Ara es mostren els items 10-27 de 27

  • Influence of different palladium precursors on the properties of solution-combustion-synthesized palladium/ceria catalysts for methane combustion 

    Colussi, Sara; Gayen, Arup; Boaro, Marta; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-07-01)
    Article
    Accés obert
    A series of Pd/CeO2 catalysts was prepared by solution combustion synthesis (SCS) using different Pd precursors. The powders were characterized by complementary techniques such as BET surface area measurements, X-Ray ...
  • Methanol steam reforming behavior of copper impregnated over CeO2-ZrO2 derived from a surfactant assisted coprecipitation route 

    Llorca Piqué, Jordi; Colussi, Sara; Domínguez Escalante, Montserrat; Trovarelli, Alessandro; Gayen, Arup; Das, Dipak (2015-09-07)
    Article
    Accés obert
    A series of ceria-zirconia solid solutions has been prepared by a surfactant assisted coprecipitation method. After impregnation of copper, their activities have been assessed for methanol steam reforming. The results ...
  • Mixed iron-erbium vanadate NH3-SCR catalysts 

    Casanova, Marzia; Llorca Piqué, Jordi; Schermanz, Karl; Trovarelli, Alessandro; Sagar, Amod (2015-03-01)
    Article
    Accés restringit per política de l'editorial
    A series of SCR catalysts of mixed iron-erbium vanadates supported on TiO2-WO3-SiO2 were prepared and their reduction, textural, structural and morphological properties characterized by temperature programmed reduction, ...
  • New insights into the dynamics that control the activity of ceria-zirconia solid solutions in thermochemical water splitting cycles 

    Pappacena, Alfonsina; Rancan, M.; Armelao, Lidia; Llorca Piqué, Jordi; Ge, W.; Ye, B.; Lucotti, A.; Trovarelli, Alessandro; Boaro, Marta (2017-08-24)
    Article
    Accés restringit per política de l'editorial
    The reactivity of a ceria-rich Ce0.85Zr0.15O2 solid solution toward the thermochemical water splitting process (TWS) was studied over repeated H2/H2O redox cycles. The structural and surface modifications after treatment ...
  • Origin of high activity and selectivity of CuO/CeO2 catalysts prepared by solution combustion synthesis in CO-PROX reaction 

    Barbato, P.S.; Colussi, Sara; Di Benedetto, A.; Landi, Giada; Lisi, L.; Llorca Piqué, Jordi; Trovarelli, Alessandro (2016-06-23)
    Article
    Accés restringit per política de l'editorial
    A CuO/CeO2 catalyst with 4 wt % CuO nominal content has been prepared by solution combustion synthesis (SCS) and characterized by ICP-MS, BET surface area analysis, XPS, HRTEM, and H-2, and/or CO TPR. The catalyst, showing ...
  • PdO hydrate as an efficient and recyclable catalyst for the Suzuki-Miyaura reaction in water/ethanol at room temperature 

    Amoroso, Francesco; Colussi, Sara; Del Zotto, Alessandro; Llorca Piqué, Jordi; Trovarelli, Alessandro (2011-02-12)
    Article
    Accés restringit per política de l'editorial
    PdO·1.4H2O 1 prepared in our laboratories, as well as commercially available palladium oxides 2–4 have been found to act as efficient catalysts for the Suzuki–Miyaura reaction in ethanol/water mixture at room temperature ...
  • Room temperature oxidation of formaldehyde on Pt-based catalysts: A comparison between ceria and other supports (TiO2, Al2O3 and ZrO2) 

    Colussi, Sara; Boaro, Marta; De Rogatis, Loredana; Pappacena, Alfonsina; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-09-15)
    Article
    Accés obert
    Platinum-based catalysts for the room temperature removal of formaldehyde are prepared on ceria and other supports (TiO2, Al2O3 and ZrO2) for comparison, starting from chloride and nitrate precursors. The behaviour towards ...
  • Room-temperature Suzuki-Miyaura reaction catalyzed by Pd supported on rare earth oxides: Influence of the point of zero charge on the catalytic activity 

    Amoroso, Francesco; Colussi, Sara; del Zotto, Alessandro; Llorca Piqué, Jordi; Trovarelli, Alessandro (2013-06-01)
    Article
    Accés restringit per política de l'editorial
    Five Pd/REO (rare earth oxide) compounds (Pd/La2O3, Pd/CeO2, Pd/Pr6O11, Pd/Sm2O 3, and Pd/Gd2O3) have been successfully used as precatalysts in the Suzuki-Miyaura C-C cross-coupling reaction of aryl bromides with arylboronic ...
  • Shape-dependent activity of ceria in soot combustion 

