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Now showing items 31-40 of 54
Estudo de distintos processos oxidativos avançados eletroquímicos (e-POA) e teste de um reator solar em escala semi-piloto
(Universidade Federal de São Carlos, 2021-02-12)
In this work, two different advanced oxidation processes (AOP) were investigated: i) electrochemical processes (electro FeredFenton and photoelectro Fered-Fenton with BDD and DSA® electrodes under UVA/UVC irradiation (9 ...
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 ...
Precious, strategic and toxic elements in electronic waste: bibliometric evaluation, proposition of reference material and direct analysis by laser-based techniques and fluorescence spectrometry
(Universidade Federal de São Carlos, 2021-03-26)
Waste electrical and electronic equipment (WEEE) is among the fastest growing types of solid waste in the world. In addition, this is a complex waste stream when it comes to recycling, due to the large variety of valuable ...
Esfoliação e funcionalização de nanofolhas de MoS2: desenvolvimento de novos materiais elastoméricos
(Universidade Federal de São Carlos, 2021-09-30)
Two-dimensional materials, such as MoS2, have been extensively studied in recent decades due to their excellent properties in electronics, electrocatalysis, optics and mechanics. A major focus in recent research resides ...
Estudo teórico e experimental da interação de elétrons com moléculas de interesse astroquímico
(Universidade Federal de São Carlos, 2021-09-08)
We performed a theoretical and experimental investigation on electron (e⁻) scattering by molecules of astrochemical interest. Theoretically, we obtained elastic differential (DCSs), integral (ICSs) and momentum-transfer ...
Modificação de matrizes em análise espectroscópica por Raman e infravermelho médio
(Universidade Federal de São Carlos, 2021-12-16)
The spectroscopy methods of analysis, as Mid Infrared (MIR) and Raman spectroscopy, are based on the interaction of light and matter. These techniques present advantages, such as, non-destructive analysis, low cost and ...
Explorando reações de funcionalização C(sp2)-H fotocatalisadas por porfirinas em condições de fluxo contínuo e o uso da eletrocatálise para promover acoplamentos C-S
(Universidade Federal de São Carlos, 2021-06-28)
Photoarylation reactions (Chapter I) were studied in both batch and continuous flow conditions starting from arenodiazonium salts and activated olefins to yield α-aryl ketones/aldehyde derivatives. Such reactions were ...
Determinação de impurezas inorgânicas em medicamentos: avaliação de preparo de amostra e medidas espectroanalíticas
(Universidade Federal de São Carlos, 2021-06-16)
Green sample preparation procedures were developed in this dissertation for determination of elemental impurities in drugs and dietary supplements by argon-based plasma spectroanalytical methods according to Chapters 232, ...
Estudo da resposta de tecidos de Citrus sinensis em fases ontogenéticas distintas à infecção por Candidatus Liberibacter asiaticus
(Universidade Federal de São Carlos, 2021-06-29)
The objective was to develop analytical methods to evaluate the variation in the chemical profile between specimens of juvenile and mature tissues of Pera orange (C. sinensis) in cuttings and grafted on Rangpur lime (C. ...