A5047643284- Aerogels and thermal insulation
- CO2 Sequestration and Geologic Interactions
- Surface Modification and Superhydrophobicity
- Mesoporous Materials and Catalysis
- Glass properties and applications
- Phase-change materials and chalcogenides
- Silicone and Siloxane Chemistry
- Quantum Dots Synthesis And Properties
- Catalysis and Oxidation Reactions
- Bone Tissue Engineering Materials
- Concrete and Cement Materials Research
- Advanced ceramic materials synthesis
- Methane Hydrates and Related Phenomena
- Building materials and conservation
- Luminescence Properties of Advanced Materials
- Chalcogenide Semiconductor Thin Films
- Phase Equilibria and Thermodynamics
- X-ray Diffraction in Crystallography
- Nuclear materials and radiation effects
- Carbon Dioxide Capture Technologies
- Photonic Crystals and Applications
- Inorganic Fluorides and Related Compounds
- Material Dynamics and Properties
- Pickering emulsions and particle stabilization
- Corrosion Behavior and Inhibition
Universidad de Sevilla
2015-2024
Instituto de Ciencia de Materiales de Sevilla
2011-2023
Centro de Investigaciones Científicas Isla de la Cartuja
2010-2020
Consejo Superior de Investigaciones Científicas
2008-2010
Universidad de Cádiz
1999-2008
American Ceramic Society
1999
Université de Montpellier
1995
In this study, Cu-doped ZnO aerogel nanoparticles with a 4% copper concentration (Cu4ZO) were synthesized using sol–gel method, followed by supercritical drying and heat treatment. The subsequent fabrication of Cu4ZO ceramics through Spark Plasma Sintering (SPS) was characterized X-ray diffraction (XRD), field-emission gun scanning electron microscopy (FE-SEM) equipped EDS, impedance spectroscopy (IS) across frequency range 100 Hz to 1 MHz temperatures from 270 K 370 K. SPS–Cu4ZO sample...
The sol–gel process represents a room‐temperature method of producing wide range ceramic materials through the formation glassy network by polymerization suitable monomers. use technique to produce, for example, sonogels, organic‐inorganic composites, NLO glasses, and electrooptical such as gel‐glass dispersed liquid crystald (GDLCs) is reviewed. An example GDLC shown on this issue's front cover, 4‐pentyl‐4‐biphenylcarbonitrile in LC state being thin film silica.
Chitosan (CS) is a natural biopolymer that shows promise as biomaterial for bone-tissue regeneration. However, because of their limited ability to induce cell differentiation and high degradation rate, among other drawbacks associated with its use, the creation CS-based biomaterials remains problem in bone tissue engineering research. Here we aimed reduce these disadvantages while retaining benefits potential CS by combining it silica provide sufficient additional structural support In this...
Nowadays the sol–gel process is used by an increasing number of researchers for preparation various products, including bulk materials, films, membranes or fibers. The application ultrasound (sonocatalysis) to precursors gives rise materials with new properties, known as sonogels. absence additional solvent and, mainly, effects ultrasonic cavitation create a unique environment reactions leading particular features in resulting gels: high density, fine texture, homogeneous structure etc....
The aim of the present work was to characterize products obtained from treatment phosphogypsum residue by means two recovery routes, and also evaluate concentrations heavy metals radionuclides in materials their leachates. In this way, it is possible determine how most hazardous components behave during procedures until stabilization through CO
Carbonation reaction from the dissolution of minerals, mainly silicates, is an option for long-term storage CO2, offering capacity exceeding that other strategies, and certain advantages such as formation insoluble inert products. This study presents results carbonation reactions utilizing silica aerogel−wollastonite composites. The procedure synthesis precursor powders with wollastonite stoicheiometry, well compositional textural features resulting composites, was examined first. kinetic...
Several mixtures obtained by ultrasonic agitation of colloidal silica with a sol solution containing tetraethoxysilane (TEOS) were used to form crack-free monoliths. The dry gels that submitted mercury porosimetry showed differences in behavior according the proportion colloid gel. For low proportions, isostatic pressure exclusively induced an irreversible compaction material, but intrusion occurred high colloid. This permitted evaluation textural properties intruded gels, whereas...
In this work, the crystal evolution of α-Al2O3 composites reinforced with LBA platelets were monitored by XRD Rietveld. addition, mechanical properties totally densified specimens researched Vickers and Knoop indentations. These composite materials prepared a sol-gel process from alumina seeded boehmite sol lanthanum nitrate. X-ray diffraction data have been studied Rietveld refinements line profile analyses, paying attention to formation, vol%, crystallite size different phases. It has...