Departament de Ciència dels Materials i Química Física: Recent submissions
Now showing items 1-20 of 52
Mechanical activation of clays as an alternative to thermal activation for ternary blended cement production
[eng] The construction industry significantly contributes to climate change and global warming, especially due to the environmental footprint of Portland cement (PC) production, which is the second most widely used material ...
Economía circular de la Guadua angustifolia Kunth (GaK) como una alternativa de construcción sostenible
[spa] La presente tesis doctoral se centra en el aprovechamiento sostenible de la Guadua angustifolia Kunth (GaK), una especie de bambú predominante en las regiones tropicales y subtropicales, especialmente en América ...
Optimal Selection, Characterization, and Life Cycle Assessment of Sustainable Materials for Thermal Energy Storage in Concentrating Solar Power: A Circular Economy Approach
[eng] The world's energy dilemma, balancing supply and demand, finds a potential solution in energy storage technologies. Energy storage systems store excess energy during low-demand periods for later use. This approach ...
Strategies to synthesize carbon-supported elctrocatalysts with reduced Pt content and increased activity for use in low temperature fuel cells
[eng] Conventional catalysts for polymer electrolyte fuel cells are based on Pt supported on porous carbons, generally carbon blacks. However, Pt is expensive and scarce and is poisoned by CO, which is present in the ...
Prediction of partition coefficients for systems of micelles using DFT
[eng] A compound’s solvent−water partition coefficient (log P) measures the equilibrium ratio of the compound’s concentrations in a two-phase system: as two solvents in contact or a system of micelles in an aqueous ...
Nitrate and Pesticide Removal from Groundwater Using Different Electrochemical Reactors
[eng] Groundwater has been traditionally considered a reliable source of freshwater. However, the low replenishment rates and the increasing contamination due to different anthropogenic activities, such as the use of ...
Evolución de las propiedades de tuberías de PP-R en servicio
[spa] Esta tesis está enfocada en la búsqueda de hitos y nuevos conceptos que permitan la mejora de un producto que actualmente está dominando el mercado en su nicho de negocio español: las tuberías de PP-RCT. La empresa ...
Aleación nanoestructurada de alta entropía FeAlNiCuCo: diseño, síntesis y caracterización
[spa] Durante los últimos años el estudio de las aleaciones de alta entropía, o high entropy alloys (HEA), ha sido un tema en auge. Las HEA presentan de cinco a más elementos en proporción equimolar y una microestructura ...
Desarrollo de micro-morteros de cemento de fosfato de magnesio formulados con subproductos y residuos industriales
[spa] Con el fin de desarrollar materiales de construcción más sostenibles, los cementos de fosfato de magnesio (MPC) se presentan como una prometedora alternativa al cemento Portland. En concreto, destacan en cuanto a ...
Desenvolupament de nous materials basats en alúmina per fabricació additiva mitjançant estereolitografia
[cat] La estereolitografia (SLA) és la primera de les tecnologies de fabricació additiva desenvolupada. Aquesta consisteix en la fotopolimerització d’una resina líquida per capes mitjançant la irradiació selectiva de l’àrea ...
Active nematic turbulence: An experimental study
[eng] One of the most striking phenomena of active fluids, i.e., fluids composed of self-propelled constituents, is the emergence of chaotic spatiotemporal flows. "This regime, reminiscent of inertial turbulence but happening ...
Computational modelling of magnetic and conductive properties of multifunctional molecular materials
Purely organic radical-based materials constitute a promising approach for the miniaturization of devices due to their interesting optical, electronic and magnetic properties, and are good candidates to substitute scarce ...
Nitrate salt-based nanofluids for thermal energy storage
For the development of more compact and efficient thermal systems, nanofluids are presented as a promising option to replace conventional heat transfer fluids. Nanofluids are a suspension of low concentration of nanoparticles ...
Caracterización y modelización de los fenómenos triboquímicos en la interfaz pastilla/rotor relacionados con el uso de sulfuros sintéticos mixtos en materiales de fricción sin cobre
Los sulfuros metálicos tienen un papel fundamental en los materiales de fricción, en los que actúan como aditivos que estabilizan el coeficiente de fricción y reducen el desgaste a alta temperatura. Estas propiedades de ...
Fabricating ultrasensitive metal nano-structures with Langmuir-Blodgett technique to improve plasmonic response of SERS
Nanoparticle self-assembly is a versatile and coherent strategy for the development of functional nanostructured materials, offering low-cost and scalable methods that can be fine-tuned for many different specific application. ...
Estudio del comportamiento del acero inoxidable dúplex y superdúplex después de deformación plástica severa
Los diferentes grados de aceros inoxidables dúplex (DSS) se caracterizan por sus atractivas propiedades de resistencia mecánica y resistencia a la corrosión, debido a su microestructura equilibrada de ferrita (δ) y austenita ...
Alkali-activated binders based on municipal solid waste incineration bottom ash
Municipal solid waste incineration (MSWI) is the most widely used solution in those countries where landfilling areas are limited. Incineration allows reducing the total volume of waste (up to 90%) and generating energy ...
Pretreatment to the leaching of copper sulphides minerals in oxidizing media
La producción chilena de cobre procede de la hidrometalurgia y la concentración; el concentrado de cobre es tratado tradicionalmente mediante pirometalurgia. De acuerdo a Cochilco, el cobre producido en el año 2019, vía ...
Coupling of binding and conformational equilibria in weak polyelectrolytes. Dynamics and charge regulation of biopolymers in crowded media.
I have carried out this thesis in the Biophysical Chemistry of Macromolecules and Colloids research group of the University of Barcelona. In the recent years, the research group have made significant contributions to the ...
Computational Modelling of TiO2 and Mg-silicate nanoclusters and nanoparticles - Crystallinity and Astrophysical Implications
The research presented in this thesis contributes to the understanding of both titania and silicate nanosystems by providing new information on energetic stability and properties of nanometer sized particles using computational ...
