A5036587968- Hydrogen Storage and Materials
- Mesoporous Materials and Catalysis
- Membrane Separation and Gas Transport
- Phase Equilibria and Thermodynamics
- Supercapacitor Materials and Fabrication
- Metal-Organic Frameworks: Synthesis and Applications
- Carbon Dioxide Capture Technologies
- Zeolite Catalysis and Synthesis
- Catalytic Processes in Materials Science
- Graphene research and applications
- Covalent Organic Framework Applications
- Hydrocarbon exploration and reservoir analysis
- Catalysis and Oxidation Reactions
- X-ray Diffraction in Crystallography
- Ammonia Synthesis and Nitrogen Reduction
- Bone Tissue Engineering Materials
- Enhanced Oil Recovery Techniques
- Carbon Nanotubes in Composites
- Graphene and Nanomaterials Applications
- Clay minerals and soil interactions
- Membrane Separation Technologies
- Carbon dioxide utilization in catalysis
- Aerogels and thermal insulation
- Hybrid Renewable Energy Systems
- Crystallization and Solubility Studies
National Centre of Scientific Research "Demokritos"
2015-2024
Universidad de Málaga
2005
Université de Montpellier
2004-2005
Aristotle University of Thessaloniki
2004
Colloidal graphene: Treatment of graphite powder with a series certain aromatic solvents under sonication leads to the homologous set colloidal dispersions containing solubilized graphenes (see image). Detailed facts importance specialist readers are published as ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note: The publisher is responsible for content functionality any supporting information...
Abstract Stoichoimetric graphene fluoride monolayers are obtained in a single step by the liquid‐phase exfoliation of graphite with sulfolane. Comparative quantum‐mechanical calculations reveal that is most thermodynamically stable five studied hypothetical derivatives; graphane, fluoride, bromide, chloride, and iodide. The transformed into via iodide, spontaneously decomposing intermediate. calculated bandgaps halides vary from zero for bromide to 3.1 eV fluoride. It possible design...
Graphene sheets derived from dispersion of graphite in pyridine were functionalised by the 1,3 dipolar cycloaddition azomethine ylide. The organically modified graphene are easily dispersible polar organic solvents and water, they extensively characterised using several spectroscopic microscopy techniques.
Considerable progress has been made recently in the use of nanoporous materials for hydrogen storage. In this article, current status field and future challenges are discussed, ranging from important open fundamental questions, such as density volume adsorbed phase its relationship to overall storage capacity, development new functional complete system design. With regard fundamentals, neutron scattering study H2, suitable adsorption isotherm equations, accurate computational modelling...
In this work, two types of mesoporous carbon particles with different morphology, size, and pore structure have been functionalized a self-immolative polymer sensitive to changes in pH tested as drug nanocarriers. It is shown that their textural properties allow significantly higher loading capacity compared typical silica nanoparticles. vial release experiments model Ru dye at 7.4 5 confirm the pH-responsiveness hybrid systems, showing only small amounts cargo are released physiological pH,...
The development and in-depth characterization of multifunctional materials with versatile use in energy environmental applications has been a topic on-going investigations. In this work, nanoporous polymer-/polyaniline-derived activated carbon (PDAC), large surface area (~2200 m2/g) pore volume (~1 cm3/g), was thoroughly studied towards its applicability for H2 storage supercapacitor storage. PDAC demonstrated superior adsorption performance under cryogenic conditions, reaching high fully...
Abstract Physisorption of hydrogen in nanoporous materials offers an efficient and competitive alternative for storage. At low temperatures (e.g. 77 K) moderate pressures (below 100 bar) molecular H 2 adsorbs reversibly, with very fast kinetics, at high density on the inner surfaces such as zeolites, activated carbons metal–organic frameworks (MOFs). This review, by experts Task 40 ‘Energy Storage Conversion based Hydrogen’ Hydrogen Technology Collaboration Programme International Energy...
The intercalation of sugar in smectite clays and the resulting clay−carbon composites after thermal treatment Ar are described. Sugar activation by H2SO4 affords novel which layer structure clay is preserved. Combined XRD TEM measurements strongly suggest that carbonization at 600 °C leads to graphenes distributed over surfaces, forming a nanometric carbonaceous film. Thermal analysis results show enhanced stability with mineral preserving its layered even 900 °C. Acid demineralization...
Abstract This study describes an effective way for the preparation of well‐dispersed, high‐loaded PVA/bentonite nanocomposites with improved properties, based on nanoscale interactions. To this end, a series Poly(vinyl alcohol)—bentonite clay have been prepared via solvent casting technique and their properties were thoroughly investigated by atomic force microscopy, transmission electron X‐Ray diffraction, oxygen water permeability, sorption along mechanical thermal studies. Microscopic XRD...
Encapsulation of poorly water-soluble drugs into mesoporous materials (e.g. silica) has evolved as a favorable strategy to improve drug solubility and bioavailability. Several techniques spray drying, solvent evaporation, microwave irradiation) have been utilized for the encapsulation active pharmaceutical ingredients (APIs) inorganic porous matrices. In present work, novel chalcone (KAZ3) with anticancer properties was successfully synthesized by Claisen-Schmidt condensation. KAZ3 loaded...
Abstract In this work, the effect of two different types bioactive coatings on properties 3D printed poly(lactic acid)/montmorillonite (PLA/MMT) nanocomposite scaffolds was examined. To improve their suitability for bone tissue engineering applications, PLA were coated with (i) ordered mesoporous Strontium bioglass (SrBG) and (ii) SrBG nanohydroxyapatite (nHA) using a simple dip coating procedure. The morphology, chemical structure, wettability nanomechanical hydrophilicity increased after...
The chemistry of metal–organic frameworks (MOFs) continues to expand rapidly, providing materials with diverse structures and properties. reticular approach, where well-defined structural building blocks are combined together form crystalline open framework solids, has greatly accelerated the discovery new important materials. However, its full potential toward rational design MOFs relies on availability highly connected because these reduce number possible structures. Toward this,...
Hydrogen storage by cryoadsorption on porous materials has the advantages of low material cost, safety, fast kinetics, and high cyclic stability. The further development this technology requires reliable data H
A lightweight, oxygen-rich carbon foam was prepared and doped with Pd/Hg alloy nanoparticles. The composite revealed high H2 sorption capacity (5 wt%) at room temperature moderate pressure (2 MPa). results were explained on the basis of spillover mechanism using Density Functional Theory.
The number of patients with chronic kidney disease increases while the available donor organs stays at approximately same level. Unavoidable accumulation uremic toxins and cytokines for these comes as result malfunctioning kidneys their high levels in blood morbidity mortality. Unfortunately, existing methods, like hemodialysis hemofiltration, provide only partial removal and/or from patients' blood. Consequently, there is an increasing need development extracorporeal treatments which will...
Abstract Graphene derivatives are promising candidates as electrode materials in supercapacitor cells, therefore, functionalization strategies pursued to improve their performance. A scalable approach is reported for preparing a covalently and homogenously functionalized graphene with iron tetraaminophthalocyanine (FePc‐NH 2 ) high degree of functionalization. This achieved by exploiting fluorographene's reactivity the diethyl bromomalonate, producing graphene‐dicarboxylic acid after...