Hydrolysis–dehydration of cellulose: efficiency of NbZr catalysts under batch and flow conditions
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | GROMOV, Nikolay | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | OGORODNIKO, Olga | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | MEDVEDA, Tatiana | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | PANCHENKO, Valenti | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | YAKOVLEVA, Irina | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | ISUPOVA, Lyubov | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | TIMOFEEVA, Maria | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | TARAN, Oxana | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | AYMONIER, Cyril | |
| hal.structure.identifier | Boreskov Institute of Catalysis | |
| dc.contributor.author | PARMON, Valentin | |
| dc.date.accessioned | 2023-11-20T17:25:54Z | |
| dc.date.available | 2023-11-20T17:25:54Z | |
| dc.date.issued | 2023 | |
| dc.identifier.issn | 2073-4344 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/185843 | |
| dc.description.abstractEn | Niobium oxide supported on ZrO 2 and mixed oxide of NbO x-ZrO 2 was prepared and characterized. Mechanical treatment was followed by the microwave heating procedure of catalysts with more advanced textural parameters. The amount of Lewis (LAS) and Brønsted (BAS) acid sites rose with the increasing Nb content in the catalysts. The catalytic properties of samples of niobiazirconia (NbZr samples, NbZr catalysts) were studied in a cellulose hydrolysis-dehydration reaction at 453 K under an inert Ar atmosphere in a batch reactor. Glucose and 5-hydroxumethylfurfural (5-HMF) were the major products. The initial reaction rate could be tuned by the density of acid sites on the surface of solid. At a low density of acid sites (0.1-0.3 µmol•m −2), the initial reaction rate had a pronounced inverse correlation. Increasing the LAS/BAS from 0.3 to 2.5 slightly stimulated the formation of the target products. The catalytic properties of NbZr catalysts prepared by microwave treatment were studied in cellulose transformation in a flow setup. Glucose was found to be the major product. The maximum yield of glucose was observed in the presence of the sample of 17%Nb/ZrO 2. Increasing Nb content resulted in the formation of Nb-associated acid centers and, in turn, increasing catalyst acidity and activity. | |
| dc.language.iso | en | |
| dc.publisher | MDPI | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/ | |
| dc.subject.en | cellulose | |
| dc.subject.en | hydrolysis-dehydration | |
| dc.subject.en | glucose | |
| dc.subject.en | 5-hydroxymethylfurfural | |
| dc.subject.en | niobium oxide | |
| dc.subject.en | zirconium oxide | |
| dc.subject.en | batch reactor | |
| dc.subject.en | flow reactor | |
| dc.title.en | Hydrolysis–dehydration of cellulose: efficiency of NbZr catalysts under batch and flow conditions | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.3390/catal13091298 | |
| dc.subject.hal | Chimie/Catalyse | |
| dc.subject.hal | Chimie/Polymères | |
| bordeaux.journal | Catalysts | |
| bordeaux.page | 1298 | |
| bordeaux.volume | 13 | |
| bordeaux.hal.laboratories | Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026 | * |
| bordeaux.issue | 9 | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-04208680 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-04208680v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Catalysts&rft.date=2023&rft.volume=13&rft.issue=9&rft.spage=1298&rft.epage=1298&rft.eissn=2073-4344&rft.issn=2073-4344&rft.au=GROMOV,%20Nikolay&OGORODNIKO,%20Olga&MEDVEDA,%20Tatiana&PANCHENKO,%20Valenti&YAKOVLEVA,%20Irina&rft.genre=article |
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