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Mostrando ítems 641-650 de 1062
Síntese assistida por micro-ondas e caracterização de óxidos de manganês para aplicação em dispositivos de armazenamento de energia
(Universidade Federal de São Carlos, 2015-12-15)
The oxides Mn3O4, LiMn2O4and their doped derivatives, LiMnij98Gaojo2O3j98Sojo2, LiMni,9oGao,ioO3,9oSo,io, LiMni,98Alo,o2O3,98So,o2 and LiMni,9oAlo,ioO3,9oSo,io were produced by means of an alternative route: the ...
Síntese e estudo das propriedades fotoluminescentes e fotocatalíticas dos cristais de Ag2-2xMxWO4, (M = Mg e Zn)
(Universidade Federal de São Carlos, 2014-06-03)
This study aimed to investigate the photoluminescence and photocatalytic properties of the alpha phase of silver tungstate ( α-Ag2WO4 ) doped with Mg and Zn (where M = Mg or Zn and x = 0; 0,01; 0,02; 0,04 ou 0,08). The ...
Desenvolvimento de uma nova rota de síntese hidrotermal assistida por micro-ondas para a obtenção de nanopartículas de espinélios de manganês e lítio dopados com alumínio para aplicação em baterias de íons lítio
(Universidade Federal de São Carlos, 2018-03-01)
Spinel of manganese and lithium undoped and doped with aluminum were obtained by an unpublished, energy saving, short time, and low temperature synthesis: microwave-assisted hydrothermal route. Undoped spinel was synthesized ...
Obstáculos epistemológicos no processo de alfabetização científica: um estudo para a formação do professor das séries iniciais do ensino fundamental
(Universidade Federal de São Carlos, 2016-10-28)
This work presupposes the importance of the teaching of Science so that the students can acquire the cultural elements and the scientific language and develop the necessary skills to the critical and aware exercise of ...
Mecanismos eletroquímicos nos processos de descarga do sistema PbO2/H2SO4
(Universidade Federal de São Carlos, 2017-11-17)
The goal of this work was to seek a mechanistic and morphological understanding of the discharge process of lead-acid batteries’ positive plates, which exhibits a complex porous structure. Due to this fact, nonporous ...
Avaliação das propriedades antitumorais de complexos de rutênio(II) contendo os ligantes lapachol ou lausona
(Universidade Federal de São Carlos, 2018-06-29)
Metal complexes containing ligands that present biological activity have been attracting interest in the field of development of new drugs for the treatment of cancer. Lapachol and lawsone are examples of important natural ...
Encapsulamento de compostos orgânicos voláteis em matrizes biopoliméricas para o controle de insetos pragas
(Universidade Federal de São Carlos, 2017-07-06)
Traditional pesticides were introduced to the agriculture in order to control pests, which are harmful to the crops. However, this indiscriminate use of synthetic pesticides has been causing environmental disorders, and ...
Interações de sistemas nanoestruturados de zircônia/ácido oleico em diferentes solventes orgânicos
(Universidade Federal de São Carlos, 2017-10-27)
The promising technologies to modify the future, demands materials with special properties. The functionalized nanocrystals represents the building blocks that can leverage these technologies. This project aims at the study ...
Estudo químico de Phytophthora Nicotianae e sua influência no perfil químico de plântulas de Citrus Sinensis
(Universidade Federal de São Carlos, 2018-05-29)
“PHYTOPHTHORA NICOTIANAE CHEMICAL STUDY AND ITS INFLUENCE ON THE CHEMICAL PROFILE OF CITRUS SISENSIS SEEDLINGS.” The present work describes the study of the variation of the citrus chemical profile after the inoculation ...
Hidróxidos duplos lamelares como matrizes para interação com fósforo: avaliação físico-química e aplicações
(Universidade Federal de São Carlos, 2018-02-27)
LAYERED DOUBLE HYDROXIDE AS MATRICES FOR PHOSPHATE
INTERACTION: PHYSICO-CHEMICAL ASSESSMENT AND APPLICATIONS:
Phosphorus is an essential element for all living organisms and is indispensable for diverse
economical ...