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Mostrando ítems 1-10 de 19
Self-healing silane coatings of cerium salt activated nanoparticles
(Wiley VCH Verlag, 2016-07)
This work investigates the effect of cerium salt activated nanoparticles as nanoreservoirs on the self-healing properties of silane hybrid coatings deposited on electro-galvanized steel substrates. The substrates were ...
Molecular dynamics investigation of the structural and energetic properties of CeO2-MO: X (M = Gd, La, Ce, Zr) nanoparticles
(2021-12-07)
CeO2-based materials have played a critical role in catalysis, where the substrate particles have reduced in size year by year due to experimental achievements in synthesis control. Thus, there is increasing interest to ...
Improvement in the Reduction Behavior of Novel ZrO(2)-CeO(2) Solid Solutions with a Tubular Nanostructure by Incorporation of Pd
(AMER CHEMICAL SOC, 2010)
In this work, 1 wt % Pd/ZrO(2)-CeO(2) mixed oxide nanotubes with 90 mol % CeO(2) were synthesized following a very simple, high-yield procedure and their properties were characterized by synchrotron radiation X-ray ...
Estudo de microscopia eletrônica de transmissão in situ de nanoestrutura de óxidos mistos em altas temperaturas
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2018-09-19)
This work addresses the characterization of the high temperature reactions between different nanoparticles oxides, CeO2-ZrO2 and CeO2-SnO2, by the direct observation of the phenomenon by in situ Transmission Electron ...
A comparative investigation of metal-support interactions on the catalytic activity of Pt nanoparticles for ethanol oxidation in alkaline medium
(2016-04-15)
The effects of interactions of Pt nanoparticles with hybrid supports on reactivity towards ethanol oxidation in alkaline solution are investigated. Studies involve catalysts with identical Pt nanoparticles on six hybrid ...
Changes induced by transition metal oxides in Pt nanoparticles unveil the effects of electronic properties on oxygen reduction activity
(2019-01-01)
Although the relevance of electronic effects in the electrocatalysis of the oxygen reduction reaction has been recognized, the impossibility of separating the effects of composition and particle size for Pt-based materials ...
Mesoporous thin films: synthesis, characterization and applications in sensing
(Asociación Química Argentina, 2019-12)
Las películas delgadas de óxidos mesoporosos (PDOMPs) han recibido mucha atención en las últimas décadas, principalmente debido a su arreglo controlado de poros con diámetro en el rango 2 - 50 nm y su versatilidad para el ...
Influência de óxidos de metais de transição na eletrocatálise da reação de redução do oxigênio em nanopartículas de Pt e de Pd
(Universidade Estadual Paulista (Unesp), 2019-01-15)
Nesse trabalho foram estudados os efeitos na eletrocatálise da reação de redução de oxigênio da incorporação de óxidos (CeO2, SnO2, TiO2, ZrO2 e WO3) nos suportes de nanopartículas de Pt e de Pd. Os catalisadores foram ...
Estudio de propiedades electrónicas, estructurales y vibracionales de cerámicos de interés en microelectrónica y celdas de combustible
(Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura, 2013-04)
En este trabajo se presentan contribuciones al estudio de propiedades elásticas y termo-acústicas de familia de materiales cerámicos, que son usados como materiales estructurales, en forma cristalina o nano-estructurada y ...
Preparación y caracterización de sistemas Pt/ZrO2 y Pt/CeO2 para la oxidación de glicerina
(2012)
En este documento se describe un método de síntesis utilizado para la obtención de materiales sólidos mesoporosos con altas áreas superficiales basados en óxido de circonio (IV), óxido de cerio (IV), y sistemas Pt/ZrO2, ...