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Mostrando ítems 11-20 de 25
Estudo das eletrodeposições de lítio e gálio sobre Au(111) e HOPG utilizando líquido iônico como eletrólito
(Universidade Federal de São Carlos, 2009-03-06)
In the present work, the electrodepositions of lithium and gallium on Au(111) and HOPG (highly oriented phyrolytic graphite) were studied using ionic liquids (ILs) as electrolytes and employing the following techniques: ...
Aplicação de nanopartículas em filmes utilizados em embalagens para alimentos
(Universidade Federal de São Carlos, 2009-04-30)
Dispersions composed of chitosan (CS) were obtained by the template polymerization (CS-PMAA) and ionotropic gelatinization (CS-TPP). The nanoparticles were analyzed by FT-IR analysis, particle size, zeta potential, electron ...
Transporte e morfologia de esquemas de tintas epóxi poliamina equivalentes à base de solvente e água.
(Universidade Federal de São Carlos, 2003-07-21)
In the present work, anticorrosive properties of solvent borne and water based epoxy polyamine coatings were studied comparatively. First these studies were performed for the individual layers of these coatings, i.e., ...
Filmes finos de LaNiO3 depositados sobre substratos monocristalinos pelo método dos precursores poliméricos.
(Universidade Federal de São Carlos, 2004-08-06)
This work reports a systematic study on the deposition and characterization of LaNiO3 thin
films. This material is a ceramic conductor and presents a near metallic behavior, and is interesting for capacitor electrodes ...
Desenvolvimento de nanocamadas e nanocristais de Óxido de Zircônio aplicados a catálise
(Universidade Federal de São Carlos, 2007-09-14)
This work investigate the synthesis and characterization of a catalytic support of -alumina with a nanolayers and nanocrystals of ZrO2. The incorporation of the platinum began during and after the formation of the ...
Desenvolvimento de célula hidrotérmica para obtenção de compostos nanocristalinos de alta pureza
(Universidade Federal de São Carlos, 2008-01-31)
Due to the growing advances obtained in nanomaterials science, almost all technological sectors have invested in nanotechnology. It is expected technological improvements in a wide range of products, from the most conventional ...
Estudo da Influência do Sm e Er em Cerâmicas de PbTiO3.
(Universidade Federal de São Carlos, 2005-04-29)
In this work, it was obtained powders and thin films of (Pb1-xLnx)TiO3, Ln = Sm and Er, using a chemical method of synthesis, polymeric precursor method (Pechini). In this
way, the synthesis conditions were optimized in ...
Dióxido de estanho nanoestruturado dopado com terras raras como catalisador e sensor de gases.
(Universidade Federal de São Carlos, 2004-02-10)
This work presents and discusses results of the effects of doping on rare earth-doped nanosize SnO2, obtained using the polymeric precursor method and prepared at different annealing temperatures. Only the cassiterite phase ...
Pigmentos cerâmicos nanométricos a base de CeO2 dopado com Pr6O11, NiO e CoO.
(Universidade Federal de São Carlos, 2005-09-30)
In the last few years, the study of ceramic materials has increased very fast, mainly studies related to advanced ceramics. The several applications of these materials as ceramic pigments in nanometric scale justify more ...
Estudo de pós cerâmicos de PbTiO3 utilizando-se o método dos precursores poliméricos.
(Universidade Federal de São Carlos, 2000-11-30)
THE STUDY OF PbTiO3 (PT) CERAMIC POWDERS USING THE POLYMERIC PRECURSOR METHOD was started by the preparation of a precursor solution of metallic cations. Citric acid was used as quelation agent and ethylene glycol as ...