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Estudo da corrosão atmosférica do aço AISI 1020 usando a técnica de ruído eletroquímico e microscopia óptica
(Universidade Federal de São Carlos, 2019-12-13)
The objective of this work was to study the corrosion of AISI 1020 exposed in an atmosphere containing acetic acid (HAc) vapor. Electrochemical noise (RE) oscillations and surface micrographs of the samples were obtained ...
Ternary nanocomposites based on cellulose nanocrystals, conductive materials and electrospun fibers applied in sensors for detection of heavy metals in water
(Universidade Federal de São Carlos, 2019-03-28)
The monitoring of water resources destined for consumption is a subject of outmost importance for population and ecosystems life quality maintenance. The degradation of these resources with heavy metals, usually associated ...
Nanoemulsões de óleos essenciais: mecanismos de estabilidade e interação com pectina em bionanocompósitos para aplicação em embalagens ativas
(Universidade Federal de São Carlos, 2019-03-22)
Microbial growth is among the challenges impairing food preservation and shelf-life. Essential oils (EO) featuring antimicrobial and antioxidant activities denote an alternative for lessening the contents of synthetic ...
Microestruturas de zeína produzidas pela técnica de fiação por sopro em solução visando à incorporação e liberação lenta de vitamina C
(Universidade Federal de São Carlos, 2019-05-31)
The development of functional micro/nanostructures for use in the agricultural area is relevant and has the potential to reduce the consumption of inputs with improved efficiency of the final product. In this context, the ...
Efeito da promoção de turbulência na hidrodinâmica de um reator tipo filtro-prensa e na degradação eletroquímica do bisfenol S
(Universidade Federal de São Carlos, 2019-06-28)
The kinetics of many electrochemical processes is limited by mass transport, especially at low concentrations of the reactant. The use of turbulence promoters in parallel-plate reactors increases the hydrodynamic turbulence ...
Análise do sistema Fe2O3 - SnO2 sinterizado: propriedade de transporte eletrônico
(Universidade Federal de São Carlos, 2019-09-30)
Hematite (α-Fe2O3) is a very abundant chemical compound in nature, has interesting electrical and magnetic properties, which consequently makes this oxide an advanced functional material. The literature reports that Sn ...
Produção de Na-β″-alumina e o seu transporte iônico do Na+
(Universidade Federal de São Carlos, 2019-02-25)
In the present doctorate thesis, in order to study the Na+ ion transport in Na-βʺ-alumina(cr), we started by studying the production stages of Na-βʺ-alumina(cr) sodium ion conductive membranes. In order to do so, we studied ...