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Envíos recientes

Doctorado en Química: Envíos recientes

  • Dimensión efectiva en escenarios de alta dimensionalidad 
    Gieco, María Antonella (2018-12-17)
    In applications involving high-dimensional data, frequently a few variables contain most of the relevant information. Identifying how many dimensions should be kept in the analysis is of paramount importance in representing ...
  • Desarrollo de nanomateriales para la captura de dióxido de carbono mediante reacción - adsorción a alta temperatura 
    Peltzer, Diana Jacqueline (2018-03-07)
    The aim of this thesis was to develop alkaline zirconate based materials that can react with carbon dioxide at high temperature through the carbonation reaction, allowing the CO2 capture in combustion reactions. The solids ...
  • Generación de adiciones minerales para el cemento a partir de residuos de centrales termoeléctricas de lecho fluidizado 
    Guilarducci, Anabela Guadalupe (2018-04-20)
    The present work finds its origin in the need to find an alternative that allows to reuse the waste of fluidized bed mineral coal combustion thermoelectric plants. The study is considered from two fronts that are well ...
  • Derivados indólicos y piridínicos en reacciones Diels-Alder polares. Un estudio teórico-experimental 
    Ormachea, Carla María (2018-03-16)
    The reactive behavior of a series of azaheterocyclic compounds (pyridines, pyrroles, and indoles) properly substituted has been theoretically studied, so that they can act as dienophiles in Diels-Alder processes. First, ...
  • Micro-reactores basados en películas microporosas funcionalizadas con nanopartículas 
    Papurello, Rocío Lourdes (2018-03-02)
    The objective of this Thesis is to investigate the development of films of new microporous materials that can act as means of dispersion of active phases, to be used in solid-gas catalytic reactions.Particularly, it focuses ...
  • Deshidrogenación oxidativa de etano empleando catalizadores estructurados. Efecto de la síntesis de la película y la geometría del sustrato en el desempeño catalítico 
    Brussino, Paula (2018-02-23)
    Most of the artefacts that we use everyday are manufactured from ethylene. This compound production consumes great amounts of energy.Consequently, new routes for its production are being studied, i.e. the oxidative ...
  • Estudio del rol de junturas intermetálicas sobre la actividad electrocatalítica de reacciones de interés en celdas de combustible de baja temperatura que involucran CO adsorbido 
    Luque, Gisela Carina (2018-03-02)
    Oxidation of adsorbed carbon monoxide represents one of the biggest problems to be solved to improve the operation of low temperature fuel cells. Its presence, either as a contaminant in gaseous hydrogen of petrochemical ...
  • Estudios cinéticos de la reacción del electrodo de hidrógeno en junturas heteroátomicas de electrodos bi-componentes 
    Brites Helú, Mariela Alicia (2018-03-07)
    This work studies the synergetic interactions between PGM catalysts (Pt, Rh) and Au over both branches of the Hydrogen Electrode Reaction (HER): the Hydrogen Oxidation Reaction (hor) and the Hydrogen Evolution Reaction ...
  • Estudio de las características fisicoquímicas, reológicas y microencapsulantes de Goma Brea. Evaluación de distintos tratamientos para mejorar sus propiedades 
    Castel, María Virginia (2016-03-18)
    Hydrocolloids of different origins have wide application in different industries. Among them, gum Arabic (GA) leads the world market for gums used in microencapsulation. However, their periodic scarcity and costs, drive ...
  • Valorización catalítica de aceites vegetales mediante reacciones de metátesis 
    Nieres, Pablo Daniel (2017-03-15)
    In the present thesis, different routes for the production of valuable chemicals from oleochemical derivatives are postulated. Cross-metathesis of fatty acid esters (FAME) with alkenes is an elegant way to synthesize ...
  • Alternativas de disolución de celulosa para la obtención de productos regenerados 
    Olmos, Graciela Viviana (2016-12-07)
    Cellulose is the most abundant biopolymer in the earth, however, its use is restricted by limitations derived from its structure. Since its melting point is higher than the degradation temperature, its dissolution is the ...
  • Obtención y caracterización de carbamato de celulosa como alternativa de disolución al proceso de viscosa 
    Lanieri, Diana Beatriz (2017-04-07)
    The chemical functionalization of natural polymers constitutes a viable approach for sustainable development, being also a technologically and economically attractive alternative. At present, the viscose process continues ...
  • Nuevas estrategias analíticas para el análisis de muestras de composición compleja basadas en generación y modelado de datos multidimensionales 
    Alcaraz, Mirta Raquel (2016-12-27)
    In this work, different strategies for multidimensional data generation were evaluated, and potentialities of chemometrics algorithms were explored for the analysis of complex samples. Analytical methods were developed for ...
  • Aplicación de emulsiones multicapa para la encapsulación de aceites con alto contenido de ácidos grasos poliinsaturados 
    Fioramonti, Silvana Alejandra (2015-03-20)
    Polyunsaturated fatty acids (PUFAs) are essential nutrients that have been related with prevention of cardiovascular disease and must be incorporated in the human diet. However, as they are sensitive to lipid oxidation, ...
  • Modelado computacional de películas delgadas de óxidos ferroeléctricos: efectos de un gradiente de deformación y su interacción con nanocintas de grafeno 
    Belletti, Gustavo Daniel (2016-03-23)
    In this thesis, we theoretically study first the microscopic properties of the ferroelectric material PbTiO3 in free and ultrathin films. Using an atomistic core-shell model through classical Molecular Dynamics simulations, ...
  • Líquidos iónicos: caracterización de sus mezclas binarias con solventes moleculares/agua. Análisis de los efectos de solvatación sobre procesos solvatocrómicos y cinéticos. Aplicaciones sintéticas 
    Bravo, María Virginia (2015-12-11)
    In this thesis approach a topic of particular interest in the study of ionic liquids, their physicochemical properties and molecular microscopic, as well as the binary its mixtures with molecular solvents and water. Ionic ...
  • Valorización catalítica de carbohidratos: obtención de combustibles líquidos basados en cetonas y alcoholes 
    Luggren, Pablo Jorge (2015-03-11)
    In this thesis, the gas-phase conversion of 2-hexanol, a model molecule of the primary conversion of sugars, was investigated on Cu-Mı-Mıı mixed oxides (Mı, Mıı: Mg²⁺, Al³⁺, Ce⁴⁺) with different copper content (0.3-61.2 ...
  • Reacciones de Diels-Alder polares utilizando azaheterociclos aromáticos como electrófilos. Un estudio experimental sobre la influencia de la irradiación microondas y de líquidos iónicos como solventes en estas reacciones 
    López Baena, Anna Francesca (2016-03-22)
    In this work we studied a series of polar Diels-Alder reactions using different heterocycles derivatives acting as electrophiles joint to dienes of different nucleophilicity, analyzing the effect of the microwave irradiation ...
  • Síntesis y caracterización de materiales nanoestructurados de Zr, V y Ti 
    Gamba, Nadia Soledad (2014-03-21)
    Zirconium-based materials, both oxides and metals, have been studied for their important technological applications. Specifically the ZrO2, due to its high stability, biocompatibility and corrosion resistance. The tetragonal ...
  • Catalizadores de Cu-Ga2o3/ZrO2 para la hidrogenación selectiva de óxidos de carbono hacia metanol 
    Sanguineti, Pamela Beatriz (2016-03-15)
    It was studied the effect of Ga2O3 (gallia) as promoter, of ZrO2 (zirconia) as support and of the Cu-Ga2O3 and Cu-ZrO2 interactions, in the catalytic performance of supported copper catalysts in the reaction of methanol ...

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