Now showing items 1-13 of 13

    • IconAu/CeO2 catalysts: structure and CO oxidation activity  [Article]

      Centeno Gallego, Miguel Ángel; Ramírez Reina, Tomás; Ivanova, Svetlana; Laguna Espitia, Oscar Hernando; Odriozola Gordón, José Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2016)
      In this comprehensive review, the main aspects of using Au/CeO2 catalysts in oxidation reactions are considered. The influence of the preparation methods and synthetic parameters, as well as the characteristics of the ceria ...
    • IconBoosting the activity of a Au/CeO2/Al2O3 catalyst for the WGS reaction  [Article]

      Centeno Gallego, Miguel Ángel; Odriozola Gordón, José Antonio; Ivanova, Svetlana; Ramírez Reina, Tomás (Elsevier, 2015)
      Herein a strategy to design highly efficient Au/CeO2/Al2O3 based WGS catalysts is proposed. The inclusion of transition metals, namely Fe, Cu and Zn as CeO2 dopant is considered. All the promoters successfully increased ...
    • IconCould an efficient WGS catalyst be useful in the CO-PrOx reaction?  [Article]

      Ramírez Reina, Tomás; Papadopoulos, E.; Palma del Valle, Sandra; Ivanova, Svetlana; Centeno Gallego, Miguel Ángel; Ioannides, T.; Odriozola Gordón, José Antonio (Elsevier, 2014)
      This work presents an evaluation of a high performance series of water gas shift (WGS) catalysts in the preferential CO oxidation reaction (PrOx) in order to examine the applicability of the same catalyst for both processes ...
    • IconDiseño y caracterización de catalizadores en oro para la reacción de water gas shift reaction  [Doctoral Thesis]

      Ramírez Reina, Tomás (2014-06-30)
      1. Introducción y Objetivo La protección del medio ambiente es uno de los principales problemas a los que se enfrenta el mundo actual. El creciente calentamiento global del planeta ha potenciado el interés científico en ...
    • IconInfluence of Vanadium or Cobalt Oxides on the CO Oxidation Behavior of Au/MO x/CeO 2-Al 2O 3 Systems  [Article]

      Ramírez Reina, Tomás; Álvarez Moreno, Andrea; Ivanova, Svetlana; Odriozola Gordón, José Antonio; Centeno Gallego, Miguel Ángel (John Wiley & Sons, 2012)
      A series of V 2O 5- and Co 3O 4-modified ceria/alumina supports and their corresponding gold catalysts were synthesized and their catalytic activities evaluated in the CO oxidation reaction. V 2O 5-doped solids demonstrated ...
    • IconLow-temperature CO oxidation on multicomponent gold based catalysts  [Article]

      Ramírez Reina, Tomás; Ivanova, Svetlana; Centeno Gallego, Miguel Ángel; Odriozola Gordón, José Antonio (Frontiers Media S.A, 2013)
      In this work the development of gold catalysts, essentially based on γ-alumina with small superficial fraction of Ce-Fe mixed oxides as support for the low temperature CO oxidation is proposed. Characterization results ...
    • IconMono and bimetallic Cu-Ni structured catalysts for the water gas shift reaction  [Article]

      Arbeláez, O.; Ramírez Reina, Tomás; Ivanova, Svetlana; Bustamante, F.; Villa, A. L.; Centeno, Miguel Ángel; Odriozola Gordón, José Antonio (Elsevier, 2015)
      The water-gas shift (WGS) reaction over structured Cu, Ni, and bimetallic Cu-Ni supported on active carbon (AC) catalysts was investigated. The structured catalysts were prepared in pellets form and applied in the medium ...
    • IconNanogold mesoporous iron promoted ceria catalysts for total and preferential CO oxidation reactions  [Article]

      Odriozola Gordón, José Antonio; Zhong-Yong Yuan; Qing-Fang Deng; Centeno Gallego, Miguel Ángel; Tobacova, Tatyana; Idakiev, Vasko; Ivanova, Svetlana; Ramírez Reina, Tomás (Elsevier, 2016)
      Herein, a series of highly efficient gold based catalysts supported on mesoporous CeO2-Fe2O3 mixed oxides for CO elimination reactions have been developed. The materials have been fully characterized by means of XRD, Raman ...
    • IconNi-CeO2/C Catalysts with Enhanced OSC for the WGS Reaction  [Article]

      Pastor Pérez, Laura; Ramírez Reina, Tomás; Ivanova, Svetlana; Centeno, Miguel Ángel; Odriozola Gordón, José Antonio; Sepúlveda Escribano, Antonio (MDPI AG, 2015)
      In this work, the WGS performance of a conventional Ni/CeO2 bulk catalyst is compared to that of a carbon-supported Ni-CeO2 catalyst. The carbon-supported sample resulted to be much more active than the bulk one. The higher ...
    • IconO2-assisted Water Gas Shift reaction over structured Au and Pt catalysts  [Article]

      González Castaño, Míriam; Ramírez Reina, Tomás; Ivanova, Svetlana; Martínez Tejada, Leidy Marcela; Centeno Gallego, Miguel Ángel; Odriozola Gordón, José Antonio (Elsevier, 2016)
      Platinum and gold structured catalysts were compared as active phases in classical and O2-assisted Water Gas Shift (WGS) reaction. Both metals were supported on iron-doped ceria mixed oxide and then, structured on metallic ...
    • IconPt vs. Au in water-gas shift reaction  [Article]

      González Castaño, Míriam; Ramírez Reina, Tomás; Ivanova, Svetlana; Centeno Gallego, Miguel Ángel; Odriozola Gordón, José Antonio (Elsevier, 2014)
      This work presents a comparison of the gold- and platinum-based catalysts behavior in the water-gas shift (WGS) reaction. The influence of the support, e.g., its composition and electronic properties, studied in detail by ...
    • IconSub-ambient CO oxidation over Au/MO x/CeO 2-Al 2O 3 (M = Zn or Fe)  [Article]

      Ramírez Reina, Tomás; Ivanova, Svetlana; Centeno Gallego, Miguel Ángel; Odriozola Gordón, José Antonio (Elsevier, 2012)
      A series of ZnO and Fe 2O 3 modified ceria/alumina supports and their corresponding gold catalyst were prepared and studied in the CO oxidation reaction. ZnO-doped solids show a superior catalytic activity compared to the ...
    • IconWGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “bulk CuO-CeO2 vs. CuO-CeO2/Al2O3 with low mixed oxide content”  [Article]

      Ramírez Reina, Tomás; Ivanova, Svetlana; Laguna Espitia, Oscar Hernando; Centeno Gallego, Miguel Ángel; Odriozola Gordón, José Antonio (Elsevier, 2016)
      A copper-ceria bulk catalyst has been compared to a series of catalysts designed according to the as called “supported approach”, corresponding to the dispersion of low content mixed copper-ceria oxide on alumina matrix. ...