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Listar por autor "Llabrés i Xamena, Francesc Xavier"

Mostrando ítems 21-40 de 46

Metal Organic Framework Catalysis: Quo vadis?

Gascon, Jorge; Corma Canós, Avelino; Kapteijn, Freek; Llabrés i Xamena, Francesc Xavier (American Chemical Society, 2014)

In this perspective, we highlight the main opportunities of metal organic frameworks (MOFs) as heterogeneous catalysts. Along with our personal view on the most promising catalytic applications, the most important issues ...
Metal organic framework nanosheets in polymer composite materials for gas separation

Ródenas Torralba, Tania; Luz Mínguez, Ignacio; Prieto González, Gonzalo; Seoane, Beatriz; Miro, Hozanna; Corma Canós, Avelino; Kapteijn, Freek; Llabrés i Xamena, Francesc Xavier; Gascon, Jorge (Nature Publishing Group, 2015)

[EN] Composites incorporating two-dimensional nanostructures within polymeric matrices have potential as functional components for several technologies, including gas separation. Prospectively, employing metal-organic ...
Metal-organic and covalent organic frameworks as single-site catalysts

Rogge, S. M. J.; Bavykina, Anastasiya; Hajek, J.; García Gómez, Hermenegildo; Olivos-Suarez, A. I.; Sepulveda-Escribano, A.; Vimont, A.; Clet, G.; Bazin, P.; Kapteijn, Freek; Daturi, M.; Ramos-Fernandez, Enrique V.; Llabrés i Xamena, Francesc Xavier; Van Speybroeck, Veronique; Gascon, Jorge (The Royal Society of Chemistry, 2017)

[EN] Heterogeneous single-site catalysts consist of isolated, well-defined, active sites that are spatially separated in a given solid and, ideally, structurally identical. In this review, the potential of metal-organic ...
MIL-101 as Reusable Solid Catalyst for Autoxidation of Benzylic Hydrocarbons in the Absence of Additional Oxidizing Reagents

Santiago Portillo, Andrea; Navalón Oltra, Sergio; García Cirujano, Francisco; Llabrés i Xamena, Francesc Xavier; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (American Chemical Society, 2015-06)

Materiaux de l Institute Lavosier-101 (MIL-101) promotes benzylic oxidation of hydrocarbons exclusively by molecular oxygen in the absence of any other oxidizing reagent or initiator. Using indane as model compound, the ...
MOF-808 as a Highly Active Catalyst for the Diastereoselective Reduction of Substituted Cyclohexanones

Mautschke, Hans Hilmar; Llabrés i Xamena, Francesc Xavier (MDPI AG, 2022-10)

[EN] Zr-containing MOF-808 is an excellent heterogeneous catalyst for the diastereoselective Meerwein-Ponndorf-Verley reduction of substituted cyclohexanones. The presence of substituents at the 2 or 3 position of the ...
MOFs as multifunctional catalysts: One-pot synthesis of menthol from citronellal over a bifunctional MIL-101 catalyst

García Cirujano, Francisco; Llabrés i Xamena, Francesc Xavier; Corma Canós, Avelino (Royal Society of Chemistry, 2012)

A bifunctional MOF catalyst containing coordinatively unsaturated Cr3+ sites and palladium nanoparticles (Pd@MIL-101) has been used for the cyclization of citronellal to isopulegol and for the one-pot tandem isomerizatio ...
MOFs as Multifunctional catalysts: Synthesis of secondary arylamines, quinolines, pyrroles and arylpyrrolidines over bifunctional MIL-101

García Cirujano, Francisco; Leyva Perez, Antonio; Corma Canós, Avelino; Llabrés i Xamena, Francesc Xavier (Wiley-VCH Verlag, 2013-02)

Bifunctional MIL-101 MOFs containing Lewis acid Cr3+ sites and Pd or Pt hydrogenation/reduction centers, either as isolated metal complexes or in the form of encapsulated metal nanoparticles, have shown to be highly active ...
Multifunctional, Defect-Engineered Metal-Organic Frameworks with Ruthenium Centers: Sorption and Catalytic Properties

Kozachuk, O.; Luz Mínguez, Ignacio; Llabrés i Xamena, Francesc Xavier; Noei, H.; Kauer, M.; Albada, H.B.; Bloch, E.D.; Marler, B.; Wang, Y.M.; Muhler, M.; Fischer, R.A. (Wiley, 2014-07)

A mixed-linker solid-solution approach was employed to modify the metal sites and introduce structural defects into the mixed-valence Ru-II/III structural analogue of the well-known MOF family [M-3(II,II)(btc)(2)] (M= Cu, ...
Multifunktionale, Defekt-manipulierte Metall-organische Gerüste mit Rutheniumzentren: Sorption und katalytische Eigenschaften

Kozachuk, Olesia; Luz Mínguez, Ignacio; Llabrés i Xamena, Francesc Xavier; Noei, Heshmat; Kauer, Max; Bauke Albada, H.; Bloch, Eric D.; Marler, Bernd; Wang, Yuemin; Muhler, Martin; Fischer, Roland A. (Wiley, 2014-07-01)

[DE] Das Konzept der “festen Lösungen mit gemischten Linkern” (mixed-linker solid solution concept) ist angewendet worden, um die Metallzentren des gemischtvalenten RuII/III-Analogons der bekannten Familie der [M3II,II(btc)2]-MOFs ...
Nature of active sites on UiO-66 and beneficial influence of water in the catalysis of Fischer esterification

Caratelli, Chiara; Hajek, J.; García Cirujano, Francisco; Warroquier, M.; Llabrés i Xamena, Francesc Xavier; Van Speybroeck, Veronique (Elsevier, 2017)

