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Estudos cinéticos e fotoquímicos de compostos de Ru(II) com ligantes bipiridínicos e bifosfínicos de fórmula geral cis- [RuCl2(P-P)(N-N)] (P-P = bifosfinas e N-N N-heterocíclicos bidentados)
(Universidade Federal de São Carlos, 2010-10-14)
In this thesis it were studied substitution reactions in ruthenium complexes of the type cis-[RuCl2(P-P)(N-N)] and cis-[RuCl2(dppb)(N-O)] (P-P = dppm, dppe, dppp and dppb; N-N = bipy, Me-bipy, MeO-bipy, Cl-bipy and fen; ...
Determinação simultânea de íons metálicos utilizando voltametria de redissolução anódica e métodos de calibração multivariada
(Universidade Federal de São Carlos, 2010-10-14)
This work describes the determination of Cu2+, Cd2+, Pb2+, Zn2+ and Co2+ using electroanalytical techniques and analyzing the data with chemometric tools. First, an univariate approach was used to investigate RMSEParately ...
Estudos dos mecanismos de resistência de genótipos de algodão submetidos à diferentes condições bióticas e abióticas
(Universidade Federal de São Carlos, 2022-12-16)
Cotton is a cultivar of economic interest, with a worldwide turnover around 17 billion dollars per year. Its supply is marked by several interconnected factors such as market signals, climatic aspects and pest pressures. ...
Atividades experimentais investigativas como contribuição ao desenvolvimento de modelos mentais de conceitos químicos
(Universidade Federal de São Carlos, 2013-02-22)
In this study, during the school year, the evolution of mental models from first grade high school students about different chemical concepts was investigated by the use of experimental inquiry activities. The research was ...
Investigating the potential of polysulfides obtained via inverse vulcanization as sustainable fertilizers
(Universidade Federal de São Carlos, 2022-11-07)
Global food security is one of the biggest challenges we face today, and to this end, establishing sustainable strategies towards the development of more efficient and safer agricultural products is indispensable. Sulfur ...
Materiais para aplicações eletroquímicas: otimização da síntese de grafeno/TiO2-RuO2 e estudo da retificação de corrente iônica em nanoporos
(Universidade Federal de São Carlos, 2020-05-19)
The current energy outlook points to the need to implement methodologies that value the reduction of energy consumption, as well as the use of cleaner and more sustainable processes of production, conversion, and storage ...
Estudo teórico de nano sistemas de azulenos: azulfenos, ANTs, poliazulenos e polinaftalenos
(Universidade Federal de São Carlos, 2020-08-03)
Azulene-based nanographene-like materials are predicted and studied to reveal the molecular properties of these new materials. C48H18/(G-48), C68H22/(G-68), and C88H26/(G-88) nanographenes and their isomers based on azulene ...
Complexos fosfínicos de Ru(II)/mercaptos contendo ligantes N,N-heterocíclicos: atividade citotóxica e mecanismo de ação
(Universidade Federal de São Carlos, 2022-12-16)
The main objectives of this study were the synthesis, characterization and biological studies of two series of ruthenium phosphine compounds containing different mercapto ligands, and contrasting in N,N-heterocyclic ligands ...
Estudo empírico-teórico de compósitos baseados em polímeros condutores para conversão e armazenamento de energia
(Universidade Federal de São Carlos, 2018-10-26)
The fast obsolescence of still functional devices causes an extensive e-waste generation and an exacerbated natural resources consumption for the manufacture of new products. In this sense, the development of abundant ...
Síntese e caracterização de nanotubos de TiO2 preparados eletroquimicamente
(Universidade Federal de São Carlos, 2016-04-20)
In the field of nanotechnology, the titanium dioxide (TiO2) has been widely studied for its optical and electrical properties. This oxide is an n-Type semiconductor and is found naturally in
different crystalline phases. ...