Enviaments recents

  • Water-gas-shift over metal-free nanocrystalline ceria: an experimental and theoretical study 

    Guild, Curtis J.; Vovchok, Dimitriy; Kriz, David A.; Bruix, Albert; Hammer, Bjork; Llorca Piqué, Jordi; Xu, Wenquian; El-Sawy, Abdelhamid; Biswas, Sourav; Rodriguez, Jose A.; Senanayake, S. D; Suib, Steven L. (2017-04-21)
    Article
    Accés restringit per política de l'editorial
    A tandem experimental and theoretical investigation of a mesoporous ceria catalyst reveals the properties of the metal oxide are conducive for activity typically ascribed to metals, suggesting reduced Ce3+ and oxygen ...
  • New alternative energy pathway for chemical pulp mills: from traditional fibers to methane production 

    Rodriguez Chiang, Lourdes Maria; Vanhatalo, Kari; Llorca Piqué, Jordi; Dahl Olli, Peka (2017-07-01)
    Article
    Accés obert
    Chemical pulp mills have a need to diversify their end-product portfolio due to the current changing bio-economy. In this study, the methane potential of brown, oxygen delignified and bleached pulp were evaluated in order ...
  • Mn3O4@CoMn2O4-CoxOy nanoparticles : partial cation exchange synthesis and electrocatalytic properties toward the oxygen reduction and evolution reactions 

    Luo, Zhishan; Irtem, Erdem; Ibañez, María; Nafria Soler, Raquel; Martí Sanchez, Sara; Genç, Aziz; de la Mata, María; Liu, Yu; Cadavid, Doris; Llorca Piqué, Jordi; Arbiol, Jordi; Andreu, Teresa; Morante Lleonart, Joan Ramon; Cabot Codina, Andreu (2016-07-13)
    Article
    Accés restringit per política de l'editorial
    Mn3O4@CoMn2O4 nanoparticles (NPs) were produced at low temperature and ambient atmosphere using a one -pot two-step synthesis protocol involving the cation exchange of Mn by Co in preformed Mn3O4 NPs. Selecting the proper ...
  • 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 ...
  • Role of the synthesis route on the properties of hybrid LDH-graphene as basic catalysts 

    Alvarez, Mayra G; Tichit, Didier; Medina Cabello, Francesc; Llorca Piqué, Jordi (2017-02-28)
    Article
    Accés obert
    Layered double hydroxides (LDH or HT) or their derived mixed oxides present marked acid-base properties useful in catalysis, but they lead to agglomerate inducing a weak accessibility to the active sites. In this study we ...
  • Study of Cu-Zn and Au/TiO2 catalysts on anodized aluminum monoliths for hydrogen generation and purification 

    Adrover, E; Boldrini, D.; Divins, N.J.; Casanovas Hoste, Adrià; Tonetto, G.; López, Eduardo; Llorca Piqué, Jordi (2016-08)
    Article
    Accés restringit per política de l'editorial
    This work reports the preparation of Cu-Zn and Au/TiO2 catalysts on anodized aluminum monoliths (AAM). The structured catalysts were studied for the generation of H-2 by methanol steam reforming (MSR) and its purification ...
  • Visible light-driven H2 production over highly dispersed Ruthenia on Rutile TiO2 nanorods 

    Thuy Duong, Nguyen-Phan; Luo, Si; Vovchock, Dimitriy; Llorca Piqué, Jordi; Graciani, Jesus; Fernandez Sanz, Javier; Sallis, Shawn; Xu, Wenquian; Bai, jianming; Piper, Louis F. J.; Polyansky, Dmitri E.; Fujita, Etsuko; Senanayake, S. D; Stacchiola, Dario J. (2016-01)
    Article
    Accés obert
    The immobilization of miniscule quantities of RuO2 (~0.1%) onto one-dimensional (1D) TiO2 nanorods (NRs) allows H2 evolution from water under visible light irradiation. Rod-like rutile TiO2 structures, exposing preferentially ...
  • 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 ...
  • Selective liquid phase benzyl alcohol oxidation over Cu-loaded LaFeO3 perovskite 

    Mistri, Rajib; Das, Dipak; Llorca Piqué, Jordi; Domínguez Escalante, Montserrat; Mandal, Tapas Kumar; Mohanty, Paritosh; Ray, Bidhan Chandra; Gayen, Arup (2016)
    Article
    Accés restringit per política de l'editorial
    Copper loaded LaMO3 (M = Mn, Fe and Co) perovskites have been synthesized by a single-step solution combustion method. These materials have been investigated for liquid phase oxidation of benzyl alcohol using tertiary butyl ...
  • Finding a suitable catalyst for on-board ethanol reforming using exhaust heat from an internal combustion engine 

    Casanovas Grau, Albert; Jiménez Divins, Nuria; Rejas García, Albert; Bosch Tous, Ricardo; Llorca Piqué, Jordi (2017-05-11)
    Article
    Accés restringit per política de l'editorial
    Ethanol steam reforming with pure ethanol and commercial bioethanol (S/C = 3) was carried out inside the housing of the exhaust gas pipe of a gasoline internal combustion engine (ICE) by using exhaust heat (610–620 °C). ...

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