Author, as appears in the article.: Tampieri A; Föttinger K; Barrabés N; Medina F
Department: Enginyeria Química
URV's Author/s: Medina Cabello, Francisco
Keywords: Nmr Mg-al hydrotalcites In situ/operando Hydrotalcite Atr-ir Aldol condensation performance operando nmr mixed oxides in situ hydrotalcite fuels feedstocks decomposition conversion chemicals biomass atr-ir alkanes
Abstract: Bio-derived furfural and 5-hydroxymethylfurfural can be combined with acetone to yield aldol condensation products that may serve as biofuel and polymer precursors. We have explored different catalytic systems to obtain and purify each product in the most efficient way. The results of the catalytic tests of the cross-condensations and of the self-condensation of acetone allowed the comparison of the different reactivity of the two aldehydes. Online and in situ/operando ATR-IR was used to monitor the reaction over time and to study the interaction of the reaction species with the solid catalyst, especially the formation of deactivating organic matter that covers the surface, which is a major issue in heterogeneous condensation processes. In situ NMR was used to study the ongoing reaction, assessing its stereoselectivity, and to study the behavior of deuterated species in the catalytic system. Finally, the preparation of C14, a hetero-double-condensation product, was also explored.
Thematic Areas: Química Process chemistry and technology Medicina ii Materiais Interdisciplinar Geociências General environmental science Farmacia Environmental science (miscellaneous) Environmental science (all) Engineering, environmental Engineering, chemical Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry, physical Catalysis Biotecnología Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: francesc.medina@urv.cat
Author identifier: 0000-0002-3111-1542
Record's date: 2023-12-02
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.sciencedirect.com/science/article/pii/S092633732200830X
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Applied Catalysis B-Environmental. 319
APA: Tampieri A; Föttinger K; Barrabés N; Medina F (2022). Catalytic aldol condensation of bio-derived furanic aldehydes and acetone: Challenges and opportunities. Applied Catalysis B-Environmental, 319(), -. DOI: 10.1016/j.apcatb.2022.121889
Article's DOI: 10.1016/j.apcatb.2022.121889
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV