Buscar
Mostrando ítems 1-10 de 69
Simulation of CO Preferential Oxidation (COPrOx) Monolithic Reactors
(De Gruyter, 2014-01)
In this work, a COPrOx monolithic reactor with a CuO/CeO2/Al2O3 catalytic washcoat was modelled to purify a H2 stream for a 2 kW PEM fuel cell. Preliminary simulations included isothermal monoliths operating between 423 ...
CO preferential oxidation (CO-PROx) on La(1-x)Ce(x)NiO(3) perovskites
(ELSEVIER SCIENCE BV, 2011)
La(1-x)Ce(x)NiO(3) perovskites have been prepared, characterized by XRD. TPR and surface area and tested as catalysts for CO-PROx, with a feed of 2.5% CO, 5% O(2), 33% H(2) and N(2) to 100%. The samples exhibited an XRD ...
Co/ZrO2, Co/CeO2 and MnCoCe structured catalysts for COPrOx
(Elsevier, 2013-11)
Cordierite monoliths washcoated with MnCoCe(CP), Co(I)/ZrO2 and Co(I)/CeO2 catalysts were prepared and studied for the CO preferential oxidation (COPrOx) reaction. Among them, the MnCoCe/M system presented the best CO ...
Desenvolvimento de catalisadores de ??xido de cobre e c??rio modificados com sam??rio para a rea????o de CO-PROX
(Instituto de Qu??micaPrograma de P??s Gradua????o em Qu??micaIQbrasil, 2016-05-12)
A million-channel CO-PrOx microreactor on a fingertip for fuel cell application
(Elsevier Science Sa, 2011-03)
A silicon micromonolith containing ca. 40000 regular channels of 3.3μm in diameter per square millimeter has been successfully functionalized with an Au/TiO2 catalyst for CO preferential oxidation (CO-PrOx) in the presence ...
CO removal for hydrogen purification via Water Gas Shift and COPROX reactions with monolithic catalysts
(Elsevier, 2022-02)
A combination of Water Gas Shift (WGS) and CO preferential oxidation (COPROX) reactions is considered a promising approach for CO removal in an H2 feed employed for PEM fuel cells. Honeycomb monolithic catalysts were studied ...
Co/MCM41 catalyst in the COProx reaction prepared by supercritical CO2 reactive deposition
(Elsevier Science, 2017-02)
Co/MCM41 catalyst with 4.3 wt % Co (Co/sc) has been prepared by supercritical CO2 reactive deposition (‘scfrd’) and characterized by different physicochemical techniques. This synthesized method was compared with others ...
Crecimientos in situ de películas nanoestructuradas de óxidos para el desarrollo de micro-reactores aplicados en catálisis heterogénea
(2022-07-27)
El objetivo general de esta tesis es investigar el proceso de crecimiento de películas nanoestructuradas de óxidos, obtenidas directamente a partir de sustratos metálicos basados en cobre (cobre, latón, alpaca) para el ...
Spectroscopic characterization of Mn-Co-Ce mixed oxides, active catalysts for COPROX reaction
(Pergamon-elsevier Science Ltd, 2013-03-29)
Mn-Co-Ce mixed oxides are active and selective catalysts for the CO preferential oxidation (COPROX), which is a promising process for the purification of hydrogen streams. In this work, we report a careful spectroscopic ...
Study of the synthesis of CeO2 nanoparticles for their use in CO preferential oxidation (COPrOx)
(Elsevier, 2013-03)
CeO2 nanoparticles were synthesized by the controlled precipitation method from a Ce(NO3)3 solution. To this end, two additives were used alternatively: ethylene glycol (EG) and tetramethylammonium hydroxide (TMAH). Their ...