A5082214240- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Phase Change Materials Research
- Surface Modification and Superhydrophobicity
- Mesoporous Materials and Catalysis
- Solar Thermal and Photovoltaic Systems
- High-Temperature Coating Behaviors
- Adsorption and Cooling Systems
- Advanced Photocatalysis Techniques
- Advanced ceramic materials synthesis
- Advancements in Solid Oxide Fuel Cells
- Electrocatalysts for Energy Conversion
- TiO2 Photocatalysis and Solar Cells
- Adhesion, Friction, and Surface Interactions
- Fluid Dynamics and Heat Transfer
- Zeolite Catalysis and Synthesis
- Nuclear materials and radiation effects
- Microbial Fuel Cells and Bioremediation
- Catalysis and Hydrodesulfurization Studies
- Luminescence Properties of Advanced Materials
- Microwave Dielectric Ceramics Synthesis
- Electrowetting and Microfluidic Technologies
- Gas Sensing Nanomaterials and Sensors
- Corrosion Behavior and Inhibition
- Electronic and Structural Properties of Oxides
National and Kapodistrian University of Athens
2019-2024
Agricultural University of Athens
2023-2024
National Centre of Scientific Research "Demokritos"
2024
Materials Technology (United Kingdom)
2024
Materials Industrial Research and Technology Development Centre (Greece)
2023
Technological Educational Institute of Athens
2018
Technological Educational Institute of Thessaly
2018
Technological Educational Institute of Central Greece
2009-2016
Ceramics and Refractories Technological Development Company (Greece)
2009-2013
University of Ioannina
1999-2009
Titanium dioxide (TiO2) as a photocatalyst has been ubiquitously studied for environmental applications. Though, readily available, nontoxic, and environmentally friendly; lower efficiency, less energy harvesting within the UV–Vis range with ease of photogenerated charge recombination is still concern its full-scale deployment remediation In light this, this mini review considers heteroatom doping, dye/metal sensitization, metal oxide/ semiconductor coupling, heterojunction constructions,...
Ceria has been widely studied either as catalyst itself or support of various active phases in many catalytic reactions, due to its unique redox and surface properties conjunction lower cost, compared noble metal-based systems. The rational design materials, through appropriate tailoring the particles’ shape size, order acquire highly efficient nanocatalysts, is major significance. Iron considered be one cheapest transition metals while interaction with ceria their shape-dependent activity...
This work reports the operation of a Latent Heat Thermal Energy Storage system (LHTES) utilizing staggered heat exchanger (HE) and using various organic Phase Change Materials (PCMs). In LHTES test rig set measurements regarding energy storage release were performed in working temperature range each Material. Nominal melting temperatures PCMs used 40–53 °C. Computational Fluid Dynamics (CFD) simulation was applied to follow rig. The consisted compact insulated tank, filled with PCM, supply...
Nanofiltration (NF) is gaining a role of increasing importance in Zero Liquid Discharge (ZLD)/Minimal (MLD) systems, enhancing the efficiency downstream technologies to recover valuable minerals from seawater and brines. However, often purity recovered does not meet market specifications, making ZLD/MLD currently economically unfeasible. To such end, this study, novel positively charged NF membrane was developed enhance magnesium calcium selectivity. The comprised: (i) an ultrafiltration...
Around 65% of the mitigation needed for targeted net-zero carbon aviation emissions in 2050 is expected to come from Sustainable Aviation Fuels (SAFs). In this study, an alternative gasification-driven Biomass-to-Liquid (BtL) concept production SAFs introduced and evaluated. particular, a fuel synthesis scheme based on double-stage fermentation produced syngas (syngas → acetic acid TAGs) assessed instead conventional Fischer-Tropsch (FT) or Alcohol-to-Jet (AtJ) synthesis. The objective...
Purpose This study aims to investigate the impact of layer thickness, extrusion temperature, speed and build plate temperature on tensile strength, crystallinity achieved during fabrication (herein, in-process crystallinity) mesostructure Poly(lactic acid) specimens. Both strength were optimized verified as function processing parameters, their relationship was thoroughly examined. Design/methodology/approach The four key technological parameters systematically varied factors three levels,...
For the reduction of electricity cost for cooling buildings in hot climate zones, thermal energy storage at low temperature using phase change materials is a potential solution. The medium can be cooled during periods and then absorb load any time day. In this study, an experimental cold system organic (A9 A14) with melting 9 or 14 °C investigated. designed real application conditions coupled heat pump which cools down material through circulation water pipes fan coil units dissipate their...
In this work, a thermal energy storage tank using Phase Change Materials (PCM) is experimentally investigated. It part of technology based on solar collectors and efficient heat pumps for heating, cooling Domestic Hot Water (DHW) production. comprises rectangular filled with PCM staggered finned exchanger (HE). The designed DHW production according to the EU Commission Regulation No 814/2013 requirements. Stored density transfer rate during melting solidification stages are used evaluate...
Abatement of contaminants emerging concerns (CECs) in water sources has been widely studied employing TiO2 based heterogeneous photocatalysis. However, low quantum energy yield among other limitations titania led to its modification with semiconductor materials for improved photocatalytic activity. In this work, a 0.05 wt.% CuWO4 over was prepared as powder composite. Each component part synthesized via the sol-gel method TiO2, and by co-precipitation assisted hydrothermal from precursor...
Contaminants of emerging concerns (CECs) spread across a wide range organic product compounds. As biorecalcitrants, their removal from conventional wastewater treatment systems remains herculean task. To address this issue, heterogenous solar driven advanced oxidation process based-TiO2 and other semiconductor materials has been extensively studied for abatement sources. In study, we have synthesized by hydrothermal assisted co-precipitation Ag doped ZnSnO3. Structural morphological...
The present work discusses the effect of CeO2 synthesis method (thermal decomposition (TD), precipitation (PT), hydrothermal (HT), and sol-gel (SG)) on carbon pathways dry reforming methane with dioxide (DRM) applied at 750 °C over 5 wt% Ni/CeO2. In particular, specific transient isotopic experiments (use 13CO, 13CO2, 18O2) were designed conducted in an attempt providing insights about support’s preparation concentration (mg gcat−1), reactivity towards oxygen, evolution rates (μmol gcat−1...
In this work, a full scale prototype latent heat thermal energy storage unit has been designed, constructed, and experimentally analysed for its performance considering heating application conditions two sources, solar geothermal energy. It comprises rectangular tank filled with phase change material finned tube staggered exchanger. Water is used as transfer fluid. To study performance, selected fluid inlet temperatures flow rates were applied commercial organic materials tested, A44 A46....
ZnWO4MnPc was synthesized via a hydrothermal autoclave method with 1 wt.% manganese (iii) phthalocyanine content. The material characterized for its structural and morphological features X-ray diffraction (XRD) spectroscopy, Fourier transform infrared (FTIR) transmission emission microscopy (TEM), scanning electron microscopy-Energy dispersive spectroscopy (SEM-EDX), N2 adsorption–desorption at 77K, photoelectron (XPS), UV-visible/diffuse reflectance spectroscopy(UV-vis/DRS). photocatalytic...