A5037589329- Advanced Thermoelectric Materials and Devices
- GaN-based semiconductor devices and materials
- Catalytic Processes in Materials Science
- Ga2O3 and related materials
- Catalysis and Oxidation Reactions
- Magnetic properties of thin films
- ZnO doping and properties
- Transition Metal Oxide Nanomaterials
- Semiconductor materials and interfaces
- Heusler alloys: electronic and magnetic properties
- Chalcogenide Semiconductor Thin Films
- CO2 Sequestration and Geologic Interactions
- Magnetic and transport properties of perovskites and related materials
- Catalysis and Hydrodesulfurization Studies
- Metal and Thin Film Mechanics
- Catalysis for Biomass Conversion
- Magnetic Properties and Synthesis of Ferrites
- Semiconductor materials and devices
- Zeolite Catalysis and Synthesis
- Acoustic Wave Resonator Technologies
- Semiconductor Quantum Structures and Devices
- Thermal properties of materials
- Silicon Nanostructures and Photoluminescence
- Geothermal Energy Systems and Applications
- nanoparticles nucleation surface interactions
University of Stavanger
2018-2024
University of Cyprus
2019
University of Oslo
2019
Centre for Research and Technology Hellas
2009-2018
Aristotle University of Thessaloniki
2004-2008
Lehigh University
2005
Cardiff University
2002
The main objective of the present work was evaluation commercial ZSM-5 catalysts (diluted with a silica–alumina matrix) in situ upgrading lignocellulosic biomass pyrolysis vapours and validation their bench-scale reactor performance pilot scale circulating fluidized bed (CFB) reactor. based were tested both fresh at equilibrium state, further promoted cobalt (Co, 5% wt%) using conventional wet impregnation techniques. All had significant effect on product yields bio-oil composition,...
Details of synthesis and structural characterization highly crystalline iron oxide nanoparticles are presented together with results on the magnetic investigation as a function temperature applied field. Monodisperse Fe were prepared by thermal decomposition pentacarbonyl in presence oleic acid. These readily oxidized exposure to air. The resulting nanocrystals have been identified inverse spinels, being $\ensuremath{\gamma}\text{\ensuremath{-}}{\mathrm{Fe}}_{2}{\mathrm{O}}_{3}$ dominant...
Co-based nanostructures ranging from core/shell to hollow nanoparticles were prepared by varying the reaction time and chemical environment during thermal decomposition of Co${}_{2}$(CO)${}_{8}$. Both structural characterization kinetic model simulation illustrate that diffusivities cobalt oxygen determine growth ratio final morphology nanoparticles. Exchange coupling between Co Co-oxide in induced a shift field-cooled hysteresis loops is proportional shell thickness, as verified numerical...
This study reports a new meta-stable structure in epitaxial nickel-aluminum (Ni-Al) films (Al content up to 24.4 at.%) grown on MgO(001) substrates by magnetron sputtering. Structure probes XRD, HRTEM and nano-indentation combined with atomistic simulations consistently demonstrate that thin film samples coexisting {\gamma} {\gamma}' phases, domains of the two phases are homogeneously intermixed at atomic-scale, forming coherent matched lattice one overall parameter. It expands as aluminum...
The authors study the morphological evolution of magnetron-sputtered thin silver (Ag) films that are deposited on weakly interacting silicon dioxide (SiO2) substrates in an oxygen-containing (O2) gas atmosphere. In situ and real-time monitoring electrically conductive layers, along with ex microstructural analyses, shows presence O2, throughout all film-formation stages, leads to a more pronounced two-dimensional (2D) morphology, smoother film surfaces, larger continuous-layer electrical...