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Now showing items 621-630 of 653
Obtenção de sulfetos metálicos (M= Ni, Mo) pelo método solvotermal assistido por micro-ondas aplicados na reação de desprendimento de hidrogênio
(Universidade Federal de São Carlos, 2020-03-27)
In general, transition metal sulfides show good activity in the Hydrogen Evolution Reaction (HER). Some of these metals, such as Mo and Ni, arouse interest in the area of electrocatalysis, since they are more abundant and ...
Estudo espectroscópico por FTIR da conversão de etanol em catalisadores de Au suportados
(Universidade Federal de São Carlos, 2020-07-25)
In this work, an FTIR spectroscopic study of gold catalysts supported on monoclinic zirconia (with Au content of 2,5% w/w), was carried out in order to elucidate the surface nature of this catalyst in the dehydrogenation ...
Síntese de miméticos da urease de Canavalia ensiformis e avaliação mecanística da decomposição da ureia
(Universidade Federal de São Carlos, 2020-02-20)
Urease is a metalloenzyme found in many different organisms, which is also associated to virulence factors, such as pielonefritis. Hence, the study of urease inhibitors is necessary to control its activity. For a better ...
Mecanismos reacionais dos sistemas Pb/H2SO4 e Pb/PbO2/H2SO4
(Universidade Federal de São Carlos, 2012-01-26)
The thesis will address a modern view of electrochemistry for the discharge and charge reactions of Lead Acid Batteries study. Even though these batteries have existed for more than 200 years, electrochemical mechanisms ...
Desenvolvimento de dispositivo microfluídico descartável contendo arranjos de biossensores para a determinação multiplexada de espécies de interesse biológico em diferentes matrizes
(Universidade Federal de São Carlos, 2020-10-30)
16 sensing points for the construction of an array of biosensors. The components of this device have been individually evaluated and their construction design has been optimized for the best performance of the sensors. ...
Flow chemistry applied to hazardous reactions, and fluorophores synthesis with photophysics studies
(Universidade Federal de São Carlos, 2020-02-20)
Two distinct cases of continuous flow conditions applied to dangerous reactions are described. The first example is the continuous photooxygenation of a series of dienes that produces endoperoxides and / which are potentially ...
Sistema híbrido eletroquímico–fotoquímico para a mineralização do herbicida tebutiuron
(Universidade Federal de São Carlos, 2016-02-24)
An electrochemical-photochemical system (EC-PC)
using a dimensionally stable anode (DSA®) was used to oxidize and mineralize
tebuthiuron (TBT) herbicide, which is a potential contaminant to the surface and
ground water. ...
Desenvolvimento de um compósito inseticida-fertilizante microencapsulado para promover o aumento de produtividade agrícola
(Universidade Federal de São Carlos, 2017-09-29)
The main objective of this work was to develop a bioinsecticide-fertilizer model for pest insect control, formulated with extract of Azadirachta indica A. Juss. and humic acids as polymer matrix and fertilizer agent. ...
Síntese, caracterização e avaliação da atividade fotoeletrocatalítica de filmes finos de Sb2S3
(Universidade Federal de São Carlos, 2020-08-27)
Photoelectrochemical cells (PECs) have been shown to be a promising system for H2 generation from photoelectrolysis of water. Among the semiconductors materials that have been studied for PECs, Sb2S3 stands out due to its ...
Avaliação da atividade citotóxica de complexos fosfínicos de Ru(II) com ligantes mercaptos e aciltioureias
(Universidade Federal de São Carlos, 2020-12-11)
In this thesis, two series of new Ru-phosphine complexes containing mercapto or acylthiourea ligands were synthesized, characterized and assessed their cytotoxic activities. The first series is composed of five complexes ...