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Ara es mostren els items 21-40 de 348

    • Alcohols and bio-alcohols steam and autothermal reforming in a membrane reactor 

      Llorca Piqué, Jordi; Hedayati, Ali (2014-11-28)
      Capítol de llibre
      Accés restringit per política de l'editorial
      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
      Accés obert
      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 ...

    • Ammonia decomposition over 3D-printed CeO2 structures loaded with Ni 

      Lucentini, Ilaria; Serrano Carreño, M. Isabel; Soler Turu, Lluís; Jiménez Divins, Nuria; Llorca Piqué, Jordi (2020-02-05)
      Article
      Accés obert
      Binder-free ceria pastes have been formulated and used to prepare ceria structures with a woodpile arrangement of microchannels through 3D printing. After loading them with nickel, these catalytic structures have been ...

    • An efficient and reusable catalyst based on Pd/CeO2 for the room temperature aerobic Suzuki–Miyaura reaction in water/ethanol 

      Amoroso, Francesco; Colussi, Sara; Del Zotto, Alessandro; Llorca Piqué, Jordi; Trovarelli, Alessandro (2010)
      Article
      Accés restringit per política de l'editorial
      The Pd/CeO2 system behaves as an efficient precatalyst for the Suzuki–Miyaura cross-coupling under mild conditions (298 K, in air) in ethanol/water. A broad range of aryl bromides, including those deactivated, and ...

    • Anaerobic co-digestion of acetate-rich with lignin-rich wastewater and the effect of hydrotalcite addition 

      Rodriguez Chiang, Lourdes Maria; Llorca Piqué, Jordi; Dahl Olli, Peka (2016-10-01)
      Article
      Accés obert
      The methane potential and biodegradability of different ratios of acetate and lignin-rich effluents from a neutral sulfite semi-chemical (NSSC) pulp mill were investigated. Results showed ultimate methane yields up to 333 ...

    • Application of Fe-Zn-Mg-Al-O hydrotalcites supported Au as active nano-catalyst for fermentative hydrogen production 

      Wimonsong, Pornthip; Nitisoravut, Rachnarin; Llorca Piqué, Jordi (2014-10-01)
      Article
      Accés restringit per política de l'editorial
      Four different Au/Fe-Zn-Mg-Al-O hydrotalcites (HTs) supported Au catalysts were synthesized by the incipient impregnation method and characterized by X-ray photoelectron spectroscopy and scanning electron microcopy. ...

    • Assessment of integration of methane-reduced ceria chemical looping CO2/H2O splitting cycle to an oxy-fired power plant 

      Uddin, Azhar; Bose, Archishman; Boaro, Marta; Llorca Piqué, Jordi; Santarelli, Massimo (2020-02-28)
      Article
      Accés obert
      In this paper, we investigated the effect of reaction kinetics and moving bed reactors for chemical looping (CO2/H2O) splitting unit (CL) that produces syngas and fed back to the power plant to gain the efficiency loss due ...

    • Assessment of kinetic model for ceria oxidation for chemical-looping CO2 dissociation 

      Farooqui, A.E.; Manfredi Pica, A.; Marocco, P.; Ferrero, D.; Lanzini, A.; Fiorilli, S.; Llorca Piqué, Jordi; Santarelli, Massimo (2018-08-15)
      Article
      Accés obert
      Chemical looping technologies are identified as to have an excellent potential for CO2 capture and fuels synthesis. Oxygen carriers are the fundamental component of a chemical looping process, and the choice of stable and ...

    • Atomically dispersed Fe in a C2N based catalyst as a sulfur host for efficient lithium–sulfur batteries 

      Liang, Zhifu; Yang, Dawei; Tang, Pengyi; Zhang, Chaoqi; Jacas Biendicho, Jordi; Zhang, Yi; Llorca Piqué, Jordi; Wang, Xiang; Li, Junshan; Morante Lleonart, Joan Ramon; Cabot, Andreu; Arbiol, Jordi (2021-02-04)
      Article
      Accés obert
      Lithium–sulfur batteries (LSBs) are considered to be one of the most promising next generation energy storage systems due to their high energy density and low material cost. However, there are still some challenges for the ...

    • Au/TiO2 2D-photonic crystals as UV–visible photocatalysts for H2 production 

      Torras, Miquel; Molet, Pau; Soler Turu, Lluís; Llorca Piqué, Jordi; Roig, Anna; Mihi, Agustin (2022-02-10)
      Article
      Accés obert
      Noble metal decoration of wideband gap semiconductors enables the excitation of surface plasmons in the visible range that upon relaxation generate hot carriers used for catalysis. However, this strategy leads to photocatalytic ...

