A5085538357- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Electronic and Structural Properties of Oxides
- Copper-based nanomaterials and applications
- Chalcogenide Semiconductor Thin Films
- Catalytic Processes in Materials Science
- Metallic Glasses and Amorphous Alloys
- Quantum Dots Synthesis And Properties
- Transition Metal Oxide Nanomaterials
- Metal and Thin Film Mechanics
- Electrodeposition and Electroless Coatings
- Electrospun Nanofibers in Biomedical Applications
- Advanced Sensor and Energy Harvesting Materials
- Polymer Surface Interaction Studies
- Magnetic and transport properties of perovskites and related materials
- Nanocomposite Films for Food Packaging
- Conducting polymers and applications
- Surface Modification and Superhydrophobicity
- Surface Roughness and Optical Measurements
- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Diamond and Carbon-based Materials Research
- Synthesis and properties of polymers
Alexandru Ioan Cuza University
2015-2025
Zero to Three
2013
The present study explores an environmentally friendly green approach to obtain cerium oxide nanoparticles via a biomediated route using Mellisa officinalis and Hypericum perforatum plant extracts as reducing agents. as-prepared were studied for their structural morphological characteristics XRD diffractometry, scanning electron microscopy, Raman, fluorescence electronic absorption spectra, X-ray photoelectron spectroscopy (XPS). pattern has shown the centered fluorite crystal structure of...
Cerium oxide nanoparticles were prepared by a precipitation method using Ce(IV) sulphate as precursor dispersed in glycerol with varying synthesis parameters such temperature or precipitating agent. The structural and morphological characteristics of the obtained investigated X-ray diffraction, transmission electron microscopy, diffuse reflectance spectroscopy. crystallite size varied between 13 17 nm. presence Ce3+ Ce4+ was proved XPS data CeO2 samples conservation fluorite structure...
Based on a multi-analytical approach involving mobile techniques and lab-based devices (XPS, portable micro-Raman spectroscopies, ATR-FTIR spectroscopy, combined with SEM/EDS optical microscopy), this study presents the first in-depth investigation of two cultural heritage artworks painted by famous Romanian artist Ștefan Luchian. The research highlights artist’s use wide range colors, his palette including classic pigments such as ochers, lead white, barium zinc viridian, well contemporary...
We report a water soluble MgO/Ch/ZnPc(COOH) 4 self-assembled room-temperature phosphorescent material with unique performance, such as long lifetime of 5.01 μs, large Stokes shift 105 nm and phosphorescence quantum yield 10.63%.
Cerium oxide nanoparticles were obtained using aqueous extracts of Chelidonium majus and Viscum album. X-ray diffractometry analysis confirmed the crystalline structure synthesized cerium calcined at 600 °C. Scanning electron microscopy, UV-Vis reflectance Raman spectroscopy, XPS, fluorescence studies utilized to interpret morphological optical properties these nanoparticles. The STEM images revealed spherical shape that they predominantly uniform in size. band gap our was determined be 3.3...
TiO2 and TiO2/Nb amorphous thin films were grown on glass substrates by a sol-gel technique (spin coating). Films' surface composition, structure, morphology derived from x-ray photoelectron spectroscopy, diffraction, atomic force microscopy data. The investigated showed smooth (roughness values below 5 nm). A separate wettability investigation that increasing the Nb amount in pristine titania results decrease of contact angle (CA) 40° to nearly 0°, thus, indicating super-hydrophilic...