RT Journal Article
T1 Mixed Oxides Derived from Hydrotalcites Mg/Al Active in the Catalytic Transfer Hydrogenation of Furfural to Furfuryl Alcohol
A1 López-Asensio, Raquel
A1 Cecilia-Buenestado, Juan Antonio
A1 Herrera-Delgado, María Concepción
A1 Larrubia-Vargas, María Ángeles
A1 García-Sancho, Cristina
A1 Maireles-Torres, Pedro Jesús
A1 Moreno-Tost, Ramón
K1 Espectroscopía
AB Herein, a family of Mg/Al hydrotalcites was synthesized as catalytic precursors of MgAlOx mixed oxides. Both hydrotalcites and mixed oxides were characterized and the mixed oxides were tested in the reduction of furfural to yield furfuryl alcohol by MPV reaction using isopropanol as hydrogen donor. Different catalytic parameters were tested, such as the type of alcohol, calcination temperature of the hydrotalcite, and reaction temperature. Furfural and isopropanol were adsorbed on the MgAl-3 catalyst to follow the species adsorbed on the catalyst by FTIR analysis. The results showed that the isopropanol was activated as isopropoxide and furfural changed the adsorption site with increasing temperature but maintaining the h1-conformation. The catalytic performances were associated with the basicity of the catalysts and the deactivation processes have been attributed to the existence of adsorbed species on the surface, mainly due to furfural-derived compounds. The catalysts were reused in three consecutive cycles showing a sharp drop of catalytic activity. To recover the activity, the catalysts were calcined at 500 °C but the activity was only partially recovered. The XPS analysis after reactivation showed that the catalyst surface was modified due to the segregation of hydroxides of Mg and Al.
PB IOAP-MDPI
YR 2022
FD 2022-12-26
LK https://hdl.handle.net/10630/25969
UL https://hdl.handle.net/10630/25969
LA eng
NO López-Asensio R, Cecilia-Buenestado JA, Herrera-Delgado C, Larrubia-Vargas MÁ, García-Sancho C, Maireles-Torres PJ, Moreno-Tost R. Mixed Oxides Derived from Hydrotalcites Mg/Al Active in the Catalytic Transfer Hydrogenation of Furfural to Furfuryl Alcohol. Catalysts. 2023; 13(1):45. https://doi.org/10.3390/catal13010045
NO This research was funded by the Spanish Ministry of Science and Innovation (PID2021-122736OB-C42), FEDER (European Union) funds (PID2021-122736OB-C42, P20-00375, UMA20-FEDERJA88). Partial funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026