A5073126664- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysts for Methane Reforming
- Nanomaterials for catalytic reactions
- Catalysis and Hydrodesulfurization Studies
- Zeolite Catalysis and Synthesis
- Catalysis for Biomass Conversion
- Mesoporous Materials and Catalysis
- Asymmetric Hydrogenation and Catalysis
- Carbon dioxide utilization in catalysis
- Oxidative Organic Chemistry Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Nanocluster Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Chemical Synthesis and Reactions
- Polyoxometalates: Synthesis and Applications
- Transition Metal Oxide Nanomaterials
- Covalent Organic Framework Applications
- Ammonia Synthesis and Nitrogen Reduction
- Copper-based nanomaterials and applications
- Catalytic Cross-Coupling Reactions
- Advanced Chemical Physics Studies
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Photocatalysis Techniques
Consejo Superior de Investigaciones Científicas
2016-2025
Universitat Politècnica de València
2016-2025
Instituto de Tecnología Química
2016-2025
University of Puerto Rico at Carolina
2015-2021
Centro Médico Sanitas Valencia
2016-2021
Unidades Centrales Científico-Técnicas
2020
Tokyo Metropolitan University
2014
Universidad de Cádiz
2008
Universitat de Barcelona
2004-2007
Instituto de Catálisis y Petroleoquímica
2002
Ceria nanoparticles as a support stabilize positive gold species and provide oxygen vacancies. The resulting solid exhibits an exceedingly high efficiency for the solventless aerobic oxidation of primary secondary alcohols to carbonyl compounds (see picture). selective is one most challenging reactions in green chemistry.1–4 An ideal process should involve highly active recyclable catalyst that able work at atmospheric pressure presence absence solvents bases.5 Stoichiometric oxidations...
The smaller the better: Depositing gold on nanocrystalline particles of cerium oxide, instead a regular oxide support, increases activity resulting catalyst by two orders magnitude for selective oxidation CO to CO2, even in presence H2 (shown schematically). Supporting information this article is available WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z53570_s.pdf or from author. Please note: publisher not responsible content functionality any supporting supplied authors. Any...
Commercial P25 modified by Au-Cu alloy nanoparticles as thin film exhibits, for CO2 reduction water under sun simulated light, a rate of methane production above 2000 μmol (g photocatalyst)(-1) h(-1). Although evolution hydrogen is observed and O2 ethane detected, the selectivity conduction band electrons formation almost complete, about 97%. This photocatalytic behavior completely different from that measured Au/P25 (hydrogen evolution) Cu/P25 (lower activity, but similar selectivity)....
Golden distinction: With an Au/TiO2 catalyst, the formation of condensation products during hydrogenation aromatic nitro compounds is avoided. Macrokinetic experiments and in situ IR measurements, which showed that nitrosobenzene generated only small amounts hydroxylamine interact strongly with catalyst surface, led to proposal a novel reaction sequence (see figure). Supporting information for this article available on WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z700823_s.pdf or...
It is generally accepted that good hydrogenation noble and nonnoble metal catalysts such as Pt, Ru, or Ni are not chemoselective for of nitro groups in substituted aromatic molecules. We have found it possible to transform nonchemoselective into highly by controlling the coordination surface atoms while introducing a cooperative effect between properly selected support. Thus, general can be prepared generating nanosized crystals metals on TiO 2 support decorating exposed (111) (100) crystal...
Nanoparticles of gold on TiO2 are highly chemoselective for the reduction substituted nitroaromatics, such as nitrostyrene. By combining kinetics and in situ IR spectroscopy, it has been found that there is a preferential adsorption reactant catalyst through nitro group. studies nitrobenzene, styrene, nitrostyrene adsorption, together with quantum chemical calculations, show olefinic groups adsorb weakly Au(111) Au(001) surfaces, although stronger occurs low-coordinated atoms nanoparticles,...
Identification of active sites in heterogeneous metal catalysts is critical for understanding the reaction mechanism at molecular level and designing more efficient catalysts. Because their structural flexibility, subnanometric catalysts, including single atoms clusters with a few atoms, can exhibit dynamic evolution when interacting substrate molecules, making it difficult to determine catalytically sites. In this work, Pt containing selected types entities (from nanoparticles) have been...
Understanding the behavior and dynamic structural transformation of subnanometric metal species under reaction conditions will be helpful for understanding catalytic phenomena developing more efficient stable catalysts based on single atoms clusters. In this work, evolution stabilization Pt confined in MCM-22 zeolite has been studied by situ transmission electron microscopy (TEM). By correlating results from TEM studies obtained a continuous fix-bed reactor, it possible to delimitate factors...
The CO2 hydrogenation reaction to produce methanol holds great significance as it contributes achieving a CO2-neutral economy. Previous research identified isolated Cu+ species doping the oxide surface of Cu-MgO-Al2O3-mixed derived from hydrotalcite precursor active site in hydrogenation, stabilizing monodentate formate crucial intermediate synthesis. In this work, we present molecular-level understanding how water and hydroxyl groups play role facilitating spontaneous activation at sites...
Ceroxid-Nanopartikel als Träger stabilisieren positive Goldspezies und stellen Sauerstoff-Freistellen zur Verfügung. Der so erhaltene Feststoff katalysiert außergewöhnlich effizient die lösungsmittelfreie aerobe Oxidation primärer sekundärer Alkohole zu Carbonylverbindungen (siehe Bild).
The minute amount of hydrogen sulfate groups introduced into the graphene oxide (GO) obtained by Hummers oxidation graphite renders this material as a highly efficient, recyclable acid catalyst for ring opening epoxides with methanol and other primary alcohols nucleophile solvent.
Ein Au/TiO2-Katalysator vermeidet die Bildung von Kondensationsprodukten bei der Hydrierung aromatischer Nitroverbindungen. Anhand kinetischen Untersuchungen und In-situ-IR-Messungen, belegen, dass nur geringe Mengen an Nitrosobenzol erzeugt werden das Hydroxylamin stark mit Katalysatoroberfläche wechselwirken, wurde eine neuartige Reaktionssequenz postuliert (siehe Bild). Supporting information for this article is available on the WWW under...