Now showing items 1-20 of 46

  • 1-Butanol absorption in poly(styrene-divinylbenzene) ion exchange resins for catalysis 

    Perez Macia, Maria A; Curcó Cantarell, David; Bringue, Roger; Iborra, Monserrat; Rodriguez Ropero, F.; Van der Vegt, N.F.A.; Alemán Llansó, Carlos (2015-01-01)
    Article
    Open Access
    The swelling behaviour of poly(styrene-co-divinylbenzene), P(S-DVB), ion exchange resins in 1-butanol (BuOH) has been studied by means of atomistic classical molecular dynamics simulations (MD). The topological characteristics ...
  • A+B=0 reaction with different initial patterns 

    Sancho, Jose Maria; Romero, A. H.; Lindenberg, Katja; Sagués Mestre, Francesc; Reigada Sanz, R.; Lacasta Palacio, Ana María (American Chemical Society, 1996-10-10)
    Article
    Restricted access - publisher's policy
    We present a detailed study of the chemical reaction A + B f 0 in two dimensions for different initial distributions of reactants as characterized by the structure function. We argue that the long-wavelength components ...
  • Acetoacetate based thermosets prepared by dual-Michael addition reactions 

    Konuray, Ali Osman; Fernández Francos, Xavier; Ramis Juan, Xavier; Serra Albet, Maria Àngels (Multidisciplinary Digital Publishing Institute (MDPI), 2019-01-01)
    Article
    Open Access
    A novel set of dual-curable multiacetoacetate-multiacrylate-divinyl sulfone ternary materials with versatile and manipulable properties are presented. In contrast to common dual-curing systems, the first stage polymer ...
  • Al2O3-supported Pt/Rh catalysts for NOx removal under lean conditions 

    Castoldi, Lidia; Matarrese, Roberto; Daturi, Marco; Llorca Piqué, Jordi; Lietti, Luca (2019-07-05)
    Article
    Restricted access - publisher's policy
    In this work the reactivity of Pt-Rh NOx storage-reduction (NSR) catalysts in the reduction of NOx under lean conditions is investigated. It is found that significant amounts of NOx are stored on both Rh- and Pt-based ...
  • Alcohols and bio-alcohols steam and autothermal reforming in a membrane reactor 

    Llorca Piqué, Jordi; Hedayati, Ali (2014-11-28)
    Part of book or chapter of book
    Restricted access - publisher's policy
    Considerable work has been reported concerning catalytic steam reforming, partial oxidation and oxidative steam reforming (autothermal reforming) aimed at hydrogen generation from alcohol-water mixtures. They include ...
  • Ambient pressure photoemission spectroscopy reveals the mechanism of carbon soot oxidation in ceria-based catalysts 

    Soler Turu, Lluís; Casanovas Grau, Albert; Escudero, Carlos; Pérez-Dieste, Virginia; Aneggi, Eleonora; Trovarelli, Alessandro; Llorca Piqué, Jordi (2016-06-27)
    Article
    Open Access
    Removing soot is one of the most important challenges in minimizing the impact of combustion engines on the environment. Catalysts based on CeO2 have proved suitable to oxidize soot due to their capacity to store and release ...
  • Aromatic stacking interactions govern catalysis in aryl-alcohol oxidase 

    Ferreira, Patricia; Hernández-Ortega, Aitor; Lucas, Fatima; Carro, Juan; Herguedas, Beatriz; Borrelli, Kenneth W.; Guallar, Víctor; Martínez, Angel T.; Medina, Milagros (FEBSPress, 2015-02-23)
    Article
    Open Access
    Aryl-alcohol oxidase (AAO, EC 1.1.3.7) generates H2O2 for lignin degradation at the expense of benzylic and other π system-containing primary alcohols, which are oxidized to the corresponding aldehydes. Ligand diffusion ...
  • 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
    Open Access
    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 ...
  • Carbonaceous catalysts from orange pulp for limonene oxidation 

    Wróblewska, Agnieszka; Serafin, Jaroslaw; Gawarecka, Alicja; Miadlicki, Piotr; Urbas, Karolina; Koren, Zvi C.; Llorca Piqué, Jordi; Michalkiewicz, Beata (2019-01-01)
    Article
    Open Access
    The possibility of orange pulp utilization for nanoporous carbons production was investigated. Moreover, processing the obtained materials as limonene oxidation catalysts was studied as well. Limonene was separated from ...
  • Catalytic performance of zinc-supported copper and nickel catalysts in the glycerol hydrogenolysis 

    Chimentäo, Ricardo José; Miranda Morales, Bárbara C.; Gispert Guirado, Francesc; Medina Cabello, Francisco; Llorca Piqué, Jordi; Santos, João Batista O. (2020-03-01)
    Article
    Restricted access - publisher's policy
    Gas-phase catalytic conversion of glycerol to value added chemicals was investigated over zinc-supported copper and nickel catalysts. The addition of aluminum in the support was also investigated in glycerol conversion and ...
  • Catalytic reforming of dimethyl ether in microchannels 