    • Au/TiO2 Lyogels for Hydrogen Production 

      Molins, Elies; Benito, Mónica; Mata, Ignasi; Martínez, Lester; Soler Turu, Lluís; Llorca Piqué, Jordi (Cambridge University Press, 2017-05-15)
      Article
      Accés restringit per decisió de l'autor
      Au/TiO2 lyogels have been prepared by sol-gel process followed by freeze-drying and calcination in order to induce crystallization. In the synthesis, a dispersion of AuNPs was added either during the sol-gel process or ...

    • Bimetallic NiFe nanoparticles supported on CeO2 as catalysts for methane steam reforming 

      Braga, Andrea; Armengol Profitós, Marina; Pascua Solé, Laia; Vendrell Villafruela, Xavier; Soler Turu, Lluís; Serrano Carreño, M. Isabel; Villar García, Ignacio J.; Pérez Dieste, Virginia; Jiménez Divins, Nuria; Llorca Piqué, Jordi (American Chemical Society, 2023-05-12)
      Article
      Accés obert
      Ni-Fe nanocatalysts supported on CeO2 have been prepared for the catalysis of methane steam reforming (MSR) aiming for coke-resistant noble metal-free catalysts. The catalysts have been synthesized by traditional incipient ...

    • Bimetallic Ru–Pd supported on CeO2 for the catalytic partial oxidation of methane into syngas 

      Fazlikeshteli, Shiva; Vendrell Villafruela, Xavier; Llorca Piqué, Jordi (2023-02-15)
      Article
      Accés obert
      A series of monometallic Ru, Pd, and bimetallic Ru–Pd catalysts loaded on CeO2 support have been prepared via mechanochemical and conventional incipient wetness impregnation methods and used in the partial oxidation of ...

    • Bio-ethanol steam reforming and autothermal reforming in 3- m channels coated with RhPd/CeO2 for hydrogen generation 

      Divins, N.J.; López, Eduardo; Rodríguez Martínez, Ángel; Vega, Didac; Llorca Piqué, Jordi (2013-02)
      Article
      Accés restringit per política de l'editorial
      A silicon micromonolith of 7 mm diameter and 0.2 mm length containing 1.5 million regular channels with a diameter of 3.3 μm was used for obtaining hydrogen through ethanol or bio-ethanol steam reforming (ESR) and oxidative ...

    • 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 obert
      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 ...

    • Boosted CO2 reaction with methanol to yield dimethyl carbonate over Mg–Al hydrotalcite-silica lyogels 

      Stoian, D.C.; Taboada, E.; Llorca Piqué, Jordi; Molins, E.; Medina, F.; Segarra, A.M. (2013-05-13)
      Article
      Accés restringit per política de l'editorial
      Nonimmobilized and immobilized Mg–Al hydrotalcite-like materials on silica lyogels were prepared and activated by calcination to be tested as catalysts in the direct carboxylation reaction of methanol. The HTs supportedon ...

    • Brookite TiO2 nanorods as promising electrochromic and energy storage materials for smart windows 

      Xing, Congcong; Yang, Linlin; He, Ren; Spadaro, Maria Chiara; Zhang, Yu; Arbiol Cobos, Jordi; Li, Junshan; Poudel, Bed; Nozariasbmarz, Amin; Li, Wenjie; Lim, Khak Ho; Liu, Yu; Llorca Piqué, Jordi; Cabot Codina, Andreu (2023-01-01)
      Article
      Accés obert
      Electrochromic smart windows (ESWs) offer an attractive option for regulating indoor lighting conditions. Electrochromic materials based on ion insertion/desertion mechanisms also present the possibility for energy storage, ...

    • 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
      Accés obert
      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 activity and characterization of Fe-Zn-Mg-Al hydrotalcites in biohydrogen production 

      Wimonsong, Pornthip; Llorca Piqué, Jordi; Nitisoravut, Rachnarin (2013-08-21)
      Article
      Accés restringit per política de l'editorial
      Four different M2þeMgeAl hydrotalcite (HT) materials were investigated for their effect on biohydrogen enhancement, where M2þ is Fe and/or Zn. HTs were synthesized by the coprecipitation method and characterized by ...

    • Catalytic ammonia decomposition for hydrogen production on Ni, Ru and Ni–Ru supported on CeO2 

      Lucentini, Ilaria; Casanovas Grau, Albert; Llorca Piqué, Jordi (2019-05-13)
      Article
      Accés obert
      Ceria-supported Ni, Ru and NiRu catalysts have been tested in the catalytic decomposition of ammonia to yield hydrogen and their performance in long-term tests has been compared to alumina-supported Ni and Ru samples. The ...