A5103168276- Fusion materials and technologies
- Electrocatalysts for Energy Conversion
- Muon and positron interactions and applications
- Catalytic Processes in Materials Science
- Electrochemical Analysis and Applications
- Particle accelerators and beam dynamics
- Fuel Cells and Related Materials
- Machine Learning in Materials Science
- Hydrogen Storage and Materials
- Asymmetric Hydrogenation and Catalysis
- nanoparticles nucleation surface interactions
- Advanced Electron Microscopy Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Gas Sensing Nanomaterials and Sensors
- Nuclear Materials and Properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Catalysis and Oxidation Reactions
- Chemical Synthesis and Characterization
- Thermodynamic and Structural Properties of Metals and Alloys
- Advanced X-ray Imaging Techniques
- Anodic Oxide Films and Nanostructures
- Magnetic confinement fusion research
- Nuclear reactor physics and engineering
- Nanomaterials for catalytic reactions
- Carbon dioxide utilization in catalysis
Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces
2022-2025
Université Savoie Mont Blanc
2023-2024
Centre National de la Recherche Scientifique
2015-2024
Université Grenoble Alpes
2022-2024
Institut polytechnique de Grenoble
2022-2024
Grenoble Ecole de Management
2024
Laboratoire d'Electrochimie Moléculaire
2021-2023
Institut de Recherche Interdisciplinaire de Grenoble
2023
European Synchrotron Radiation Facility
2023
Université Paris Cité
2017-2020
Preliminary testing of fuel cell catalysts in a model laboratory environment is an essential step the technology readiness level progression material candidates toward commercial device. However, case platinum alloy for oxygen reduction reaction (ORR) proton exchange membrane cells (PEMFCs), there no consensus on protocol employed catalyst conditioning (activation or break-in), leading to important discrepancies literature. Here, effects electrochemical PtNi nanocatalyst structure, chemical...
<title>Abstract</title> The palladium-hydrogen system is essential for applications in water electrolysis, catalysis, hydrogen storage, and sensing technologies. Understanding the transition of Pd nanocrystals from hydrogen-poor (α) phase to hydrogen-rich (β) crucial elucidating absorption/desorption mechanisms, as well related phenomena such trapping. In this study, we employ situ Bragg Coherent Diffraction Imaging (BCDI) investigate individual palladium nanocrystals,mapping their strain...
Nanostructured palladium (Pd) is a universal catalyst that widely used in applications ranging from catalytic converters of combustion engine cars to hydrogenation catalysts industrial processes. Standard protocols for synthesizing such nanoparticles (NPs) typically use bottom‐up approaches. They utilize special and often expensive physical techniques or wet‐chemical methods requiring organic surfactants. These surfactants should be removed before applications. In this article, the synthesis...
Abstract Designing electrocatalysts with optimal activity and selectivity relies on a thorough understanding of the surface structure under reaction conditions. In this study, experimental computational approaches are combined to elucidate reconstruction processes low‐index Pd surfaces during H‐insertion following proton electroreduction. While electrochemical scanning tunneling microscopy clearly reveals pronounced roughening morphological changes Pd(111), Pd(110), Pd(100) cyclic...
The one-step seed-mediated synthesis is widely used for the preparation of ferromagnetic metal nanoparticles (NPs) since it offers a good control particle morphology. Nevertheless, this approach suffers from lack mechanistic studies because difficulties following in real time heterogeneous nucleation and predicting structure effects with seeds that are generated situ. Here, we propose complete scheme heteronucleation process involved one-pot syntheses cobalt liquid polyols, relying on...
Ferromagnetic hcp cobalt nanoparticles (NPs) are prepared by the polyol process using long-chain carboxylates as shape-directing agents, applying different stirring rates during synthesis. Particles with a rate lower than ca. 150 rpm very well-defined anisotropic crystals smooth lateral facets and low stacking fault densities. The growth proceeds along c axis of structure which corresponds to long particles. Increasing speed leads lowering mean aspect ratio, an increase in structural...
Unsupported cobalt nanoparticles are active and chemoselective catalysts for the solvent-free acceptorless dehydrogenation of alcohols.
Ligands matter for shaped decorated Co nanoparticles, at the frontier between homogeneous and heterogeneous catalysis.
Palladium hydrides (PdHx) present a model system of both fundamental and applied importance: solute-induced phase transition affects evolution electrooxidation molecular hydrogen in water electrolyzers fuel cells, respectively, as well storage, its sensing catalysis many hydrogenation reactions. It is documented that (H) atoms get progressively trapped Pd under various sorption–desorption modes, leading to embrittlement influencing bulk interfacial properties. However, the intensity...
A simple electrochemical surfactant-free top-down methodology for the synthesis of nanowires with non-stoichiometric Magnéli phase Ti 9 O 17 is presented.
A reversed-phase high-performance liquid chromatographic (HPLC) method is developed for the determination of products phase oxidation p-xylene to terephthalic acid catalyzed by cobalt naphtenate with methyl benzoate as a solvent. Analyses are performed on 250- × 4.6-mm octadecylsilica (ODS; C18) bonded column 10- 3-mm guard in 22 min. three-component mobile (methanol, acetonitrile, water) used gradient elution, and ultraviolet detection selectively at 220 254 nm. The internal standard (using...
The extraction of tritium from the liquid alloy 17Li83Pb has been examined taking into consideration equations related to design “droplet spray” and “bubble” extractors in order verify which are higher recovery efficiencies can be realized so as minimize permeation water cooling system. As far droplet spray unit is concerned, efficiency correlated pressure extractor, radius residence time droplets extractor. For desorption alloy, flowing countercurrent a helium stream bubble axial dispersion...