Porous SiO 2 Nanospheres Modified with ZrO 2 and Their Use in One-Pot Catalytic Processes to Obtain Value-Added Chemicals from Furfural

Porous SiO nanospheres were modified with different loadings of ZrO to obtain catalysts with a Si/Zr molar ratio from 2.5 to 30. These materials were characterized by X-ray diffraction, transmission and scanning electron microscopies, N adsorption-desorption at -196 °C, X-ray photoelectron spectrosc...

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Published in:Industrial & engineering chemistry research 2021-12, Vol.60 (51), p.18791-18805
Main Authors: Maderuelo-Solera, Rocío, Richter, Stefan, Jiménez-Gómez, Carmen P, García-Sancho, Cristina, García-Mateos, Francisco J, Rosas, Juana M, Moreno-Tost, Ramón, Cecilia, Juan A, Maireles-Torres, Pedro
Format: Article
Language:English
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Summary:Porous SiO nanospheres were modified with different loadings of ZrO to obtain catalysts with a Si/Zr molar ratio from 2.5 to 30. These materials were characterized by X-ray diffraction, transmission and scanning electron microscopies, N adsorption-desorption at -196 °C, X-ray photoelectron spectroscopy and pyridine and 2-6-dimethylpyridine thermoprogrammed desorption. The characterization of these catalysts has revealed that a high proportion of Zr favors the formation of Lewis acid sites, which are implied in catalytic transfer hydrogenation processes, whereas the low Brönsted acidity promotes a dehydration reaction, being possible to give rise to a large variety of products from furfural through consecutive reactions, such as furfuryl alcohol, i-propyl furfuryl ether, i-propyl levulinate, and γ-valerolactone, in a range of temperature of 110-170 °C and 1-6 h of reaction.
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.1c02848