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Simulação do crescimento de filmes sobre metais. O caso voltamétrico
(Universidade Federal de São Carlos, 2008-07-02)
In this work the anodic film growth on metals has been studied, under voltammetric conditions by simulation. It was supposed that: a) the films are ultrathin, i.e., the concentration gradient contributions for the ionic ...
Síntese e propriedades fotocatalíticas de heteroestruturas TiO2/SnO2
(Universidade Federal de São Carlos, 2014-03-14)
Heterostructures, systems containing two dissimilar semiconductors in direct contact, has been applied in heterogeneous photocatalysis due to their electronic properties. This work aimed at studying heterostructures ...
Estudo da ruptura dielétrica durante a anodização de zircônio e o seu efeito sobre o processo de dopagem anódica de ZrO2
(Universidade Federal de São Carlos, 2012-05-09)
In this work the fundamental aspects of electrolytic breakdown in ZrO2 films were investigated. The electrolytic breakdown is a type of dielectric breakdown that occurs during galvanostatic growth of anodic oxides. To ...
Materiais híbridos obtidos pela adsorção de nanopartículas metálicas sobre fungos micelares pelo efeito biotemplate
(Universidade Federal de São Carlos, 2014-02-18)
The use of bio-design concepts is a promising strategy for obtaining materials with properties of great scientific and technological interest. There are numerous examples of materials obtained by employing concepts of ...
Síntese, caracterização e testes eletroquímicos de dióxido de manganês nanométrico como material de eletrodo de supercapacitores
(Universidade Federal de São Carlos, 2018-08-01)
Manganese dioxide was synthesized by a microwave-hydrothermal method using alternative, unprecedented and completely soluble reagents. For such, potassium permanganate and acetone were dissolved in different proportions ...
Nanocristais de TiO2 : relação entre parâmetros morfológicos, estruturais e fotocatálise
(Universidade Federal de São Carlos, 2010-02-26)
In this work, morphologically different TiO2 nanocrystals were synthesized through the OPM method with the objective of performing a comparative study related to photoactivity. Morphological characterization was performed ...
Desenvolvimento de nanocompósitos baseados em hidrogéis aplicados à liberação de nutrientes agrícolas
(Universidade Federal de São Carlos, 2014-03-21)
Nanocomposites were developed based on polyacrylamide hydrogels (PAAm) and methylcellulose (MC) reinforced with montmorillonite (MMT), undergoing the materials to subsequent hydrolysis process and evaluating their loading ...
Termodinâmica de líquidos iônicos via simulação computacional.
(Universidade Federal de São Carlos, 2006-10-04)
In this work classical molecular dynamics was used to study the
pure ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate,
[BMIM]+[BF4]-, and some solutions based in it. The OPLS-AA force field and
CHelpG derived ...
Estudo das propriedades fotoluminescentes do ZnS e ZnS:Eu obtidos pelo método solvotérmico assistido por microondas
(Universidade Federal de São Carlos, 2012-07-20)
This paper is about the synthesis, characterization and studies of nanostructures of ZnS and ZnS:Eu3+ prepared by microwave-assisted solvothermal method. The influence of the synthesis time in the microwave on the samples ...
Confinamento de líquidos em nanoescala
(Universidade Federal de São Carlos, 2012-02-27)
The effects on the reduction of space on the structural properties of two liquids and a mixture thereof were analyzed with a definition of nanoscale confinement, based on carbon nanotubes. The methodology involves the use ...