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Morfologia e propriedades estruturais de óxidos metálicos complexos: um enfoque teórico e experimental
(Universidade Federal de São Carlos, 2018-07-18)
Design, control and direct characterization of the properties of the surfaces are prerequisites for all practical applications of (nano) materials. Within this context, the present doctoral thesis is an experimental and ...
Dinâmica de colisões eletrônicas com moléculas orgânicas voláteis: seções de choque de ionização e diferenciais elásticas
(Universidade Federal de São Carlos, 2016-12-16)
ELECTRONIC COLLISIONS WITH VOLATILE ORGANIC MOLECULES: IONIZATION AND ELASTIC DIFFERENTIAL CROSS SECTIONS. In this work we report an
experimental investigation of the dissociative ionization processes induced by ...
Estudo computacional das interações entre nanopartículas de dióxido de titânio envolvidas no processo de coalescência orientada
(Universidade Federal de São Carlos, 2018-04-03)
Experimental and theoretical studies have shown that the aggregation of TiO2 anatase nanoparticles (NPs) occurs with preferential crystallographic orientation by the so-called oriented attachment mechanism (OA). The growth ...
Síntese e estudo das propriedades fotoluminescentes e fotocatalíticas dos cristais de Ag2-2xMxWO4, (M = Mg e Zn)
(Universidade Federal de São Carlos, 2014-06-03)
This study aimed to investigate the photoluminescence and photocatalytic properties of the alpha phase of silver tungstate ( α-Ag2WO4 ) doped with Mg and Zn (where M = Mg or Zn and x = 0; 0,01; 0,02; 0,04 ou 0,08). The ...
Mecanismos eletroquímicos nos processos de descarga do sistema PbO2/H2SO4
(Universidade Federal de São Carlos, 2017-11-17)
The goal of this work was to seek a mechanistic and morphological understanding of the discharge process of lead-acid batteries’ positive plates, which exhibits a complex porous structure. Due to this fact, nonporous ...
Hidróxidos duplos lamelares como matrizes para interação com fósforo: avaliação físico-química e aplicações
(Universidade Federal de São Carlos, 2018-02-27)
LAYERED DOUBLE HYDROXIDE AS MATRICES FOR PHOSPHATE
INTERACTION: PHYSICO-CHEMICAL ASSESSMENT AND APPLICATIONS:
Phosphorus is an essential element for all living organisms and is indispensable for diverse
economical ...
Estudo mecanístico de reações de estado sólido: o caso do sistema Pb/PbSO4/Na2SO4
(Universidade Federal de São Carlos, 2012-11-21)
In this work, the growth and reduction of PbSO4 in Na2SO4 solution under transient conditions was characterized. A novel methodology for the working-electrode surface preparation before stabilization enhanced the voltametric ...
Acondicionamento de hidroxiapatita nanoparticulada em sachês biodegradáveis para aplicação como fertilizante mineral
(Universidade Federal de São Carlos, 2015-07-24)
In 2013, the portion of the Brazilian
agrarian system in the gross domestic product reached 22.54% according to CEPEA.
The production of agricultural commodities is extremely dependent on imported
fertilizer, as 74.6% ...
Estudo do SnO2 como fotocatalisador para a degradação da rodamina B: fatores limitantes e estratégias para aumento da fotoatividade
(Universidade Federal de São Carlos, 2018-01-19)
The photocatalytic activity of SnO2 was assessed according to the surface processing used for its surface activation. Mechanical activation by grinding and hydrothermal treatments under different conditions were applied ...
Hidrogéis Nanocompósitos Termossensíveis aplicados no crescimento de Células–tronco Mesenquimais e Condrócitos para a engenharia tecidual
(Universidade Federal de São Carlos, 2018-09-27)
Injectable biomaterials have gained prominence in tissue engineering since they present a minimal invasive option for therapeutic delivery. However, longer gelation time, instability of physicochemical properties, cytotoxicity ...