RT Journal Article
T1 Tailoring the selectivity of Cu-based catalysts in the furfural hydrogenation reaction: Influence of the morphology of the silica support
A1 Jiménez-Gómez, Carmen Pilar
A1 Cecilia-Buenestado, Juan Antonio
A1 Alba Rubio, Ana Carolina
A1 Cassidy, Andrea
A1 Moreno-Tost, Ramón
A1 García-Sancho, Cristina
A1 Maireles-Torres, Pedro Jesús
K1 Catalizadores metálicos
AB Cu nanoparticles were incorporated on different porous silica supports (commercial silica, SBA-15 synthesizedboth at room temperature and under hydrothermal conditions, and mesocellular foam) by the strong electrostaticadsorption method and tested in the gas-phase furfural hydrogenation for the production of furfuryl alcohol and2-methylfuran, being the latter a promising biofuel. The incorporated copper species provided metal particlesizes lower than 5 nm in all cases. However, different catalytic behaviors, both in terms of conversion andselectivity, were detected due to the morphology and textural properties of each support. Cu over commercialsilica was more prone to suffer from deactivation, and it provided higher furfuryl alcohol yields, probably due toits higher acidity and lower metallic surface area. On the other hand, the agglomeration of Cu nanoparticlestogether with larger pore sizes complicated the access of furfural to the active sites using the hydrothermal SBA-15 support, thus decreasing the activity. In contrast, the addition of fluoride in the synthesis of mesoporous silica,which shortened the length of the silica channels (mesocellular foam), facilitated the furfural access and providedboth higher metallic surface area and lower acidity. This fact led to a more gradual deactivation, still attaininghigh values of furfural conversion and 2-methylfuran yield (95 and 76%, respectively) after 5 h at 190 ◦C.However, Cu over mesocellular foam changed its selectivity pattern along 48 h and after regeneration, increasingthe furfuryl alcohol selectivity due to the decreased number of available active sites.
PB Elsevier
YR 2022
FD 2022
LK https://hdl.handle.net/10630/23888
UL https://hdl.handle.net/10630/23888
LA eng
NO Jiménez-Gómez, C.P. et al. (2022) “Tailoring the selectivity of Cu-based catalysts in the furfural hydrogenation reaction: Influence of the morphology of the silica support,” Fuel, 319, p. 123827. doi:https://doi.org/10.1016/j.fuel.2022.123827.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 22 ene 2026