Buscar
Mostrando ítems 1-10 de 709
Estudio de catalizadores de platino soportado en óxidos de cerio modificados con niobio aplicados a la reacción de desplazamiento de gas de agua
(2014-09-02)
Se sinterizaron óxidos de cerio-niobio por dos métodos: coprecipitación de Ce-Nb e impregnación de ceria con niobia. La evaluación de la capacidad redox de los soportes sugirió que la niobia en contacto íntimo con la ceria ...
STUDY ON THE SYNTHESIS OF MESOPOROUS CERIA IN THE PRESENCE OF GLUCOSE AND ACRYLAMIDE
(Sociedad Chilena de Química, 2009)
Síntese e caracterização de eletrólitos compósitos à base de céria e sais fundidos
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE MATERIAIS, 2016-03-31)
Solid electrolyte is the part of the fuel cell has three essential functions: separate
reagents, blocking electronic current and have high ionic conductivity of the elements
that compose it. Composite electrolytes ...
Productivity and order versus the superficial behavior of the prox reaction on a copper-ceria catalyst Monte Carlo simulations
(Elsevier, 2016)
Monte Carlo simulations for the productivity and order of the PROX/copper-ceria catalyst reaction with different superficial %Cu are made. The results are correlated with the behavior of the different surface species (CO, ...
Insight into Ni/Ce1−xZrxO2−δ support interplay for enhanced methane steam reforming
(Pergamon-Elsevier Science Ltd, 2019-02-05)
Nickel catalysts supported in zirconium-doped ceria were optimized for methane steam reforming (MSR) at severe reaction conditions, i.e. low temperature and stoichometric water/methane feed ratio. The solids prepared were ...
Zr promotion effect in CO2 methanation over ceria supported nickel catalysts
(Pergamon-Elsevier Science Ltd, 2019-01)
Carbon dioxide methanation is an interesting way to reduce greenhouse effect gases emission and, simultaneously, provide a renewable energy source of methane. Ceria and 15 at.% Zr-doped ceria supported nickel catalysts ...
Preparation and characterization of ceria nanospheres by microwave-hydrothermal method
(Elsevier B.V., 2008-12-15)
Crystalline ceria (CeO2) nanoparticles have been successfully synthesized by a simple and fast microwave-hydrothermal method at 130 degrees C for 20 min. As-synthesized CeO2 powders were calcinated at 500 degrees C for 1, ...
Preparation and characterization of ceria nanospheres by microwave-hydrothermal method
(Elsevier B.V., 2008-12-15)
Crystalline ceria (CeO2) nanoparticles have been successfully synthesized by a simple and fast microwave-hydrothermal method at 130 degrees C for 20 min. As-synthesized CeO2 powders were calcinated at 500 degrees C for 1, ...