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Now showing items 11-20 of 221
Metodologias de síntese e modificações estruturais em meso-Tetraarilporfirinas
(Universidade Federal de São Carlos, 2016-03-21)
In this thesis we describe studies towards the synthesis of porphyrins aiming the optimization of literature protocols leading to more environmental friendly approaches. Also, structural modifications and photophysical
...
Complexos de rutênio com ligantes de interesse biológico: aspectos químicos, estruturais e avaliação de suas atividades biológicas
(Universidade Federal de São Carlos, 2013-09-20)
This thesis focus on the synthesis, characterization and evaluation of the biological properties of three series of phosphinic ruthenium complexes containing bioligands of purine and pyrimidine derivatives. Series 1: ...
Eletrossíntese de nanoestruturas de polianilina
(Universidade Federal de São Carlos, 2010-01-18)
The potentiodynamic and potentiostatic electrochemical synthesis were performed for the eletrosynthesis of nanofibers and nanoparticles of polyaniline on gold electrodes without the use of physical or chemical templates. ...
Degradação eletrooxidativa e biológica de corantes em meios aquosos
(Universidade Federal de São Carlos, 2011-04-01)
The electrochemical degradation of the Reactive Red 141, Acid Blue 62 (AB 62), Direct Black 22, and Disperse Orange 29 dyes in a 0.1 M Na2SO4 solution with and without NaCl addition was investigated with Ti-Pt/β-PbO2 ...
Preparação e caracterização mecânica, térmica e elétrica de misturas de poliuretano derivado do óleo de mamona e poli (o- metoxianilina) para avaliação na aplicação como sensores para língua eletrônica
(Universidade Federal de São Carlos, 2010-07-28)
The incorporation of conducting polymer into a conventional polymer matrix has received considerable attention in the last decade because of the possibility of combining the good processability and mechanical performance ...
Catalisadores de Pd/Al2O3 modificados com La: preparação, caracterização e propriedades catalíticas nas reações de reforma a vapor e autotérmica do metano
(Universidade Federal de São Carlos, 2010-11-26)
The Pd catalysts were prepared by wet impregnation method of the supports using an aqueous solution of palladium nitrate. (x)La2O3-Al2O3 carriers, with x = 0 to 20 wt %, were obtained by wet impregnation and sol gel methods. ...
Estudo da variação do perfil químico de Citrus sinensis sobre Citrus limonia após a inoculação da bactéria Xylella fastidiosa
(Universidade Federal de São Carlos, 2011-06-22)
The present work describes the study of variation in the chemical profile of citrus after inoculation of Xylella fastidiosa, in charge of the Citrus Variegated Chlorosis is one of the most serious diseases that cause damage ...
Caracterização e aplicação de zeólitas naturais
(Universidade Federal de São Carlos, 2010-03-05)
Zeolites are aluminosilicates with a three dimensional framework structure bearing AlO4 and SiO4 tetrahedra. These are linked to each other by sharing all of the oxygen to form interconnected cages and ...
O método investigativo em aulas teóricas de química: estudo das condições da formação do espírito científico
(Universidade Federal de São Carlos, 2011-02-25)
This work aims to understand the conditions that can lead to the formation of the scientific spirit applying investigative problems in theoretical classes of chemistry. The main theoretical reference that guided this ...
Fracionamento de Ba, Cr, Cu, Ni e Zn em solos tratados com lodo de esgoto em experimentos de longa duração
(Universidade Federal de São Carlos, 2010-05-14)
As the agronomic importance of the provision of agricultural sewage sludge, and its growing concerning environmental point of view, in this work decomposition procedures of soil samples subjected to the addition of sewage ...