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Now showing items 181-190 of 221
Estudo do crescimento e automontagem de nanocristais coloidais
(Universidade Federal de São Carlos, 2012-12-07)
In the last two decades a remarkable progress in nanomaterials knowledge has been done, mainly in the chemical synthesis of inorganic nanocrystals via colloidal processes. Several of these advances addressed the growth ...
Synthesis of g-C3N4/Nb2O5 heterostructures: study of photocatalytic properties
(Universidade Federal de São Carlos, 2019-04-22)
Semiconductors are promising catalysts for artificial photosynthesis, but to date, there is no consensus on the ideal photocatalyst for CO2 reduction. Among semiconductors used for CO2 reduction, Nb2O5 is a promising ...
Synthesis of N-heterocycles and building blocks using multicomponent, photochemical and electrochemical approaches
(Universidade Federal de São Carlos, 2020-02-17)
Multicomponent reactions and protocols mediated by light and electrochemistry are powerful tools for modern organic synthesis. Moreover, they obey several principles of green chemistry such as atom economy, catalysis, waste ...
Estudo de complexos metálicos de RuII, NiII, PdII e PtII com ligantes aciltioureias: atividade citotóxica e interação com biomoléculas
(Universidade Federal de São Carlos, 2019-12-20)
In this work, two series of phosphine complexes containing acylthiourea ligands were synthesized, characterizatied and evaluatied of the cytotoxic activities. The first series of compounds was composed of complexes with ...
Estudo de inibidores naturais e sintéticos de cisteíno proteases
(Universidade Federal de São Carlos, 2018-11-30)
This work describes in its first part the chemical study of the fungus Fusarium proliferatum looking for inhibitors of cysteine proteases, with two distinct approaches: i) The search for papain inhibitors, to understand ...
Estudo do método de obtenção de membranas assimétricas de polietersulfona contendo complexos de polieletrólitos
(Universidade Federal de São Carlos, 2020-04-03)
Compared with traditional separation methods, polymeric membranes have low operation cost, fast separation rate and versatility. One interesting way of changing membrane properties is mixing additives into the polymeric ...
Síntese e caracterização de vanadatos de prata e formação de nanopartículas de prata por eletro-Irradiação
(Universidade Federal de São Carlos, 2018-02-19)
Due to its physico-chemical, bactericidal and photocatalytic properties, Silver vanadium oxides (SVOs) have attracted increasing attention due to their excellent physicochemical properties and diverse applications. The aim ...
Influência do ácido aspártico no processo de eletrodeposição de ligas de Cu-Sn-Ni. Avaliação da morfologia, composição, estrutura, adesão e resistência à corrosão dos filmes
(Universidade Federal de São Carlos, 2013-12-06)
This research work presents the main results on the development of electrolytic baths with no cyanides for the production of Cu-Sn and Cu-Sn-Ni alloys and also the morphological, chemical and structural characterization ...
Fotoluminescência de nanopartículas de Ni(OH)2 e avaliação catalítica de NiO na redução de NO com CO
(Universidade Federal de São Carlos, 2010-08-10)
In recent years, nanostructured oxides have attracted great interest from different areas of technology due to the possibility of developing new devices or electro-optical equipment. In principle, the physical and chemical ...
Desenvolvimento e caracterização de um banho não-cianetado para a eletrodeposição de ligas de Cu-Sn-Zn: caracterização dos eletrodepósitos
(Universidade Federal de São Carlos, 2014-05-16)
The electrodeposition of Cu-Sn-Zn ternary alloys onto AISI 1010 steel from an acid bath with EDTA or NTA salts was investigated, with various proportions of the metal ions in the baths. The concentration of these metals ...