Listar QICM - Artículos por autor "Garcia-Sancho, Cristina"
Mostrando ítems 1-15 de 15
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Catalytic Activity of Mixed Al2O3-ZrO2 Oxides for Glucose Conversion into 5-Hydroxymethylfurfural
Torres-Olea, Benjamín; Mérida-Robles, Sandra; Garcia-Sancho, Cristina
; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús (MDPI, 2020-08-04)
In the present work, a series of catalysts based on aluminum and zirconium oxides was studied for the transformation of glucose into 5-hydroxymethylfurfural. These catalysts were characterized by using experimental techniques, ... -
Catalytic transfer hydrogenation of furfural to furfuryl alcohol over calcined MgFe hydrotalcites
Maderuelo Solera, Rocío; Lopez Asencio, Raquel; Cecilia-Buenestado, Juan Antonio; Jiménez-Gómez, Carmen Pilar; Garcia-Sancho, Cristina; Moreno-Tost, Ramon; Maireles-Torres, Pedro Jesús[et al.] (Elsevier B.V., 2019-11-07)
Catalytic transfer hydrogenation is an alternative catalytic approach for the reduction of carbonyl groups, instead of the use of dihydrogen gas. In this sense, a series of catalysts has been prepared by thermal treatment ... -
Influence of morphology of zirconium-doped mesoporous silicas on 5-hydroxymethylfurfural production from mono-, di- and polysaccharides
Mérida Morales, Sandra; Garcia-Sancho, Cristina; Oregui-Bengoechea, Mikel; Ginés-Molina, María José; Cecilia-Buenestado, Juan Antonio; Arias, Pedro Luis; Moreno-Tost, Ramon; Maireles-Torres, Pedro Jesús[et al.] (Elsevier B.V., 2020-02-21)
Different zirconium-doped mesoporous silicas (Zr-KIT-6, Zr-SBA-15, Zr-MCM-41 and Zr-HMS) were synthesized and evaluated in the glucose dehydration to 5-hydroxymethylfurfural (HMF). A Si/Zr molar ratio of 5 was chosen for ... -
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; Garcia-Sancho, Cristina; Moreno-Tost, Ramon; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (MDPI, 2019-02-14)
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), ... -
Influence of the Incorporation of Basic or Amphoteric Oxides on the Performance of Cu-Based Catalysts Supported on Sepiolite in Furfural Hydrogenation
Guerrero-Torres, Antonio; Jiménez-Gómez, Carmen Pilar; Cecilia-Buenestado, Juan Antonio; Garcia-Sancho, Cristina; Quirante-Sanchez, Jose Joaquin; Merida-Robles, Josefa Maria; Maireles-Torres, Pedro Jesús[et al.] (MDPI, 2019-03-31)
Cu-based catalysts supported on sepiolite have been tested in vapor-phase hydrogenation of furfural. The incorporation of basic or amphoteric metal oxides (magnesium oxide, zinc oxide, or cerium oxide) improves the catalytic ... -
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, Maria Concepcion; Larrubia-Vargas, María Ángeles; Garcia-Sancho, Cristina; Maireles-Torres, Pedro Jesús; Moreno-Tost, Ramon[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 ... -
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; Garcia-Sancho, Cristina; Moreno-Tost, Ramon; 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; Garcia-Sancho, Cristina; Garcia-Mateos, Francisco Jose; Rosas-Martinez, Juana Maria; Moreno-Tost, Ramon; 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 ... -
Production of Biofuels by 5-Hydroxymethylfurfural Etherification Using Ion-Exchange Resins as Solid Acid Catalysts
Torres-Olea, Benjamín; Fúnez Núñez, Inmaculada; Garcia-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramon; 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; Garcia-Sancho, Cristina; Maireles-Torres, Pedro Jesús; Merida-Robles, Josefa Maria; Moreno-Tost, Ramon[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; Garcia-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramon; 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; Garcia-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 ... -
Synthesis of Porous Clay Heterostructures Modified with SiO2–ZrO2 Nanoparticles for the Valorization of Furfural in One-Pot Process
Essih, Salima; Cecilia-Buenestado, Juan Antonio; Jiménez-Gómez, Carmen Pilar; Garcia-Sancho, Cristina; Garcia-Mateos, Francisco Jose; Rosas-Martinez, Juana Maria; Moreno-Tost, Ramon; 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 the selectivity of Cu-based catalysts in the furfural hydrogenation reaction: Influence of the morphology of the silica support
Jiménez-Gómez, Carmen Pilar; Cecilia-Buenestado, Juan Antonio; Alba Rubio, Ana Carolina; Cassidy, Andrea; Moreno-Tost, Ramon; Garcia-Sancho, Cristina; Maireles-Torres, Pedro Jesús[et al.] (Elsevier, 2022)
Cu nanoparticles were incorporated on different porous silica supports (commercial silica, SBA-15 synthesized both at room temperature and under hydrothermal conditions, and mesocellular foam) by the strong electrostati ... -
The Role of Copper in the Hydrogenation of Furfural and Levulinic Acid
Garcia-Sancho, Cristina; Merida-Robles, Josefa Maria; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramon; Maireles-Torres, Pedro Jesús (IOAP-MDPI, 2023-01-26)
Currently, there is a great interest in the development of sustainable and green technologies for production of biofuels and chemicals. In this sense, much attention is being paid to lignocellulosic biomass as feedstock, ...