    Ledesma Rodriguez, Cristian; López, Eduardo; Trifonov, T.; Rodríguez Martínez, Ángel; Llorca Piqué, Jordi (2018-03-09)
    Article
    Open Access
    The steam reforming and oxidative steam reforming of dimethyl ether (DME) were tested at 573–773¿K over a CuZn/ZrO2 catalyst in microreactors with three different types of channels: ceramic square channels with side lengths ...
  • Catalytic steam reforming of olive mill wastewater for hydrogen production 

    Casanovas, A.; Galvis, A; Llorca Piqué, Jordi (2015-06-29)
    Article
    Open Access
    Catalytic honeycombs functionalized with lanthanum-stabilized ceria as catalytic support and impregnated with different metals (Rh, Ru, Pt, Pd and Ni) were prepared and tested for hydrogen production through the steam ...
  • Ceria-zirconia particles wrapped in a 2D carbon envelope: improved low-temperature oxygen transfer and oxidation activity 

    Aneggi, Eleonora; Rico Perez, Veronica; de Leitenburg, Carla; Maschio, Stefano; Soler Turu, Lluís; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-10-08)
    Article
    Open Access
    Engineering the interface between different compo-nents of heterogeneous catalysts at nanometer level canradically alter their performances.This is particularly true forceria-based catalysts where the interactions are ...
  • Chemically powered micro- and nanomotors 

    Sanchez, Samuel; Soler Turu, Lluís; Katuri, Jaideep (2015-01-26)
    Article
    Restricted access - publisher's policy
    Chemically powered micro- and nanomotors are small devices that are self-propelled by catalytic reactions in fluids. Taking inspiration from biomotors, scientists are aiming to find the best architecture for self-propulsion, ...
  • Development of microstructured zeolite films as highly accessible catalytic coatings for microreactors 

    Urbiztondo Castro, Miguel Ángel; Valera Cano, Enrique Andrés; Todorov Trifonov, Trifon; Alcubilla González, Ramón; Irusta Alderete, Silvia; Pina Isitia, María Pilar; Rodríguez Martínez, Ángel; Santamaria Ramiro, Jesus (2007-08-15)
    Article
    Restricted access - publisher's policy
    Regular structures of SiO2 microneedles and Si micromonoliths have been formed using processing methods similar to those used in the microelectronics field; then these structures have been used as supports for zeolite ...
  • Dynamic reorganization of bimetallic nanoparticles under reaction depending on the support nanoshape: the case of RhPd over ceria nanocubes and nanorods under ethanol steam reforming 

    Soler Turu, Lluís; Casanovas Grau, Albert; Ryan, James; Angurell Purroy, Inmaculada; Escudero, Carlos; Pérez Dieste, Virginia; Llorca Piqué, Jordi (2019-04-05)
    Article
    Restricted access - publisher's policy
    Bimetallic catalysts exhibit high performance compared to that of their monometallic counterparts in a wide range of catalytic reactions. Both geometric and electronic phenomena yield unique properties that cannot be ...
  • Dynamic simulation of pure hydrogen production via ethanol steam reforming in a catalytic membrane reactor 

    Hedayati, Ali; Le Corre, Oliver; Lacarriere, Bruno; Llorca Piqué, Jordi (2016-12-15)
    Article
    Open Access
    Ethanol steam reforming (ESR) was performed over Pd-Rh/CeO2 catalyst in a catalytic membrane reactor (CMR) as a reformer unit for production of fuel cell grade pure hydrogen. Experiments were performed at 923 K, 6–10 bar, ...
  • Electrochemical sensors based on electrochemically inert polymers 

    Buendía Morales, Jordi Juan (Universitat Politècnica de Catalunya, 2016-06-28)
    Bachelor thesis
    Open Access
    The functionalization of electrochemical sensors by plasma techniques represents a new approach to surface physics for nanotechnology implementation and should give a new access to long standing open problems such as the ...
  • Energy from hydrogen. Hydrogen from renewable fuels for portable applications 

    Llorca Piqué, Jordi (2011-11-01)
    Article
    Restricted access - publisher's policy
    Molecular hydrogen is an environmentally clean source of energy, but it is not available on Earth. Steam reforming of bio-derived compounds represents a valuable route for the generation of molecular hydrogen and has the ...
  • Hybrid catalytic membranes: tunable and versatile materials for fine chemistry applications 

    Gu, Yingying; Emin, Clelia; Remigy, Jean-Christophe; Favier, Isabelle; Gómez, Montserrat; Noble, Richard D.; Gin, Douglas L.; Macanás de Benito, Jorge; Domènech Garcia, Berta; Lahitte, Jean-François (Elsevier, 2015)
    Article
    Open Access
    The aim of this work is the synthesis of polymer-stabilized Pd nanoparticles inside a functionalized polymeric porous membrane and to test them in metal-catalyzed organic reactions. A polymeric membrane support (Polyethersulfone) ...