2026-05-27T05:29:58Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/238052026-02-03T11:09:16Zcom_10630_2254col_10630_37953

Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction López-Asensio, Raquel Jiménez-Gómez, Carmen Pilar García-Sancho, Cristina Moreno-Tost, Ramón Cecilia-Buenestado, Juan Antonio Maireles-Torres, Pedro Jesús Furanos Biomasa Hidrogenación Zr-doped mesoporous silicas with different textural parameters have been synthesized in the presence of structure-modifying agents, and then characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption-desorption at -196 ºC, NH3 thermoprogrammed desorption (NH3–TPD), CO2 thermoprogrammed desorption (CO2–TPD), and X-ray photoelectron spectroscopy (XPS). These porous materials were evaluated in the furfural hydrogenation through the Meerwein-Ponndorf-Verley (MPV) reaction. The catalytic results indicate that the catalyst synthesized under hydrothermal conditions and adding a pore expander agent is more active and selective to furfuryl alcohol. However, the Zr-doped porous silica catalysts that were synthesized at room temperature, which possess narrow pore sizes, tend to form i-propyl furfuryland difurfuryl ethers, coming from etherification between furfuryl alcohol (FOL) and isopropanol molecules (used as H-donor) by a SN2 mechanism. 2022-03-04T09:22:21Z 2022-03-04T09:22:21Z 2019 2019-02-14 journal article https://hdl.handle.net/10630/23805 10.3390/ijms20040828 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional MDPI