Now showing items 1-20 of 56

    • 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 ...
    • 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 ...
    • 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 ...
    • Breaking-down the catalyst used for the electrophotosynthesis of amino acids by nitrogen and carbon fixation 

      Sans Milà, Jordi; Armelín Diggroc, Elaine Aparecida; Sanz, Vanesa; Puiggalí Bellalta, Jordi; Turon, Pau; Alemán Llansó, Carlos (2020-09-01)
      Article
      Restricted access - publisher's policy
      The electrophotocatalytic synthesis of Glycine and Alanine from a simple gas mixture containing N2, CO2, CH4 and H2O under mild reaction conditions (95 °C and 6 bar) was recently developed using a catalyst formed by ...
    • 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-based catalysts studied by near ambient pressure x-ray photoelectron spectroscopy: A review 

      García de Andrés, Xènia; Soler Turu, Lluís; Jiménez Divins, Nuria; Vendrell Villafruela, Xavier; Serrano Carreño, M. Isabel; Lucentini, Ilaria; Prat Albert, Jordi; Solano Minuesa, Eduardo; Tallarida, Massimo; Escudero, Carlos; Llorca Piqué, Jordi (2020-03-03)
      Article
      Open Access
      The development of better catalysts is a passionate topic at the forefront of modern science, where operando techniques are necessary to identify the nature of the active sites. The surface of a solid catalyst is dynamic ...
    • 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, ...
    • CO and CO2 methanation over Ni catalysts supported on CeO2, Al2O3 and Y2O3 oxides 

      Italiano, Cristina; Llorca Piqué, Jordi; Pino, Lidia; Ferraro, Marco; Antonucci, Vincenzo; Vita, Antonio (2020-05-05)
      Article
      Restricted access - publisher's policy
      Methanation of carbon oxides (CO and CO2) was studied over Ni-based catalysts supported on CeO2, Al2O3, and Y2O3 oxides. Catalysts were synthesized by solution combustion synthesis and characterized by N2-physisorption, ...
    • 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 ...
    • Eliminació de les impureses formades en la fusió nuclear mitjançant un reactor catalític de membranes 

      Armengol Profitós, Marina (Universitat Politècnica de Catalunya, 2019-07-17)
      Master thesis
      Restricted access - author's decision
      Estudi de les impureses formades en el cicle de combustió d'una central de fusió nuclear, com el projecte ITER. Eliminació de les impureses seleccionades per mitjà d'un reactor catalític de membranes.