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Mostrando ítems 1-10 de 19
Artículo
A direct in situ observation of water-enhanced proton conductivity of Eu-doped ZrO2: Effect on WGS reaction
(Elsevier, 2018)
Eu-doped ZrO2 solid solutions have been synthesized in order to prepare proton conductors as water-enhancer additives for the WGS reaction. Elemental characterization has been carried out revealing homogeneous ...
Artículo
Elucidation of water promoter effect of proton conductor in wgs reaction over pt-based catalyst: An operando drifts study
(Multidisciplinary Digital Publishing Institute (MDPI), 2020)
A conventional Pt/CeO2/Al2O3 catalyst physically mixed with an ionic conductor (Mo-or Eu-doped ZrO2) was tested at high space velocity (20,000 h−1 and 80 L h−1 gcat−1) under model conditions (only with CO and H2O) and ...
Artículo
CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
Renewed interest in CO2 methanation is due to its role within the framework of the Power-to-Methane processes. While the use of nickel-based catalysts for CO2 methanation is well stablished, the support is being subjected ...
Artículo
Upgrading the PtCu intermetallic compounds: The role of Pt and Cu in the alloy
(Elsevier B.V., 2020-10-01)
This work is devoted to the study of the role of both metals in the intermetallic PtxCuy/ γ Al2O3 catalysts commonly employed in CO-PROX reaction. Therefore, monometallic Pt and Cu based catalysts and PtCu intermetallic ...
Artículo
Metal Micro-Monoliths for the Kinetic Study and the Intensification of the Water Gas Shift Reaction
(MDPI, 2018-11)
A kinetic study of the water gas shift (WGS) reaction has been carried out on a Pt-based catalyst promoted by a Zr-based proton conductor. The investigation was first performed on powders with diluted feed mixtures and ...
Artículo
Improving the activity of gold nanoparticles for the water-gas shift reaction using TiO2–Y2O3: an example of catalyst design
(The Royal Society of Chemistry, 2018)
In the last ten years, there has been an acceleration in the pace at which new catalysts for the watergas shift reaction are designed and synthesized. Pt-based catalysts remain the best solution when only activity is ...
Artículo
Catalytic performance of bulk and Al2O3-supported molybdenum oxide for the production of biodiesel from oil with high free fatty acids content
(Multidisciplinary Digital Publishing Institute (MDPI), 2020)
Non-edible vegetable oils are characterized by high contents of free fatty acids (FFAs) that prevent from using the conventional basic catalysts for the production of biodiesel. In this work, solid acid catalysts are used ...
Artículo
Time-resolved Operando DRIFTS-MS Study of the Moisture Tolerance of Small-pore SAPO-34 Molecular Sieves During CH4/CO2 Separation
(Elsevier, 2020)
This study pretends to evaluate and understand the effect of moisture presence during CO2/CH4 separation on small-pore SAPO-34 molecular sieves. Two SAPO-34 samples with different physicochemical properties (composition, ...
Artículo
Gold Functionalized Supported Ionic Liquids Catalyst for CO Oxidation.
(Multidisciplinary Digital Publishing Institute, 2011)
The present study tries to give an insight to the combination of the homogeneous and heterogeneous catalytic properties in a new class of materials. Well dispersed gold nanoparticles on an ionic liquid layer supported on ...
Artículo
Phosphate-type supports for the design of WGS catalysts
(Elsevier, 2018)
The importance of water availability during the WGS reaction has been extensively reported. Thus, the search of new supports able to interact with the water molecule is of great importance. In this work, a series of ...