    Aneggi, Eleonora; Wiater, Dawid; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-01)
    Article
    Accés restringit per política de l'editorial
    In this study, a series of conventional polycrystalline ceria and single-crystalline ceria nanorods and nanocubes were prepared by hydrothermal methods, and their structural, redo; and morphological properties were ...
  • Silver-based catalytic materials for the simultaneous removal of soot and NOx 

    Castoldi, Lidia; Aneggi, Eleonora; Matarrese, Roberto; Bonzi, Rossella; Llorca Piqué, Jordi; Trovarelli, Alessandro; Lietti, Luca (2015-12-01)
    Article
    Accés restringit per política de l'editorial
    The potential of silver-based catalysts in the simultaneous removal of particulate matter (soot) and NOxis investigated in this work and compared with that of a model Pt-Ba/Al2O3catalyst. The Ag (5 wt%) - Ba (10 wt%)/MO ...
  • 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 ...
  • Structural and electrocatalytic properties of molten core Sn@SnOx nanoparticles on ceria 

    Bardini, Luca; Pappacena, Alfonsina; Domínguez Escalante, Montserrat; Llorca Piqué, Jordi; Boaro, Marta; Trovarelli, Alessandro (2016-11-15)
    Article
    Accés restringit per política de l'editorial
    The morphological and chemical modifications following reduction in hydrogen at 873 K of stannic oxide deposited on ceria particles were studied in order to gain insights into the nature of Ce-Sn interaction under reducing ...
  • Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd–PdO transformation hysteresis 

    Colussi, Sara; Trovarelli, Alessandro; Vesselli, Erik; Baraldi, Alessandro; Comelli, Giovanni; Groppi, Gianpiero; Llorca Piqué, Jordi (2010)
    Article
    Accés restringit per política de l'editorial
    Catalytic combustion of methane has been studied for many years due to its applications in power generation and emissions clean-up. Among different catalysts, Pd-based materials are the most active for the catalytic ...
  • Surface faceting and reconstruction of ceria nanoparticles 

    Yang, Chengwu; Yu, Xiaojuan; Heissler, Stefan; Nefedov, Alexei; Colussi, Sara; Llorca Piqué, Jordi; Trovarelli, Alessandro; Wang, Yuemin; Woell, Christof (2017-01-02)
    Article
    Accés restringit per política de l'editorial
    The surface atomic arrangement of metal oxides determines their physical and chemical properties, and the ability to control and optimize structural parameters is of crucial importance for many applications, in particular ...
  • The effect of ceria on the dynamics of CuO-Cu2O redox transformation: CuO-Cu2O hysteresis on ceria 

    Colussi, Sara; Amoroso, Francesco; Katta, Lakshmi; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-06-01)
    Article
    Accés restringit per política de l'editorial
    CuO supported on ceria and alumina is prepared by incipient wetness impregnation and its redox behavior is investigated by means of XRD, XPS and TPO experiments. CuO on ZrO2 and on ceria-zirconia are also synthesized for ...
  • The formation of nanodomains of Ce6O11 in ceria catalyzed soot combustion 

    Aneggi, Eleonora; Jiménez Divins, Nuria; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-04)
    Article
    Accés restringit per política de l'editorial
    The behavior of a series of CeO2 catalysts in soot combustion reaction was investigated by HRTEM and XPS. It is shown that nanodomains of reduced ceria in the form of Ce6O11 develop during reaction under oxygen-containing ...
  • The influence of nano-architectured CeOx supports in RhPd/CeO2 for the catalytic ethanol steam reforming reaction 

    Jiménez Divins, Nuria; Casanovas, A.; Xu, W.; Senanayake, S. D; Wiater, Dawid; Trovarelli, Alessandro; Llorca Piqué, Jordi (2015-09-15)
    Article
    Accés obert
    The ethanol steam reforming (ESR) reaction has been tested over RhPd supported on polycrystalline ceria in comparison to structured supports composed of nanoshaped CeO2 cubes and CeO2 rods tailored toward the production ...
  • Water splitting reaction on Ce0.15Zr0.85O2 driven by surface heterogeneity 

    Pappacena, Alfonsina; Boaro, Marta; Armelao, Lidia; Llorca Piqué, Jordi; Trovarelli, Alessandro (2016)
    Article
    Accés obert
    Ce0.15Zr0.85O2 was investigated in the two-step water splitting reaction. High-temperature treatment in N-2 induced compositional and structural heterogeneities which contributed to a six-fold increase of H-2 yield after ...