Exploració per autor "Medina Cabello, Francisco"

Ara es mostren els items 1-11 de 11

    • 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
      Accés obert
      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 ...

    • Conversion of glycerol over 10%Ni/y-Al2O3 catalyst 

      Miranda Morales, Bárbara C.; Chimentao, Ricardo J; Santos, Jeannette B O; Gispert Guirado, Francesc; Llorca Piqué, Jordi; Medina Cabello, Francisco; López Bonillo, Francisco; Sueiras, Jesus Eduardo (2014-04-05)
      Article
      Accés restringit per política de l'editorial
      The conversion of glycerol in gas phase and atmospheric pressure has been investigated over 10 wt.% Ni/γ-Al2O3 catalyst. The catalysts were prepared with nickel nitrate and pre-treated with hydrogen in the range of 623–1073 ...

    • Direct growth of hydrotalcite nanolayers on carbon fibers by electrospinning 

      Modesto Lopez, Luis B; Chimentao, Ricardo J; Alvarez, Mayra G; Rosell Llompart, Joan; Medina Cabello, Francisco; Llorca Piqué, Jordi (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      Hydrotalcite (HT) nanolayers have been grown directly on carbon fibers by carbonization and subsequent hydration of electrospun PVA/PEO/MgAl-nitrate fibers. The growth of the layered material was ascertained by X-ray ...

    • Durable ethanol steam reforming in a catalytic membrane reactor at moderate temperature over cobalt hydrotalcite 

      Espinal, Raul; Anzola, Andrés; Adrover, E; Roig Costa, Maria; Chimentao, Ricardo J; Medina Cabello, Francisco; López, E; Borio, Daniel O.; Llorca Piqué, Jordi (2014-07-15)
      Article
      Accés restringit per política de l'editorial
      Ethanol steam reforming has been carried out in a catalytic membrane reactor consisting of cobalt hydrotalcite [Co2Mg4Al2(OH)(16)]CO3 center dot 4H(2)O-derived catalyst doped with potassium supported over cordierite and a ...

    • Effect of impregnation protocol in the metallic sites of Pt-Ag/activated carbon catalysts for water denitration 

      Aristizabal, A.; Contreras, Sandra; Jiménez Divins, Nuria; Llorca Piqué, Jordi; Medina Cabello, Francisco (2014-04-15)
      Article
      Accés restringit per política de l'editorial
      The influence of the Pt precursor and the impregnation protocol in the catalytic behavior of 3%Pt-1.5%Ag supported on activated carbon for water denitration in a continuous reactor was studied. Pt(NH3)(4)(NO3)(2) and H2PtCl6 ...

    • Enhanced photocatalytic degradation of methylene blue: Preparation of TiO2/reduced graphene oxide nanocomposites by direct sol-gel and hydrothermal methods 

      Atout, H.; Alvarez, Mayra G; Chebli, D.; Bouguettoucha, A.; Tichit, Didier; Llorca Piqué, Jordi; Medina Cabello, Francisco (2017-11)
      Article
      Accés obert
      In this study, two different preparation methods of titanium dioxide nanoparticles/reduced graphene oxide nanocomposites were investigated using direct sol-gel method followed by hydrothermal treatment or simple hydrothermal ...

    • Heterogeneous catalytic oxidation of phenol by in situ generated hydrogen peroxide applying novel catalytic membrane reactors 

      Osegueda, O.; Dafinov, Antonio; Medina Cabello, Francisco; Llorca Piqué, Jordi; Sueiras, Jesus Eduardo (2015-02-15)
      Article
      Accés obert
      This work presents a novel method for oxidation of organic matter in water solutions based on catalytic membrane reactors. The oxidant, hydrogen peroxide, is generated directly in the bulk of the liquid investigated. ...

    • Influence of copper on nickel-based catalysts in the conversion of glycerol 

      Miranda Morales, Bárbara C.; Chimentao, Ricardo J; Szanyi, J; Braga, A.H.; Santos, Jeannette B O; Gispert Guirado, Francesc; Llorca Piqué, Jordi; Medina Cabello, Francisco (2015-05-01)
      Article
      Accés obert
      The catalytic transformation of glycerol to value-added compounds was investigated over bimetallic Ni-Cu/gamma-Al2O3 catalysts with Ni/Cu atomic ratios of 8/1, 4/1, 2/1, 1/1, 1/2, 1/4, and 1/8. XPS analysis revealed that ...

    • Insights into palladium deactivation during advanced oxidation processes 

      Pinos Vélez, Verónica; Osegueda, O.; Crivoi, Dana-Georgiana; Llorca Piqué, Jordi; García García, Francisco Javier; Alvarez, Mayra G; Medina Cabello, Francisco; Dafinov, Antonio (American Chemical Society, 2022-09-28)
      Article
      Accés obert
      A key step in creating efficient and long-lasting catalysts is understanding their deactivation mechanism(s). On this basis, the behavior of a series of Pd/corundum materials during several hydrogen adsorption/desorption ...

    • Photocatalytic hydrogen production from water-methanol and -glycerol mixtures using Pd/TiO2(-WO3) catalysts and validation in a solar pilot plant 

      Toledo Camacho, Sandra Yurani; Rey Barroso, Ana; Maldonado Rubio, M. Ignacio; Llorca Piqué, Jordi; Contreras Iglesias, Sandra; Medina Cabello, Francisco (2021-10-13)
      Article
      Accés obert
      This paper is focused on the photocatalytic hydrogen production on Pd/TiO2(-WO3) catalysts from water-methanol and water-glycerol mixtures under UVA and solar irradiation. The photodeposition method for Pd was studied ...

    • Study of the catalytic wet air oxidation of p-hydroxybenzoic acid on a fresh ruthenium catalyst supported by different oxides 

      Hammedi, Tijani; Bensouilah, Rahma; Ouakouak, Abdelkader; Llorca Piqué, Jordi; Medina Cabello, Francisco; Ksibi, Zouhaier (Elsevier Ltd, 2023-10-01)
      Article
      Accés obert
      The catalytic wet air oxidation (CWAO) of p-hydroxybenzoic acid (p-HBA) was conducted in a batch reactor at 140 °C, and at a total air pressure of 50 bar over Ru-based catalysts. Four materials were selected as supports – ...