Listar por autor "García-Sancho, Cristina"
Mostrando ítems 21-40 de 53
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Mesoporous niobium oxide for dehydration of D-xylose into furfural
García-Sancho, Cristina
; Rubio Caballero, Juan Miguel; Moreno-Tost, Ramón; Mérida-Robles, Josefa María; Santamaría-González, José; Jiménez López, Antonio; Maireles-Torres, Pedro Jesús[et al.] (2013-09-13)
El furfural posee un gran potencial como molécula plataforma de origen renovable para la síntesis de una alta variedad de compuestos químicos. Se obtiene mediante la deshidratación de pentosas, principalmente a partir de ... -
Mixed Oxides Derived from Hydrotalcites Mg/Al Active in the Catalytic Transfer Hydrogenation of Furfural to Furfuryl Alcohol
López-Asensio, Raquel; Cecilia-Buenestado, Juan Antonio; Herrera-Delgado, María Concepción; Larrubia-Vargas, María Ángeles; García-Sancho, Cristina; Maireles-Torres, Pedro Jesús; Moreno-Tost, Ramón[et al.] (IOAP-MDPI, 2022-12-26)
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 ... -
Nanoesferas porosas de SiO2 dopadas con Zr y su uso en procesos catalíticos one-pot para la obtención de productos de alto valor añadido desde furfural
Maderuelo-Solera, Rocío; Richter, Stefan; Jiménez-Gómez, Carmen Pilar; García-Sancho, Cristina; García-Mateos, Francisco José; Rosas-Martínez, Juana María; Moreno-Tost, Ramón; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (2021)
En el presente trabajo, se ha estudiado la modificación de nanoesferas porosas de SiO2 con diferente proporción de Zr para obtener catalizadores con relaciones molares Si/Zr entre 2.5 y 30. Estos materiales se han caracterizado ... -
Nanopartículas de óxido de silicio y aluminio para la producción de 5-hidroximetilfurfural desde galactosa
Torres-Olea, Benjamín; Alcalá-García, María José; García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús[et al.] (2022)
El problema del calentamiento global, fuentes de recursos fósiles limitadas y amenazas de desabastecimiento empujan al desarrollo de nuevos métodos de obtención de recursos procedentes de fuentes renovables, tales como la ... -
NB2O5 soportado en SBA-15 para la deshidratación de glicerol a acroleína
Moreno-Tost, Ramón; Cecilia-Buenestado, Juan Antonio; Moreno Ruíz, A.; García-Sancho, Cristina; Mérida-Robles, Josefa María; Santamaría-González, José; Maireles-Torres, Pedro Jesús[et al.] (2013)
La producción industrial de la acroleína se basa en la oxidación selectiva del propeno, de origen fósil, en presencia de catalizadores complejos de BiMoOx . Debido a la disminución de los recursos petroquímicos, los recursos ... -
Obtención de 5-hidroximetilfurfural a partir de agarosa y galactosa usando nanoesferas de sílica-alúmina.
Torres-Olea, Benjamín; Rodríguez Carballo, Gabriela; García-Sancho, Cristina; Moreno-Tost, Ramón; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (2023)
En los últimos años, existe un gran interés en la obtención de moléculas plataforma mediante el uso de materias primas renovables. El 5-hidroximetilfurfural (HMF), una de estas moléculas plataforma, es un compuesto valioso ... -
Obtención de acroleína mediante la deshidratación de glicerol en presencia de Al-SBA-15
Cecilia-Buenestado, Juan Antonio; García-Sancho, Cristina; Mérida-Robles, Josefa María; Santamaría-González, José; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús[et al.] (2015-09-02)
Hoy en día es necesaria la búsqueda de nuevas aplicaciones a los excedentes de glicerol provenientes de la industria del biodiésel, siendo su deshidratación a acroleína, un intermedio muy importante y versátil en la industria ... -
Oxidative Condensation of Furfural with Ethanol Using Pd-Based Catalysts: Influence of the Support
Cecilia-Buenestado, Juan Antonio; Jiménez-Gómez, Carmen Pilar; Torres-Bujalance, Virginia; García-Sancho, Cristina; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús[et al.] (MDPI, 2020-11-12)
PdO nanoparticles were deposited on several supports (β-zeolite, Al2O3, Fe2O3, MgO, and SiO2), which displayed different crystallinity, textural properties, and amount of acid and basic sites. These catalysts were characterized ... -
Porous SiO2 Nanospheres Modified with ZrO2 and Their Use in One- Pot Catalytic Processes to Obtain Value-Added Chemicals from Furfural
Maderuelo-Solera, Rocío; Richter, Stefan; Jiménez-Gómez, Carmen Pilar; García-Sancho, Cristina; García-Mateos, Francisco José; Rosas-Martínez, Juana María; Moreno-Tost, Ramón; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (American Chemical Society, 2021-11-26)
Porous SiO2 nanospheres have been modified with different proportion of ZrO2 to obtain catalysts with Si/Zr molar ratio between 2.5 and 30. These materials were characterized by X-ray diffraction, transmission electron ... -
Producción de 5-etoximetilfurfural desde azúcares derivados de la biomasa usando zeolitas en procesos de 1 y 2 pasos
Torres-Olea, Benjamín; García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús (2021)
En este trabajo se ha comprobado la efectividad de la zeolita beta (relación molar Si/Al= 10) en la isomerización de glucosa a fructosa y su deshidratación a HMF, y posterior eterificación a EMF, en un solo paso en etanol, ... -
