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Itens para a visualização no momento 21-30 of 194
Espectroscopia eletrônica de moléculas halogenadas
(Universidade Federal de São Carlos, 2022-09-29)
We present a theoretical-experimental investigation of the valence state excitation of dichloromethane (CH2Cl2) and trichloromethane (CHCl3) molecules in the gas phase. The CH2Cl2 molecule was investigated using electron ...
Detecção e degradação eletroquímica de dexametasona usando eletrodos de diamante dopado com boro
(Universidade Federal de São Carlos, 2022-12-16)
Dexamethasone is a glucocorticoide, first synthesized in 1957, that is currently part of the World Health Organization's List of Essential Medicines. Thus, as na important drug, its potential for environmental contamination ...
Seleção de padrões internos para análise elementar em métodos instrumentais com plasma induzido
(Universidade Federal de São Carlos, 2023-03-08)
This thesis approaches the challenges and strategies to use the internal standardization calibration method in two instrumental methods, i.e. inductively coupled plasma optical emission spectrometry (ICP-OES) and microwave ...
Avaliação da atividade fotoeletrocatalítica dos filmes de CuO/NiOx, CuO/Cu2O/CuS e WO3/MoO3-x frente a fotoeletrólise da água para a produção de H2 verde
(Universidade Federal de São Carlos, 2023-02-24)
The use of solar energy is essential for the future of humanity. In this context, the conversion of this energy into chemical energy, using low-cost technologies, such as photoelectrochemical cells (PECs), has gained ...
Development of Hematite-based photoanodes
(Universidade Federal de São Carlos, 2023-02-17)
Hydrogen production via Water Splitting has been considered one of the best solutions for energy shortages and environmental pollution. The use of hematite (α-Fe2O3) as a photoanode in photoelectrochemical hydrogen production ...
Material particulado atmosférico de São Carlos: identificação das fontes de emissões e seus impactos à saúde humana
(Universidade Federal de São Carlos, 2023-08-30)
Air pollution by particulate matter (PM) is one of the main environmental risks to human health. PM has different sizes, emission sources, and a wide range of substances may be present in it. Given this scenario, the ...
Hidro- & deuterocarbamoilação do alceno de Karady-Beckwith: síntese estereosseletiva da asparagina e seus derivados N4-substituídos
(Universidade Federal de São Carlos, 2023-07-31)
The development of sustainable stereoselective methodologies for obtaining compounds of synthetic and biological relevance is highly important in contemporary times. In this regard, the synthesis of non-natural amino acids ...
Obtenção de nanomateriais de celulose contendo lignina residual a partir da madeira de seringueira e sua aplicação em filmes nanocompósitos com caseína
(Universidade Federal de São Carlos, 2023-10-11)
In light of the escalating global population and the mounting environmental concerns, the quest for sustainable and renewable solutions has emerged as a paramount focus in scientific exploration across diverse fields. ...
Obtenção de nanocelulose de palha de cana-de-açúcar com diferentes teores de lignina residual
(Universidade Federal de São Carlos, 2023-10-10)
Brazil stands out for its high production of sugarcane. This production generates a significant amount of byproducts, such as sugarcane straw. Due to its high cellulose content, converting straw into nanocellulose can be ...
Complexo de Ru(II)-perileno diimida para ativação do oxigênio singleto: agente teranóstico em melanoma
(Universidade Federal de São Carlos, 2023-09-13)
In this study, a new perylene diimide ligand functionalized at the 1,7-bay positions with two pyrrolidine molecules and at the imide positions with 5,10-amino-phenanthroline (PDI-Py) and a new electron donor-acceptor dyad ...