Departament d'Enginyeria Química: Envíos recientes
Mostrando ítems 21-40 de 234
Mechanochemical preparation of TiO2-based photocatalysts for hydrogen production
(English) Metal clusters and single atoms have been considered as effective cocatalysts for the enhancement of photocatalytic hydrogen production dueto their singular geometric structures, electronic properties and unique ...
Fire risk analysis framework at the wildland-urban interface
(English) Wildfires that reach the border between the wildland and urban areas, defined as the Wildland-Urban Interface (WUI), have rapidly expanded in frequency and severity over the past few decades, and the number of ...
Simulación y desarrollo de reactores catalíticos de membrana para la tecnología del hidrógeno
(English) This thesis focuses on the study of the catalytic production of hydrogen from methanol and water. Catalytic production is carried out in a catalytic membrane reactor which manages to produce and purify hydrogen. ...
Del mur romànic al museu. La tècnica de la pintura mural romànica i del seu traspàs amb morters de caseïna
(English) An important collection of Romanesque wall paintings, detached from their original places at the beginning of the 20th century, is now preserved and exhibited in the Museu Nacional d'Art de Catalunya. To define ...
Polymer-zirconia based ceramic composites produced by 3D-printing
(English) Zirconia ceramic is widely used in numerous fields, such as electronics, machinery, and biomedical applications, due to its excellent properties as chemical resistance, thermal stability, electrical resistance, ...
In situ studies of catalytic processes by Near Ambient X-ray Photoelectron Spectroscopy
(English) Labels misplacement in the bottles are currently causing problems in wine cellar's labelling lines. According to data provided by Codorníu and Torres cellars, 1 % of the bottles present this issue. Once the wine ...
ECO-DWOR: ECOlogical finishing agents for Durable Water & Oil-Repellent textiles with advanced functionalities
Fluorinated chemicals, commonly known as per- and polyfluoroalkyt substances (PFASs), are widely used to obtain water-, oil- and stain-repellent texUles. The constant development and optimization of fluorochemicals for ...
Application of ultrasound in twin-screw extrusion and microinjection molding: improvements of properties of processed materials and nanocomposites : polymers and biopolymers
The plastics industry is in constant evolution looking to improve the properties of new materials and performance in different applications. Currently, the environmental impact associated with the use of plastics is one ...
Recovery of polyphenols by extraction and purification technologies from orange and spinach processing residues
The residues resulting from orange and spinach processing, composed mainly by peels and seeds; and leaves, respectively, contain relevant amounts of polyphenols, so they can be used as raw material for recovery natural ...
Biomedical applications of hybrid polymer-based materials
Polymers have been widely used in biomedical applications for drug delivery purposes in the last decades. However, ordinary long term drug delivery systems are sometimes associated with undesired side effects if the ...
Development of scaffolds by thermally-induced phase separation from biodegradable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and poly(butylene succinate)
TIPS process followed by freeze-dtying was used to prepare blodegradable and biocompatible matrices from poly(3- hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) containing 5 and 12 wt% of 3-hydroxyvalerate (HV) and poly(butylene ...
Titanium dioxide and nanoshaped ceria for solar hydrogen production
This work facuses on the study of these processes on Ti02 and Ce02, respectively. Although the development of photocatalytic research with the use of semiconductor photocatalysts does not last longer than about 40 years, ...
Characteristics of bioactive molecules with antioxidant and biological activities of some medicinal and edible plants
The present work has focused on the study of two edible plants, with attributable medicinal values, named Anthyllis vulneraria L. (A.vulneraria) and Azadirachta indica L. (A.indica) collected in Tunisia and India, ...
Nanomaterials for controlling bacterial pathogens and resistance occurrence
lnfectious diseases are the leading cause of death worldwide while the constantly raising antimicrobial resistance (AMR) is a major concern for the public health. During the infection establishment bacteria! pathogens ...
Estudio de la evaporación de vertidos de disoluciones acuosas de amoníaco
Evaporation from liquid spills is a phenomenon of great importance. This phenomenon has been studied by a number of researchers. However, most of them have focused on the evaporation of pure liquid spills or hydrocarbon ...
Producción de hidrógeno a partir de amoniaco en reactores de paredes catalíticas
Due to the problems associated with the generation and storage of hydrogen in portable applications, the use of ammonia fer the on-site production of hydrogen through its catalytic decomposition has been proposed. This ...
Conducting polymers and hybrid materials for technological applications
Depletion of natural resources and non-renewable energy sources has recently accelerated due to the development of globalized economy and industrialization. During the last years, the scientific community has devoted much ...
Modified polymers as electroactive biomaterials
Development of polymeric biomaterials with tailored properties is essential for expanding biotechnologies and, therefore, proposing novel solutions for diagnostic and treatments in modern medicine. In order to contribute ...
Antioxidant properties and applications of pecan (Carya illinoinensis)
At the present time, the environmental challenges are the second concern on a global level, and the first one in some countries. This is one of the main reasons behind the recent boost of new methods of production within ...
Optimization strategies for efficient dosage of H2O2 in Fenton and photo-Fenton processes
This Thesis work addresses the challenge of designing hydrogen peroxide (H2O2) dosage Strategies for improving Fenton and photo-Fenton applications. The determination of the H2O2 dosage scheme that minimizes hydrogen ...