Production of Biofuels by 5-Hydroxymethylfurfural Etherification Using Ion-Exchange Resins as Solid Acid Catalysts
Torres-Olea, Benjamín; Fúnez Núñez, Inmaculada; García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús[et al.] (mdpi, 2020-11-09)
In this work, acidic ion-exchange resins with strong Brönsted sulphonic groups were assessed in the catalytic etherification of the platform molecule 5-(hydroxymethyl)furfural (HMF) to 5-(ethoxymethyl)furfural (EMF), a ... -
Recent Advances in Mechanochemical Pretreatment of Lignocellulosic Biomass
Pérez-Merchán, Antonio Manuel; Rodríguez Carballo, Gabriela; Torres-Olea, Benjamín; García-Sancho, Cristina; Maireles-Torres, Pedro Jesús; Mérida-Robles, Josefa María; Moreno-Tost, Ramón[et al.] (IOAP-MPDI, 2022-08-17)
Biorefineries are industrial facilities where biomass is converted into chemicals, fuels and energy. The use of lignocellulose as raw material implies the development of pretreatments to reduce its recalcitrant character ... -
Recovery of pentoses-containing olive stones for their conversion into furfural in the presence of solid acid catalysts
Fúnez Núñez, Inmaculada; García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Serrano Cantador, Luis; Maireles-Torres, Pedro Jesús[et al.] (2020-06-24)
Olive stones were employed as feedstock for furfural production in two stages: 1) autohydrolysis of hemicellulosic fraction to recover their pentoses, mainly xylose, and 2) subsequent dehydration of pentoses into furfural. ... -
Selective Conversion of Glucose to 5-Hydroxymethylfurfural by Using L-Type Zeolites with Different Morphologies
Ginés-Molina, María José; Ahmad, Nur Hidayahni; Mérida-Robles, Sandra; García-Sancho, Cristina; Mintova, Svetlana; Ng, Eng-Poh; Maireles-Torres, Pedro Jesús[et al.] (MDPI, 2019-12-16)
In the present work, the morphology of L-type zeolite (LTL topology) has been modified in order to evaluate the influence of several protonated-form LTL-zeolites with different morphologies on their stability and catalytic ... -
Selective production of furan from gas-phase furfural decarbonylation on Ni-MgO catalysts.
Jiménez-Gómez, Carmen Pilar; Cecilia-Buenestado, Juan Antonio; García-Sancho, Cristina; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús (American Chemical Society, 2019-03-13)
A series of Ni-MgO catalysts (Ni/Mg molar ratio: 0.1-0.3), prepared by a coprecipitation-calcination-reduction methodology, was characterized and evaluated in the gas-phase hydrogenation of furfural. In all cases, after ... -
Si-Al nanospheres for the valorization of galactose and agarose into 5-hydroxymethylfurfural.
Torres-Olea, Benjamín; Rodríguez Carballo, Gabriela; García-Sancho, Cristina; Moreno-Tost, Ramón; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (2023)
5-hydroxymethylfurfural (HMF) is a compound that has gained attention to potentially substitute fossil resources in areas such as the polymer industry or the production of energy vectors. HMF is produced from the acid ... -
Synergic effect between inorganic salts and gamma-Al2O3 for xylose dehydration to furfural
Fúnez Núñez, Inmaculada; García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Serrano Cantador, Luis; Maireles-Torres, Pedro Jesús[et al.] (2018-07-17)
Lignocellulosic biomass, with a high content of hemicellulose, is the main source of pentoses, from which biofuels and value-added chemicals can be produced. Amongst the latter, 2-Furfuraldehyde (furfural, FUR) is the only ... -
Synthesis of hollow mesoporous spheres modified with ZrO2 and non-noble metals for the one-step reaction of furfural to 1,4-pentanediol.
Maderuelo-Solera, Rocío; Cecilia-Buenestado, Juan Antonio; García-Sancho, Cristina; Moreno-Tost, Ramón; Mérida-Robles, Josefa María; Maireles-Torres, Pedro Jesús[et al.] (2023)
The synthesis of these porous SiO2 nanospheres modified with ZrO2 was based on a previous work to which different metal loadings were co-precipitated to obtain a family of catalysts ranging from 15% Cu to 15% Co. For the ... -
Synthesis of Porous Clay Heterostructures Modified with SiO2–ZrO2 Nanoparticles for the Valorization of Furfural in One-Pot Process
Es Sih, Salima; Cecilia-Buenestado, Juan Antonio; Jiménez-Gómez, Carmen Pilar; García-Sancho, Cristina; García-Mateos, Francisco José; Rosas-Martínez, Juana María; Moreno-Tost, Ramón; Franco-Duro, Francisco Ignacio; Maireles-Torres, Pedro Jesús[et al.] (Wiley-VCH GmbH, 2022)
The layered structure of two smectites (montmorillonite and saponite) are modified by the insertion of SiO2–ZrO2 nanoparticles, with a Si/Zr molar ratio of 5, to form porous clay heterostructures (PCHs). These PCHs exhibit ... -
Tailoring basic and acidic properties of MgAl hydrotalcite by fluoride anions: Effect on glycerol oligomerisation
Maderuelo-Solera, Rocío; Ledesma-Muñoz, A.L.; García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Infantes-Molina, Antonia; Mérida-Robles, Josefa María; Maireles-Torres, Pedro Jesús; Moreno-Tost, Ramón[et al.] (Elsevier, 2023)
In this work, two families of catalysts based on mixed metal oxides derived from MgAl hydrotalcites were synthesized with a Mg/Al molar ratio of 3. On the one hand, in the first family, the fluoride anion was incorporated ...