[EN] Zirconium terephthalate UiO-66 type metal organic frameworks (MOFs) are known to be highly active, stable and reusable catalysts for the esterification of carboxylic acids with alcohols. Moreover, when defects are ...
One-Step Chemo-, Regio- and Stereoselective Reduction of Ketosteroids to Hydroxysteroids over Zr-Containing MOF-808 Metal-Organic Frameworks

Mautschke, H.-H.; Llabrés i Xamena, Francesc Xavier (John Wiley & Sons, 2021-07-21)

[EN] Zr-containing MOF-808 is a very promising heterogeneous catalyst for the selective reduction of ketosteroids to the corresponding hydroxysteroids through a Meerwein-Ponndorf-Verley (MPV) reaction. Interestingly, the ...
Pd@UiO-66-Type MOFs Prepared by Chemical Vapor Infiltration as Shape-Selective Hydrogenation Catalysts

Luz Mínguez, Ignacio; Roesler, Christoph; Epp, Konstantin; Llabrés i Xamena, Francesc Xavier; Fischer, Roland A. (Wiley, 2015-08)

[EN] Host-guest inclusion properties of UiO-66 and UiO-67 metal-organic frameworks have been studied using ferrocene (FeCp2) as probe molecule. According to variable-temperature solid-state H-1 and C-13 CP-MAS-NMR, two ...
Proton Transport through CPO-27 type Metal Organic Frameworks

Solis Díaz, Cecilia; Palaci, D.; Llabrés i Xamena, Francesc Xavier; Serra Alfaro, José Manuel (American Chemical Society, 2014-09-18)

In this work we studied the robustness of Ni-CPO-27 and Mg-CPO-27 metal organic frameworks (MOFs) upon cold uniaxial pressing and thermal cycling in dry and wet Ar/H-2. The preparation and operation limits for each material ...
Revalorización de productos de la biomasa mediante catalizadores metal-orgánicos de Zr y Hf

Guarinós Mediavilla, José María (Universitat Politècnica de València, 2019-10-28)

[ES] El enorme interés que existe en la actualidad por obtener gran cantidad de compuestos químicos mediante vías alternativas a la petroquímica ha impulsado el estudio de la valorización de la biomasa utilizándola como ...
Ruthenium Metal–Organic Frameworks with Different Defect Types: Influence on Porosity, Sorption, and Catalytic Properties

Zhang, Wenhua; Kauer, Max; Halbherr, Olesia; Epp, Konstantin; Guo, Penghu; Gonzalez, Miguel I.; Xiao, Dianne J.; Wiktor, Christian; Llabrés i Xamena, Francesc Xavier; Woell, Christof; Wang, Yuemin; Muhler, Martin; Fischer, Roland A. (Wiley, 2016-09)

By employing the mixed-component, solid-solution approach, various functionalized ditopic isophthalate (ip) defect-generating linkers denoted 5-X-ipH(2), where X = OH (1), H (2), NH2 (3), Br (4), were introduced into the ...
Selective aerobic oxidation of activated alkanes with MOFs and their use for epoxidation of olefins with oxygen in a tandem reaction

Luz Mínguez, Ignacio; Leon Peris, Adela; Boronat Zaragoza, Mercedes; Llabrés i Xamena, Francesc Xavier; Corma Canós, Avelino (Royal Society of Chemistry, 2013)

[EN] MOFs with Cu2+ centers linked to four nitrogen atoms from azaheterocyclic compounds, i.e., pyrimidine [Cu(2-pymo)(2)] and imidazole [Cu(im)(2)], are active catalysts for aerobic oxidation of activated alkanes, such ...
Selective Aerobic Oxidation of Cumene to Cumene Hydroperoxide over Mono- and Bimetallic Trimesate Metal Organic Frameworks Prepared by a Facile Green Aqueous Synthesis

Nowacka, Anna Elzbieta; Briantais, P.; PRESTIPINO, CARMELO; Llabrés i Xamena, Francesc Xavier (American Chemical Society, 2019-04-15)

[EN] Co-Ni and Mn-Ni bimetallic trimesate MOFs prepared by a fast aqueous synthesis method are excellent and reusable catalysts for the selective aerobic oxidation of cumene to cumene hydroperoxide (CHP). Isolation of Co2+ ...
Síntesis de acetales a partir de compuestos derivados de biomasa empleando MOFs de Zr como catalizadores heterogéneos

Ródenas Espada, Miguel (Universitat Politècnica de València, 2020-10-16)

[ES] El desarrollo de procesos sintéticos que emplean reactivos no derivados de la petroquímica es un tema candente en la actualidad. La creciente necesidad de reducir el empleo de recursos fósiles no renovables ha impulsado ...
Síntesis de MXenos y su actividad catalítica en la reacción de oxidación de estireno a benzaldehído.

Seva Rejón, Maria Dolores (Universitat Politècnica de València, 2022-11-04)

[ES] Recientemente, ha surgido una nueva familia de materiales 2D, conocidos como MXenos, que están basados en carburos laminares de metales de transición. Debido a sus excepcionales propiedades en términos de multifuncionalidad, ...
The oxamate route, a versatile post-functionalization for metal incorporation in MIL-101(Cr): Catalytic applications of Cu, Pd, and Au

Juan Alcañiz, Jana; Ferrando-Soria, Jesus; Luz Mínguez, Ignacio; Serra-Crespo, Pablo; Skupien, Emmanuel; Santos, Vera P.; Pardo, Emilio; Llabrés i Xamena, Francesc Xavier; Kapteijn, Freek; Gascon, Jorge (Elsevier, 2013-11)

A new consecutive post-functionalization method has been developed for the inclusion of additional metal functionalities in Metal Organic Frameworks (MOFs) through oxamate as chelating agent. This may result in catalytic ...