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Grant support

This work received financial support from the Spanish Ministry of Science and Innovation through the Cat4BioMon Project (PID2021-122736OB-C44), being funded through MCIN/AEI/10.13039/501100011033/FEDER, UE. This work has received funding from the Bio-based Industries Joint Undertaking (JU) under the European Union's Horizon 2020 research and innovation program under grant agreement 101023202. The JU receives support from the European Union's Horizon 2020 research and innovation program and the Bio-based Industries Consortium.

Analysis of institutional authors

El Tawil-Lucas, MAuthorMoreno, JAuthorGarcia, AAuthorHernandez, BAuthorIglesias, JCorresponding Author

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November 5, 2024
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Article
Hybrid Gold

Kinetics of the valorization of hexoses with Sn-USY catalysts in methanolic media: glycosidation vs. retroaldol cleavage

Publicated to:Reaction Chemistry & Engineering. 10 (1): 90-105 - 2024-10-09 10(1), DOI: 10.1039/d4re00307a

Authors: Jimenez-Martin, J M; El Tawil-Lucas, M; Garcia-Jerez, C; Moreno, J; Garcia, A; Hernandez, B; Iglesias, J

Affiliations

Univ Rey Juan Carlos, Chem & Environm Engn Grp, C Tulipan S-N, Madrid 28933, Spain - Author
Univ Rey Juan Carlos, Inst Tecnol Sostenibil, C Tulipan S-N, Madrid 28933, Spain - Author

Abstract

Catalytic performance of potassium-exchanged Sn-containing USY zeolite ([K]Sn-USY) for the transformation of hexoses into methyl lactate in methanol has been studied. This work explores the effects of temperature and catalyst loading on this transformation process, shedding light on the kinetic aspects of this process in which the starting sugars undergo a complex network of different transformations to yield different biobased products with commercial interest. The proposed kinetic model integrates several key reactions: isomerization of the starting sugars, glycosidation with the alcohol solvent, retro-aldol cleavage of carbohydrates to minor sugars, and hydrolytic side transformations. By considering these steps, insights into the determining factors that influence overall transformation and high selectivity of the [K]Sn-USY zeolite for methyl lactate are clarified. Notably, this work highlights the formation of side products, including methoxy methyl 2-hydroxy-butanoate (MMHB) and glycolaldehyde dimethyl acetal (GADMA), which have been previously overlooked in other kinetic modelling and derived from the retroaldol cleavage of aldoses. The [K]Sn-USY catalysts exhibit promising activity and selectivity, making them attractive candidates for bio-based plastic production. A comprehensive understanding of the catalytic behavior and side product formation contributes to the optimization of these catalysts for sustainable carbohydrate valorization.

Keywords

ConversionFructoseGlucoseIsomerizationLactatLactideSugarsZeolite

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Reaction Chemistry & Engineering due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 105/239, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Chemistry, Multidisciplinary. Notably, the journal is positioned en el Cuartil Q2 para la agencia Scopus (SJR) en la categoría Chemical Engineering (Miscellaneous).

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-08-02:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 5 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.

    Leadership analysis of institutional authors

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author () and Last Author (Iglesias Morán, José).

    the author responsible for correspondence tasks has been Iglesias Morán, José.