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Mostrando ítems 1-10 de 98
Artículo
Promoting effect of CeO2, ZrO2 and Ce/Zr mixed oxides on Co/Γ-Al2O3 catalyst for Fischer-Tropsch synthesis
(Elsevier, 2019)
A series of cobalt-based catalysts have been synthesized using as support γ-Al2O3 promoted by ceria/zirconia mixed oxides with a variable Ce/Zr molar ratio. The obtained catalysts demonstrated oxide promotion results in ...
Artículo
Flexible NiRu Systems for CO2 Methanation: From Efficient Catalysts to Advanced Dual-Function Materials
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
CO2 emissions in the atmosphere have been increasing rapidly in recent years, causing global warming. CO2 methanation reaction is deemed to be a way to combat these emissions by converting CO2 into synthetic natural gas, ...
Artículo
Evaluation of the Oxygen Mobility in CePO4-Supported Catalysts: Mechanistic Implications on the Water-Gas Shift Reaction
(American Chemical Society, 2020-07-30)
The hexagonal and monoclinic phases of CePO4 have been demonstrated to be excellent catalytic supports for Pt-based water-gas shift (WGS) catalysts. Consequently, the elucidation of the WGS reaction mechanism in these ...
Artículo
Dry reforming of ethanol and glycerol: Mini-review
(Multidisciplinary Digital Publishing Institute (MDPI), 2019)
Dry reforming of ethanol and glycerol using CO2 are promising technologies for H2 production while mitigating CO2 emission. Current studies mainly focused on steam reforming technology, while dry reforming has been typically ...
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 ...
Tesis Doctoral
Diseño de aceros inoxidables austeníticos resistentes a la oxidación a alta temperatura. Efectos de la composición de la matriz y de las modificaciones superficiales
(2002-09)
En la presente memoria se ha diseñado un acero inoxidable denominado alto silicio en el que, fundamentalmente, se eleva la concentración de este elemento a la vez que se elimina manganeso, teniendo en cuenta en el diseño ...
Artículo
Unravelling the Role of Oxygen Vacancies in the Mechanism of the Reverse Water–Gas Shift Reaction by Operando DRIFTS and Ultraviolet–Visible Spectroscopy
(American Chemical Society, 2018)
The reaction mechanism of the reverse water−gas shift (RWGS) reaction was investigated using two commercial gold-based catalysts supported on Al2O3 and TiO2. The surface species formed during the reaction and reaction ...
Artículo
Recent advances on gas-phase CO2 conversion: Catalysis design and chemical processes to close the carbon cycle
(Elsevier, 2022)
Chemical CO2 recycling in the gas phase constitutes a straightforward approach for effective CO2 conversion to added-value products like syngas or synthetic methane. In this scenario, some traditional processes such as the ...
Tesis Doctoral
Estudio de la capa de oxidación formada a alta temperatura en un soporte de acero inoxidable ferrítico EN-1.4509 mediante microscopía electrónica de barrido
(2021-12-10)
La capa de oxidación que crece sobre los aceros inoxidables está condicionada por numerosos factores, como por ejemplo la atmósfera a la que se expone, el tiempo que permanece en ella, la temperatura, y los elementos de ...
Artículo
Selective CO removal over Au/CeFe and CeCu catalysts in microreactors studied through kinetic analysis and CFD simulations
(Elsevier, 2011)
A kinetic study of the preferential oxidation of CO in H2 rich streams (CO-PrOx) over a cerium-copper oxide (CeCu) and a gold catalyst supported on cerium-iron oxide (Au/CeFe) is presented. The gold catalyst is very active ...