A5042404798- Electronic and Structural Properties of Oxides
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Advanced Thermoelectric Materials and Devices
- Polymer Nanocomposites and Properties
- ZnO doping and properties
- Catalytic Processes in Materials Science
- Semiconductor materials and devices
- Water Quality Monitoring and Analysis
- Membrane Separation Technologies
- Polymer composites and self-healing
- Polymer crystallization and properties
- Perovskite Materials and Applications
- Copper-based nanomaterials and applications
- Biosensors and Analytical Detection
- Machine Learning in Materials Science
- Surface Modification and Superhydrophobicity
- Dyeing and Modifying Textile Fibers
- Advanced Cellulose Research Studies
- Polymer Nanocomposite Synthesis and Irradiation
- Metallurgical and Alloy Processes
- Advanced Polymer Synthesis and Characterization
- biodegradable polymer synthesis and properties
- Iron oxide chemistry and applications
- Molecular Junctions and Nanostructures
Luxembourg Institute of Science and Technology
2015-2025
Groupe de Recherches sur l'Energétique des Milieux Ionisés
2017-2022
University of Luxembourg
2021
Centre National de la Recherche Scientifique
2011-2018
Université d'Orléans
2018
Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé
2015-2017
Institut de Chimie
2015-2017
Département Santé des Plantes et Environnement
2015
Délégation Paris 7
2011
Sorbonne Paris Cité
2011
In this research, we highlight an innovative combinatorial approach to explore the correlation between elemental composition of SrTiO 3 thin films and their photoelectrochemical characteristics for water splitting.
In this work, we have evidenced the impact of stoichiometry on photocatalytic properties ZnO nanofilms grown by atomic layer deposition (ALD).
Methane, discovered in 1766 by Alessandro Volta, is an attractive energy source because of its high heat combustion per mole carbon dioxide. However, methane the most abundant hydrocarbon atmosphere and important greenhouse gas, with a 21-fold greater relative radiative effectiveness than CO2 on per-molecule basis. To avoid or limit formation pollutants that are dangerous for both human health atmospheric environment, catalytic appears to be one promising alternatives thermal combustion....
Abstract Electrocatalysis is essential for facilitating reactions that convert electrical energy into chemical or vice versa. This particularly relevant in the context of renewable sources, where efficient hydrogen production through water splitting critical storage and utilization. review examines replacement platinum group metal (PGM) electrocatalysts with transition (TM) thin films synthesized via vapor deposition (CVD) atomic layer (ALD). TM like nickel, cobalt, iron have emerged as...
Abstract Tuning of the electrical parameter (e.g. power and pulsed discharge) an Atmospheric Pressure Dielectric Barrier Discharge (AP‐DBD) plasma Maleic Anhydride (MA) vinyltrimethoxysilane (VTMOS) allows formation coatings with different combination anhydride/carboxylic group surface density, morphology deposition rate. Pulsing discharge favours incorporation MA a high structural retention, leading to chemical composition similar expected conventional MA‐VTMOS copolymer one. A kinetic...
The improvement of mechanical properties polymer-based nanocomposites is usually obtained through a strong polymer–silica interaction. Most often, precipitated silica nanoparticles are used as filler. In this work, we study the synergetic effect occurring between dual silica-based fillers in styrene-butadiene rubber (SBR)/polybutadiene (PBD) matrix. Precipitated Highly Dispersed Silica (HDS) (10 nm) have been associated with spherical Stöber (250 and anisotropic nano-Sepiolite. By imaging...
In silica-rubber based nanocomposites, a single organo-silicon is often used to compatibilize and covalently link silica rubber. this work, we have investigated the impact, at micro- macroscales, of decoupling hydrophobization coupling activity silane by pretreating with two different chemistries. The first one, mercaptosilane, agent that promotes covalent between rubber during sulfur-mediated vulcanization reaction. second an alkylsilane, aims improve dispersion. For both kind silanes,...
In this study, less contaminated and porous SiO2 films were grown via ALD at room temperature. addition to the well-known catalytic effect of ammonia, self-limitation reaction was demonstrated by tuning exposure SiCl4, NH3 H2O. This pure approach generated oxide layers with very low chloride contamination in films. optimized RT-ALD process could be applied a wide range substrates that need 3D-coated, similar mesoporous structured membranes.
The current study presents for the very first time to our knowledge synthesis, characterization, and application of regio-selectively modified dendritic silica particles (RMDS) in tire rubber composites. So far, no has ever reported mesoporous bringing greater mechanical properties than small fractal precipitated silica. With testing (DMA, tensile strength) advanced imaging (TEM-EDS, HIM-SIMS, micro-CT), it was demonstrated that enable superior reinforcement rubber-based nanocomposites...
The electrochemical one-electron reduction of tert-nitrobutane in N,N'-dimethylformamide is a typical reaction, which has been shown to follow the quadratic model outersphere electron transfer. variation standard rate constant with temperature allows separate determination reorganization energy and pre-exponential factor. value found for former agreement independent estimates solvent intramolecular energies. latter, significantly larger than collision frequency, implies that reaction starts...
The construction of a ZnO/SnO2 heterostructure is considered in the literature as an efficient strategy to improve photocatalytic properties ZnO due electron/hole delocalisation process. This study dedicated investigation performance heterostructures directly synthesized macroporous glass fibres membranes. Hydrothermal nanorods have been functionalized with SnO2 using atomic layer deposition (ALD) coverage rate on was precisely tailored by controlling number ALD cycles. We highlight here...
This review mainly relied on advanced TiO 2 , ZnO, and SnO nanostructures for photocatalysis; therefore, their physical chemical properties are hereafter summarized. We will discuss the various approaches that have been already proposed such as doping, heterostructure fabrication, use of plasmonic materials. wish to draw here a particular attention semiconductor/semiconductor heterostructures.
This paper highlights the use of Al<sub>2</sub>O<sub>3</sub> and SnO<sub>2</sub> films as protecting layers to tailor optical properties biocompatibility ZnO nano-films.
Combinatorial approach has been widely recognized as a powerful strategy to develop new-higher performance materials and shed the light on stoichiometry-dependent properties of known systems. Herein, we take advantage unique features chemical beam vapor deposition fabricate compositionally graded Na1+xTaO3±δ thin films with −0.6 < x 0.5. Such varied composition was enabled by ability employed technique deliver combine an extensive range precursors flows over same area. The film growth...
The rational design of photoanode materials for photoelectrochemical (PEC) water splitting is a critical aspect towards making this technology available large-scale renewable energy transition. In respect, we present here the combinatorial tailoring PEC performance sodium tantalate (NaTaO3)-based ternary and quaternary oxide thin films grown by chemical beam vapor deposition. incorporation selected dopants, namely vanadium strontium, mainly at B-site orthorhombic perovskite NaTaO3 structure,...
In this paper, an original homemade system is presented in detail for the electrical and thermoelectrical characterizations of several types materials from bulk to thin films. This setup was built using a modulated CO2 laser beam probe thermoelectric properties at different depths below surface. It allows simultaneous measurement conductivity (σ) Seebeck coefficient (S), room temperature up 250 °C. A commercial sample Bi2Te3 first used validate measurement. Single crystalline silicon (sc-Si)...