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Estudo microgravimétrico da formação de filmes de prata eletrodepositados
(Universidade Federal de São Carlos, 2009-09-04)
In this thesis, a voltammetric coupled to microgravimetry investigation about the electrodeposition of silver over polycrystalline platinum in acid medium was performed. Microgravimetry is helpful to understand the effect ...
Eletrodeposição de nanoestruturas de cobalto em alumina anódica porosa e sua caracterização magnética
(Universidade Federal de São Carlos, 2009-08-27)
In this thesis, the results regarding the investigation about the cobalt electrodeposition in templates of porous anodic alumina are presented. The doctorade is divided in four main sections. The _rst one has consisted in ...
Estudos do crescimento anódico de óxidos e da deposição de apatitas sobre a liga biocompatível Ti-13Nb-13Zr
(Universidade Federal de São Carlos, 2009-10-30)
Studies on the anodic growth of oxide films passivating the biocompatible alloy Ti-13Nb-13Zr (m/m) and the formation of hydroxyapatite (HA) films on these oxides were carried out in this work. The oxides were grown either ...
Estudos eletroquímicos das ligas biocompatíveis Ti-50Zr (at.%) e Ti-13Nb-13Zr (m/m).
(Universidade Federal de São Carlos, 2004-08-23)
Studies on the anodic growth of the oxides that passivate the biocompatible alloys Ti-50Zr (at.%) and Ti-13Nb-13Zr (m/m), on the electrochemical/electrical parameters and the morphology, composition and structure of these ...
Desempenho eletroquímico de compósitos de nanotubos de carbono como anodos para baterias de íon-lítio
(Universidade Federal de São Carlos, 2008-10-10)
In this work CNTs composite for use as Li-ion anode materials had been investigated. The electrochemical properties of the electrodes were measured by galvanostatic charge-discharge testes, cyclic voltammetric analysis and ...
Preparação e caracterização de eletrodos de polímeros condutores sobre carbono vítreo reticulado (RVC) para a aplicação em baterias secundárias.
(Universidade Federal de São Carlos, 2006-03-22)
The general purpose of this work is the optimization of
the conducting polymer deposition on RVC and the use of these electrodes in an allpolymeric
ion-lithium battery, which means an anode and a cathode made of ...
Preparação e caracterização de compósitos de polianilina (DMcT Cu(II)) / fibra de carbono como catodos em baterias secundárias.
(Universidade Federal de São Carlos, 2004-12-17)
The composites were obtained by cyclic voltammetry and the
incorporation of Cu(II) to the Pani(DMcT) / C fiber composite was carried out by two
methods: A) Cu(II) added to the polymerization electrolyte along with the ...
Produção e caracterização de eletrodos de Ti-Pt/PbO2 dopados e seu uso no tratamento eletroquímico de efluentes simulados
(Universidade Federal de São Carlos, 2006-05-03)
Ti-Pt/PbO2 electrodes were obtained by electrodeposition of
PbO2 films at 65 °C and with different dopant(s) (Fe, Co, F, Fe and F, Co and F)
contents in the oxide matrix, which were controlled under pre-established ...
Estudo de propriedades de filmes de óxidos anódicos crescidos em diferentes eletrólitos ácidos sobre o biomaterial Ti-50Zr at.%
(Universidade Federal de São Carlos, 2008-05-27)
Studies on the influence of the nature of the growth electrolyte on the properties of oxide films grown on the Ti-50Zr at.% alloy were carried out. The results obtained through the different measurements done (chronoamperometry, ...
Mecanismos reacionais e os processos de carga e descarga no caso de eletrodos planos de Pb em ácido sulfúrico e formação de eletrodos planos de PbO2 partindo de eletrodos de Pb
(Universidade Federal de São Carlos, 2007-10-04)
Two systems that form the basis of the lead-acid batteries were studied. The first system was the lead/sulfuric acid (Pb/H2SO4) interface. This interface is equivalent to negative electrode of lead acid batteries. The ...