Enviaments recents

  • CO oxidation and COPrOx over preformed Au nanoparticles supported over nanoshaped CeO2 

    Soler Turu, Lluís; Casanovas Grau, Albert; Urrich, Aitor; Angurell Purroy, Inmaculada; Llorca Piqué, Jordi (2016-02-10)
    Article
    Accés restringit per política de l'editorial
    Au/CeO2 (0.25% wt. Au) catalysts were prepared by anchoring preformed Au nanoparticles over ceria polycrystals, cubes and rods and tested in the oxidation of CO and COPrOx. The use of preformed Au nanoparticles assured a ...
  • Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H-2 production 

    Thuy Duong, Nguyen-Phan; Luo, Si; Vovchok, Dimitriy; Llorca Piqué, Jordi; Sallis, Shawn; Kattel, Shyam; Xu, Wenqian; Piper, Louis F. J.; Poliansky, Dimitry E.; Senanayake, Sanjaya D.; Stacchiola, Darío J.; Rodriguez, Jose A. (2016-06-21)
    Article
    Accés restringit per política de l'editorial
    Three-dimensional (3D) monodispersed sea urchin-like Ru-doped rutile TiO2 hierarchical architectures composed of radially aligned, densely-packed TiO2 nanorods have been successfully synthesized via an acid-hydrothermal ...
  • First tests of the applicability of gamma-ray imaging for background discrimination in time-of-flight neutron capture measurements 

    Perez Magan, D. L.; Caballero Ontanaya, L.; Domingo Pardo, César; Agramunt Ros, Jorge; Albiol, F.; Casanovas Grau, Albert; Gonzalez, A.; Guerrero, C.; Lerendegui Marco, J.; Tarifeño Saldivia, Ariel Esteban (2016-07-01)
    Article
    Accés obert
    In this work we explore for the first time the applicability of using gamma-ray imaging in neutron capture measurements to identify and suppress spatially localized background. For this aim, a pinhole gamma camera is ...
  • Dynamic modeling and controllability analysis of an ethanol reformer for fuel cell application 

    García, Vanesa Mariel; Lopez Null, Eduardo; Serra, Maria; Llorca Piqué, Jordi; Riera Colomer, Jordi (2010-09)
    Article
    Accés obert
    This work presents a controllability analysis of a low temperature ethanol reformer based on a cobalt catalyst for fuel cell application. The study is based on a nonlinear dynamic model of ...
  • In situ photoelectron spectroscopy study of ethanol steam reforming over RhPd nanoparticles and RhPd/CeO2 

    Jiménez Divins, Nuria; Llorca Piqué, Jordi (2016-05-25)
    Article
    Accés restringit per política de l'editorial
    In situ X-ray photoelectron spectroscopy (XPS) was carried out over model Rh0.5Pd0.5 nanoparticles and Rh0.5Pd0.5 nanoparticles supported on CeO2 following exposure to oxygen at 573-823 K, to hydrogen at 573 K (activation ...
  • Silicone microreactors for the photocatalytic generation of hydrogen 

    Castedo Rodríguez, Alejandra; Mendoza Gómez, Ernesto; Angurell Purroy, Inmaculada; Llorca Piqué, Jordi (2016-09-15)
    Article
    Accés restringit per política de l'editorial
    A silicone microreactor with 500 mu m-width microchannels coated with a Au/TiO2 photocatalyst was manufactured and tested for the photocatalytic generation of hydrogen from gaseous water-ethanol mixtures under dynamic ...
  • Study of the effect of the chromophore and nuclearity on the aggregation and potential biological activity of gold(I) alkynyl complexes 

    Gavara, Raquel; Aguilo, Elisabet; Schur, Julia; Llorca Piqué, Jordi; Ott, Ingo; Rodríguez Raurell, Laura (2016-05-01)
    Article
    Accés restringit per política de l'editorial
    The synthesis and characterization of four organometallic gold(I) complexes containing different water soluble phosphanes (TPPTS, PTA and DAPTA) and chromophoric units (4-pyridylethynyl and propargyloxycoumarin) is here ...
  • Magnetite-supported palladium single-atoms do not catalyse the hydrogenation of alkenes but small clusters do 

    Rosell, Marta D.; Caparrós, Francisco J.; Angurell Purroy, Inmaculada; Müller Jevenois, Guillermo; Llorca Piqué, Jordi; Seco García, Miquel Angel; Rosell, Oriol (2016-01-01)
    Article
    Accés restringit per política de l'editorial
    The activity of supported noble metal catalysts strongly depends on the particle size. The ultimate small-size limit is the single-atom catalyst (SAC), which maximizes the catalytic efficiency in the majority of the examples. ...
  • Simultaneous removal of soot and NOx, over K- and Ba-doped ruthenium supported catalysts 

    Matarrese, Roberto; Aneggi, Eleonora; Castoldi, Lidia; Llorca Piqué, Jordi; Trovarelli, Alessandro; Lietti, Luca (2016-06-01)
    Article
    Accés restringit per política de l'editorial
    Ruthenium-based materials are investigated for the simultaneous removal of soot and NOx and their behavior is compared with that of model Pt-Ba/Al2O3 and Pt-K/Al2O3 catalysts.; The materials, 1%wt Ru-10%wt AM/MO (AM = Ba ...
  • Bio-nanohybrid catalysts based on L-leucine immobilized in hydrotalcite and their activity in aldol reaction 

    Crivoi, Dana-Georgiana; Miranda, Ronald Alexander; Finocchio, Elisabetta; Llorca Piqué, Jordi; Ramis, Gianguido; Sueiras, Jesus Eduardo; Segarra González, Anna Maria; Medina Mena, Francisco (2016-06-05)
    Article
    Accés restringit per política de l'editorial
    Nanohybrid materials based on L-leucine (L-Leu) and hydrotalcites (HT) were prepared by the ion exchange and reconstruction method, under mild synthesis conditions. The location, amount and the form of the immobilized L-Leu ...

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