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Hydrolysis–Dehydration of Cellulose: Efficiency of NbZr Catalysts under Batch and Flow Conditions Full article

Journal Catalysts
ISSN: 2073-4344
Output data Year: 2023, Volume: 13, Number: 9, Article number : 1298, Pages count : 17 DOI: 10.3390/catal13091298
Tags cellulose; hydrolysis–dehydration; glucose; 5-hydroxymethylfurfural; niobium oxide; zirconium oxide; batch reactor; flow reactor
Authors Gromov Nikolay V. 1 , Ogorodnikova Olga L. 1 , Medvedeva Tatiana B. 1 , Panchenko Valentina N. 1 , Yakovleva Irina S. 1 , Isupova Lyubov A. 1 , Timofeeva Maria N. 1 , Taran Oxana P. 1 , Aymonier Cyril 2 , Parmon Valentin N. 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Lavrentiev av. 5, 630090 Novosibirsk, Russia
2 CNRS, University of Bordeaux, Bordeaux INP, ICMCB UMR5026, 33600 Pessac, France

Funding (2)

1 Russian Foundation for Basic Research 17-53-16027
2 Russian Science Foundation 22-23-01012

Abstract: Niobium oxide supported on ZrO2 and mixed oxide of NbOx-ZrO2 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 niobia-zirconia (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 set-up. Glucose was found to be the major product. The maximum yield of glucose was observed in the presence of the sample of 17%Nb/ZrO2. Increasing Nb content resulted in the formation of Nb-associated acid centers and, in turn, increasing catalyst acidity and activity.
Cite: Gromov N.V. , Ogorodnikova O.L. , Medvedeva T.B. , Panchenko V.N. , Yakovleva I.S. , Isupova L.A. , Timofeeva M.N. , Taran O.P. , Aymonier C. , Parmon V.N.
Hydrolysis–Dehydration of Cellulose: Efficiency of NbZr Catalysts under Batch and Flow Conditions
Catalysts. 2023. V.13. N9. 1298 :1-17. DOI: 10.3390/catal13091298 WOS Scopus РИНЦ AN OpenAlex
Dates:
Submitted: Jul 7, 2023
Accepted: Aug 28, 2023
Published print: Sep 15, 2023
Published online: Sep 15, 2023
Identifiers:
Web of science: WOS:001073258500001
Scopus: 2-s2.0-85172926806
Elibrary: 54975427
Chemical Abstracts: 2023:2053897
OpenAlex: W4386814506
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Scopus 3
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