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Estudo da decomposição térmica de oxalato de estrôncio dopado com cério(III) como precursor de materiais luminescentes
(Editora Unesp, 2002-01-01)
Este trabalho trata da obtenção de SrC2O4, Ce2(C2O4)3, e SrC2O4 dopado com diferentes porcentagens de Ce3+ como precursores do luminóforo azul Sr2CeO4. Os precursores preparados foram estudados por TG e DTA. Uma mistura ...
Highly active Rb/Cu/YCeO2 catalyst for the storage of nitric oxide under lean conditions
(ELSEVIER SCIENCE BV, 2016)
A novel Pt-free Rb/Cu/YCeO2 catalyst was applied to the adsorption of NO under oxidizing conditions. The results show a much greater performance of this catalyst relative to a Pt/Ba/Al2O3 catalyst. The results suggest that ...
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 ...
Time-resolved spectroscopy studies of Gd2SiO5 : Ce3+ from spherical particles
(Elsevier B.V., 2002-10-07)
This paper reports on time-resolved emission and excitation spectra measurement studies of Gd2SiO5:Ce3+ in powder or pellet samples, from spherical particles, in order to assign the Ce3+ ion transitions into two different ...
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 ...
Síntese e caracterização textural do catalisador CeO2/TiO2 obtido via sol-gel: fotocatálise do composto modelo hidrogenoftalato de potássio
(Editora Unesp, 2005-01-01)
Este trabalho descreve um método de modificação do TiO2 obtido pelo processo sol-gel, através da adição de óxido de cério no momento da síntese. O material foi caracterizado por adsorção de N2 a 77K. A adição de CeO2 aumenta ...
CeO2 and Co3O4-CeO2 nanoparticles: effect of the synthesis method on the structure and catalytic properties in COPrOx and methanation reactions
(Springer, 2016-04)
CeO2 and Co3O4–CeO2 nanoparticles were synthesized, thoroughly characterized, and evaluated in the COPrOx reaction. The CeO2 nanoparticles were synthesized by the diffusion-controlled precipitation method with ethylene ...