A5046881160- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- TiO2 Photocatalysis and Solar Cells
- Advancements in Battery Materials
- 2D Materials and Applications
- Catalytic Processes in Materials Science
- Ga2O3 and related materials
- Supercapacitor Materials and Fabrication
- Graphene research and applications
- Advanced Battery Materials and Technologies
- Machine Learning in Materials Science
- Quantum Dots Synthesis And Properties
- Aerosol Filtration and Electrostatic Precipitation
- Chalcogenide Semiconductor Thin Films
- Carbon dioxide utilization in catalysis
- CO2 Reduction Techniques and Catalysts
- Pigment Synthesis and Properties
- Surface Modification and Superhydrophobicity
- Covalent Organic Framework Applications
- Graphene and Nanomaterials Applications
- Membrane Separation and Gas Transport
- Metal-Organic Frameworks: Synthesis and Applications
- Electron and X-Ray Spectroscopy Techniques
- Pickering emulsions and particle stabilization
University of Illinois Chicago
2024-2025
National Centre of Scientific Research "Demokritos"
2015-2024
National Technical University of Athens
2015-2020
Abstract Li‐CO 2 batteries with a high theoretical energy density (1876 Wh kg −1 ) have unique benefits for reversible carbon fixation storage systems. However, due to lack of stable and highly active catalysts, the long‐term operation is limited low current densities (mainly <0.2 mA cm −2 that are far from practical conditions. In this work, it discovered that, an ionic liquid‐based electrolyte, transition metal trichalcogenide alloy catalysts Sb 0.67 Bi 1.33 X 3 (X = S, Te) enable...
The g-C3N4/TiO2 nanopowders prepared by the annealing of melamine and TiO2 P25 at 550 °C were investigated under dark upon UV or visible-light photoactivation using X- Q-band electron paramagnetic resonance (EPR) spectroscopy. EPR spectra powders monitored room temperature 100 K showed impact initial loading ratio melamine/TiO2 on character centers observed. For photocatalysts synthesized a lower titania content, signals characteristic for nanocomposites already found before exposure....
Li-CO$_2$ batteries show promise as energy storage solutions, offering high theoretical density and CO$_2$ fixation. Their performance relies on the formation decomposition of Li$_2$CO$_3$/C during discharge charge cycles, respectively. We used a multiscale modeling framework that integrates Density Functional Theory (DFT), Ab-Initio Molecular Dynamics (AIMD), classical (MD), Finite Element Analysis (FEA) to investigate atomic cell-level properties. The battery consists lithium metal anode,...
The degradation of the hemiwicking property superhydrophilic high-energy surfaces due to contaminant adsorption from ambient atmosphere is well-documented. This compromises performance such surfaces, thus affecting their efficacy in real-world applications where critical. In this work, role surface micro- and nanostructure morphology laser-textured metallic on superhydrophilicity studied. We explore intrinsic contact angle variations via organics surroundings, which brings about associated...
g-C3N4, with specific surface area up to 513 m2/g, was prepared via three successive thermal treatments at 550 °C in air gradual precursor mass decrease. The obtained bulk and exfoliated (1ex, 2ex 3ex) g-C3N4 were characterized tested as photocatalysts for H2 production, CO2 reduction NOx oxidation. samples demonstrated graphene-like morphology detached (2ex) sponge-like framework (3ex) of layers. increased drastically from 20 m2/g (bulk) (3ex). band gap (Eg) gradually 2.70 3.04 eV....
In the last few years, increasing interest from researchers and companies has been shown in development of photocatalytic coatings for air purification self-cleaning applications. order to maintain photocatalyst’s concentration as low possible, highly active materials and/or combinations them are required. this work, novel formulations containing g-C3N4/TiO2 composites were prepared deposited form on a-block substrates. The obtained surfaces tested NOx acetaldehyde removal model air. It was...
New heterojunction materials (HJs) were synthesized in-situ by molecularly bonding the monomers of a triazine-based covalent organic framework (bulk COF) on template exfoliated carbon nitride (g-C3N4). The photocatalysts reduced dioxide to monoxide in aqueous dispersions under UV irradiation. g-C3N4 showed production 6.50 μmol CO g−1 h−1 and bulk COF 2.77 h−1. yield was evaluated sustainability photoreduction cycles their CO2 uptake capacity isosteric heat adsorption estimated. All obtained...
Pure g-C3N4 sample was prepared by thermal treatment of melamine at 520 °C, and iron-modified samples (0.1, 0.3 1.1 wt.%) were mixing with iron nitrate calcination °C. The photocatalytic activity the materials investigated based on reduction CO2, which conducted in a homemade batch reactor that had been irradiated from top using 365 nm Hg lamp. photocatalyst lowest amount ions exhibited an extraordinary methane hydrogen evolution comparison pure higher amounts. A not beneficial for CO2...
PtSe 2 , an emerging two-dimensional (2D) transition metal dichalcogenide (TMD), has been considered as excellent electrochemical material however its photocatalytic properties are still unexplored. In the present work, antibacterial activity of few-layer coatings on glass substrate against Escherichia coli in dark and light irradiation conditions is reported. 2D layers were synthesized by selenization pre-deposited Pt films using thermally assisted conversion (TAC) method. with three...
The CO2 conversion to valuable materials is a challenging way manage pollution problems. In the present work, was used as feedstock synthesize solid carbon nanostructures by employing simple magnesiothermic reduction reaction under constant gas flow in tube furnace. It shown that at 675 oC led simultaneous formation of different nanocarbon morphologies including graphene, tubular and spherical nanostructures. synthesized material characterized using XRD analysis, Raman spectroscopy, SEM TEM...