. Significant conversion of lignin was observed in all cases; however, depending on the catalyst nature and the synthetic methods, differences were observed in terms of selectivity in aromatic monomers, mainly vanillin. All these aspects are discussed in detail in this report, which also provides new insights into the role that Pd-catalysts can play for the lignin depolymerization mechanism.
dc.description.sponsorshipNouveau concept intégré pour la conversion de la lignine en produits chimiques utilisant des nanoparticules de palladium confinées - ANR-17-CE07-0027
dc.language.isoen
dc.publisherMDPI
dc.subject.enlignin
dc.subject.enoxidative depolymerization
dc.subject.enheterogeneous catalysis
dc.subject.enmetallic nanoparticles
dc.subject.enpalladium
dc.title.enInvestigating (pseudo)-heterogeneous Pd-catalysts for kraft lignin depolymerization under mild aqueous basic conditions
dc.typeArticle de revue
dc.identifier.doi10.3390/catal11111311
dc.subject.halChimie/Polymères
dc.subject.halChimie/Catalyse
bordeaux.journalCatalysts
bordeaux.page1311
bordeaux.volume11
bordeaux.issue11
bordeaux.peerReviewedoui
hal.identifierhal-03411521
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03411521v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Catalysts&rft.date=2021&rft.volume=11&rft.issue=11&rft.spage=1311&rft.epage=1311&rft.eissn=2073-4344&rft.issn=2073-4344&rft.au=BOURBIAUX,%20Dolor%C3%A8s&XU,%20Yu&BUREL,%20L.&GOC,%20Firat&FONGARLAND,%20P.&rft.genre=article


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