2026-05-28T08:36:30Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/310602026-02-03T11:15:09Zcom_10630_2254col_10630_37953
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Valdivieso-Vera, Daniel Alejandro
author
Flores-Escamilla, Gerardo Antonio
author
Cano-Gómez, José Julián
author
Barroso-Martín, Isabel
author
Rodríguez-Castellón, Enrique
author
Santos-López, Iván Alonso
author
Guerrero-Pérez, María Olga
2024-04-17T11:07:20Z
2024-04-17T11:07:20Z
2024
Valdivieso-Vera, D. A., Flores-Escamilla, G. A., Cano-Gómez, J. J., Barroso-Martín, I., Rodríguez-Castellón, E., Santos-López, I. A., & Guerrero-Pérez, M. O. (2024). Effect of Nb as dopant of hydrotalcite catalysts during the ethanol condensation to optimize n-Butanol production. Catalysis Today, 433.
https://hdl.handle.net/10630/31060
https://doi.org/10.1016/j.cattod.2024.114658
The present study optimizes Cu-supported catalysts on hydrotalcite for the synthesis of n-butanol whose interest
is in its use as biofuel, due to its superior performance in comparison with other short-chain alcohols. The
catalytic performance was improved by adding Nb to the catalytic formulation. In this way, several Cu-Nb
catalysts supported on hydrotalcites (Mg/Al) with different Nb loadings were synthesized by incipient wetness
impregnation and characterized by H2 temperature-programmed reduction, X-ray diffraction, N2 physisorption,
CO2 and NH3 thermo-programmed desorption and X-ray photoelectron spectroscopy. It was shown that the
incorporation of Nb promoted a suitable balance between the acid-basic and redox sites, modulating the Cu0/Cu+
dehydrogenation/hydrogenation properties for the n-BuOH production. The synthesis of multiple value-added
products (n-BuOH, acetaldehyde, ethyl acetate, and 1-hexanol) was achieved in both the liquid (at 180 ºC)
and gas phase (150 350 ºC), where it was demonstrated that both the n-BuOH selectivity and ethanol con-
version improved with the Nb addition. The performance of the catalysts under time on stream and their
recycling is also described.
eng
Atribución-NoComercial 4.0 Internacional
Catálisis
Catalizadores
Effect of Nb as dopant of hydrotalcite catalysts during the ethanol condensation to optimize n-Butanol production
journal article
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