Exploració per autor "Escudero, Carlos"

Ara es mostren els items 1-10 de 10

    • 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)
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      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 ...

    • 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)
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      Accés obert
      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 ...

    • 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)
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      Accés restringit per política de l'editorial
      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 ...

    • Enhancement of phase stability and optoelectronic performance of BiFeO3 thin films via cation co-substitution 

      Machado, Pamela; Caño, Ivan; Menendez Muniz, Cesar; Cazorla Silva, Claudio; Tan, Huan; Fina, Ignasi; Campoy Quiles, Marioano; Escudero, Carlos; Tallarida, Massimo; Coll, Mariona (Royal Society of Chemistry (RSC), 2021-01-07)
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      Accés obert
      Compositional engineering of BiFeO3 can significantly boost its photovoltaic performance. Therefore, controlling site substitution and understanding how it affects the optical and electronic properties while achieving ...

    • Investigation of the evolution of Pd-Pt supported on ceria for dry and wet methane oxidation 

      Jiménez Divins, Nuria; Braga, Andrea; Vendrell Villafruela, Xavier; Serrano Carreño, M. Isabel; García de Andrés, Xènia; Soler Turu, Lluís; Lucentini, Ilaria; Danielis, Maila; Mussio, Andrea; Colussi, Sara; Villar García, Ignacio J.; Escudero, Carlos; Trovarelli, Alessandro; Llorca Piqué, Jordi (2022-08-29)
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      Accés obert
      Efficiently treating methane emissions in transportation remains a challenge. Here, we investigate palladium and platinum mono- and bimetallic ceria-supported catalysts synthesized by mechanical milling and by traditional ...

    • Journal of Materials Chemistry C 

      El-Hachemi, Zoubir; Escudero, Carlos; Acosta-Reyes, Francisco; Casas Becerra, María Teresa; Aloni, Shaul; Oncins, Gerard; Sorrenti, Alessandro; Crusats, Joaquim; Ribó Trujillo, Josep M.; Campos López, Josefina de Lourdes (Royal Society of Chemistry, 2013-03-28)
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      Accés obert
      The structure of the meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) J-aggregates could be determined by X-ray and electron diffraction methods. A sheet-like architecture reveals the relationship between structure and ...

    • Operando NAP-XPS studies of a ceria-supported Pd catalyst for CO oxidation 

      García de Andrés, Xènia; Soler Turu, Lluís; Vendrell Villafruela, Xavier; Serrano Carreño, M. Isabel; Herrera, Facundo; Prat, Jordi; Solano Minuesa, Eduardo; Tallarida, Massimo; Llorca Piqué, Jordi; Escudero, Carlos (Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-20)
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      Accés obert
      Supported Pd/CeO2 catalytic systems have been widely investigated in the low-temperature oxidation of CO (LTO CO) due to the unique oxygen storage capacity and redox properties of the ceria support, which highly influence ...

    • Unraveling the chemical state of cobalt in Co-based catalysts during Ethanol steam reforming: an in situ study by near ambient pressure XPS and XANES 

      Huck-Iriart, Cristián; Soler Turu, Lluís; Casanovas Grau, Albert; Marini, Carlo; Prat, Jordi; Llorca Piqué, Jordi; Escudero, Carlos (2018-01-01)
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      Accés obert

    • Water-mediated photo-induced reduction of platinum films 

      Fraxedas Calduch, Jordi; Zhang, Kuan; Sepulveda, Borja; Esplandiu, María José; García de Andrés, Xènia; Llorca Piqué, Jordi; Pérez Dieste, Virginia; Escudero, Carlos (2019-06-11)
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      Accés restringit per política de l'editorial
      Platinum thin films activated ex situ by oxygen plasma become reduced by the combined effect of an intense soft X-ray photon beam and condensed water. The evolution of the electronic structure of the surface has been ...

    • X-ray photoelectron and Raman spectroscopy of nanostructured ceria in soot oxidation under operando conditions 

      García de Andrés, Xènia; Soler Turu, Lluís; Casanovas Grau, Albert; Escudero, Carlos; Llorca Piqué, Jordi (2021-06)
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      Accés obert
      Ceria nanoshapes exhibiting different amounts of {100}, {110} and {111} facets (cubes, rods, octahedra and polyhedra) were prepared, characterized, tested in the carbon soot oxidation reaction, and studied by operando near ...