Now showing items 1-20 of 33

  • Aluminum and aluminum alloys as sources of hydrogen for fuel cell applications 

    Soler Turu, Lluís; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Casado Giménez, Juan (2007-06-10)
    Article
    Restricted access - publisher's policy
    Production of hydrogen using aluminum and aluminum alloys with aqueous alkaline solutions is studied. This process is based on aluminum corrosion, consuming only water and aluminum which are cheaper raw materials than other ...
  • 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 ...
  • 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
    Restricted access - author's decision
    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 ...
  • Biofunctionalized self-propelled micromotors as an alternative on-chip concentrating system 

    Restrepo Perez, Laura; Soler Turu, Lluís; Martinez Cisneros, Cynthia; Sanchez, Samuel; Schmidt, Oliver G. (2014-05-29)
    Article
    Restricted access - publisher's policy
    Sample pre-concentration is crucial to achieve high sensitivity and low detection limits in lab-on-a-chip devices. Here, we present a system in which self-propelled catalytic micromotors are bio-functionalized and trapped ...
  • Catalytic nanomotors for environmental monitoring and water remediation 

    Soler Turu, Lluís; Sanchez, Samuel (2014-04-01)
    Article
    Restricted access - publisher's policy
    Self-propelled nanomotors hold considerable promise for developing innovative environmental applications. This review highlights the recent progress in the use of self-propelled nanomotors for water remediation and ...
  • 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 oxidation and COPrOx over preformed Au nanoparticles supported over nanoshaped CeO2 

    Soler Turu, Lluís; Casanovas Grau, Albert; Urrich, Aitor; Angurell Purroy, Inmaculada; Llorca Piqué, Jordi (2016-02-10)
    Article
    Open Access
    Au/CeO2 (0.25% wt. Au) catalysts were prepared by anchoring preformed Au nanoparticles over ceria polycrystals, cubes and rods and tested in the oxidation of CO and COPrOx. The use of preformed Au nanoparticles assured a ...
  • Effect of temperature on the gas-phase photocatalytic H2 generation using microreactors under UVA and sunlight irradiation 

    Castedo Rodríguez, Alejandra; Casanovas Grau, Albert; Angurell Purroy, Inmaculada; Soler Turu, Lluís; Llorca Piqué, Jordi (2018-06-15)
    Article
    Restricted access - publisher's policy
    The effect of temperature on the photocatalytic hydrogen generation from a gaseous water-ethanol mixture has been tested in a silicone microreactor containing nine microchannels of 500 µm (width) × 1 mm (depth) × 47 mm ...
  • Electrocatalytic production of hydrogen boosted by organic pollutants and visible light 

    Soler Turu, Lluís; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Casado Giménez, Juan (2006-01)
    Article
    Restricted access - publisher's policy
    A new method to produce high-purity hydrogen using photoelectrocatalytic reactions is studied. This integrated process uses solar energy and the Gibbs free energy of oxidation of organic wastes to help reducing the energy ...
  • Fast and simple microwave synthesis of TiO2/Au nanoparticles for gas-phase photocatalytic hydrogen generation 

    May Masnou, Anna; Soler Turu, Lluís; Torras, Miquel; Sallés, Pol; Llorca Piqué, Jordi; Roig, Anna (2018-04-12)
    Article
    Open Access
    The fabrication of small anatase titanium dioxide (TiO2) nanoparticles (NPs) attached to larger anisotropic gold (Au) morphologies by a very fast and simple two-step microwave-assisted synthesis is presented. The TiO2/Au ...
  • Gold(I)-complex–titania hybrid photocatalyst for hydrogen production 

    Aguiló Linares, Elisabet; Soler Turu, Lluís; Casanovas Grau, Albert; Moro, Artur J.; Lima, Joao Carlos; Rodríguez Raurell, Laura; Llorca Piqué, Jordi (2017-09-08)
    Article
    Open Access
    The integration of TiO2 with a AuI complex containing a thiocoumarin moiety resulted in a very efficient photocatalyst for the generation of H2. The molecular structure of the complex was preserved under the photoreaction ...
  • Hydrogen generation by aluminum corrosion in aqueous alkaline solutions of inorganic promoters: the Alhidrox process 

    Macanás de Benito, Jorge; Soler Turu, Lluís; Candela Soto, Angélica Maria; Muñoz Tapia, Maria; Casado Giménez, Juan (2011-05)
    Article
    Restricted access - publisher's policy
    The research of alternative processes to obtain clean fuels has become a main issue because of the concerns related to the current energy system, both from economical and environmental points of view. Hydrogen storage and ...
  • Hydrogen generation by aluminum corrosion in seawater promoted by suspensions of aluminum hydroxide 

    Soler Turu, Lluís; Candela Soto, Angélica Maria; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Casado Giménez, Juan (2009-10)
    Article
    Restricted access - publisher's policy
    Nowadays, new processes of H2 generation from water via Al corrosion are mainly limited by Al passivation. Here we report on the systematic assessment of H2 production by corrosion of Al in seawater suspensions prepared ...
  • Hydrogen generation from water and aluminum promoted by sodium stannate 

    Soler Turu, Lluís; Candela Soto, Angélica Maria; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Casado Giménez, Juan (2010-02)
    Article
    Restricted access - publisher's policy
    A new process to obtain H2 from H2O using Al corrosion in Na2SnO3 solutions is described. Results showed an enhancement of H2 production rates using Na2SnO3 instead of NaOH at the same pH. A side reaction of Al in Na2SnO3 ...
  • In situ generation of hydrogen from water by aluminum corrosion in solutions of sodium aluminate 

    Soler Turu, Lluís; Candela Soto, Angélica Maria; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Casado Giménez, Juan (2009-07-01)
    Article
    Restricted access - publisher's policy
    A new process to obtain hydrogen from water using aluminum in sodium aluminate solutions is described and compared with results obtained in aqueous sodium hydroxide. This process consumes only water and aluminum, which are ...
  • Kinetic analysis and CFD simulations of the photocatalytic production of hydrogen in silicone microreactors from water-ethanol mixtures 

    Castedo Rodríguez, Alejandra; Uriz, I.; Soler Turu, Lluís; Gandía, L. M.; Llorca Piqué, Jordi (2017-04-01)
    Article
    Open Access
    Silicone microreactors containing microchannels of 500 µm width in a single or triple stack configuration have been manufactured, coated with an Au/TiO2 photocatalyst and tested for the photocatalytic production of hydrogen ...
  • Methanol steam reforming behavior of sol-gel synthesized nanodimensional CuxFe1-xAl2O4 hercynites 

    Maiti, Sayantani; Das, Dipak; Pal, Kamalesh; Llorca Piqué, Jordi; Soler Turu, Lluís; Colussi, Sara; Trovarelli, Alessandro; Priolkar, Kaustubh R.; Sarode, P.R.; Asakura, K.; Motin Seikh, Md.; Gayen, Arup (2019-01-25)
    Article
    Restricted access - publisher's policy
    This work reports the outstanding catalytic activity behavior of sol-gel synthesized nanostructured CuxFe1-xAl2O4 (0.3¿=¿x¿=¿0.8; named as CuFeAln, where n¿=¿30, 40, 50, 60, 70 and 80) hercynites towards methanol steam ...
  • Nano and micro architectures for self-propelled motors 

    Parmar, Jemish; Ma, Xing; Katuri, Jaideep; Simmchen, Juliane; Stanton, Morgan M.; Trichet-Paredes, Carolina; Soler Turu, Lluís; Sanchez, Samuel (2015-01-28)
    Article
    Open Access
    Self-propelled micromotors are emerging as important tools that help us understand the fundamentals of motion at the microscale and the nanoscale. Development of the motors for various biomedical and environmental applications ...
  • Nano-photocatalysts in microfluidics, energy conversion and environmental applications 

    Parmar, Jemish; Jang, Seungwook; Soler Turu, Lluís; Kim, Dong-Pyo; Sanchez, Samuel (2015-04-22)
    Article
    Open Access
    Extensive studies have been carried out on photocatalytic materials in recent years as photocatalytic reactions offer a promising solution for solar energy conversion and environmental remediation. Currently available ...