A5022955224- Nuclear Physics and Applications
- Advancements in Battery Materials
- Dark Matter and Cosmic Phenomena
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Neutrino Physics Research
- Nuclear physics research studies
- Particle physics theoretical and experimental studies
- Crystallography and Radiation Phenomena
- Atomic and Subatomic Physics Research
- Astrophysics and Cosmic Phenomena
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Extraction and Separation Processes
- Advanced Battery Technologies Research
- Advanced Materials Characterization Techniques
- Graphene research and applications
- Chemical Synthesis and Characterization
- Advanced NMR Techniques and Applications
- Ion-surface interactions and analysis
- Conducting polymers and applications
- Solid-state spectroscopy and crystallography
- Particle accelerators and beam dynamics
- Phase Equilibria and Thermodynamics
- Particle Detector Development and Performance
Université de Strasbourg
2018-2025
Centre National de la Recherche Scientifique
2018-2025
Institut de Sciences des Matériaux de Mulhouse
2020-2025
Université de Haute-Alsace
2018-2025
Réseau sur le Stockage Electrochimique de l'énergie
2022-2025
Gheorghe Asachi Technical University of Iași
2014
Institute for Theoretical and Experimental Physics
2000-2013
Abstract Sodium‐ion batteries (SIBs) have attracted a significant amount of interest in the past decade as credible alternative to lithium‐ion (LIBs) widely used today. The abundance sodium, along with potential utilization electrode materials without critical elements their composition, led intensification research on SIBs. Hard carbon (HC), is identified most suitable negative for It can be obtained by pyrolysis eco‐friendly and renewable precursors, such biomasses, biopolymers or...
The result of the neutrino magnetic moment measurement at Kalinin Nuclear Power Plant (KNPP) with GEMMA spectrometer is presented. antineutrino-electron scattering investigated. A high-purity germanium detector a mass 1.5 kg placed distance 13.9 m from 3 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mrow><mml:mtext>GW</mml:mtext></mml:mrow><mml:mrow><mml:mtext>th</mml:mtext></mml:mrow></mml:msub></mml:mrow></mml:math>reactor core exposed to antineutrino...
The hard carbon volumetric capacity improves by decreasing the electrode porosity after calendaring (<italic>d</italic><sub>002</sub> decrease). initial CCoulombic efficiency is enhanced when specific surface area of ultra-micropores and active sites are diminished.
Binder-free self-supported hard carbon electrodes derived from biopolymer filter papers impregnated with phenolic resin were designed to study Na storage mechanisms. Experimental evidence of intercalation in the low voltage plateau was found.
Gas adsorption with complementary adsorbate molecules (N<sub>2</sub>, Ar, CO<sub>2</sub>, O<sub>2</sub>, and H<sub>2</sub>) allows to reveal the porosity of hard carbons.
Porous binder-free carbon electrodes were obtained by using cellulose filter paper through soft-salt template synthesis. The electrode thickness could be tuned, and a linear relationship with the specific capacitance in supercapacitors was established.
This work reports on the synthesis of hard carbon spheres (HCS) and impact pyrolysis temperature (1500 to 1900 °C) properties HC its relationship with electrochemical performance in potassium-ion batteries (KIBs). Comparison commercial graphite is provided as well. Spherical morphology, disordered structure, low surface area were obtained for HCSs. Most (interlayer space, active area, oxygen-based functional groups) found decrease increasing temperature, except helium density closed...
The relationship between the properties of hard carbon (HC) and its performance as an anode in sodium-ion batteries (NIBs) is not well understood. To address this issue, five HCs were synthesized from different biopolymer precursors by direct pyrolysis at 1500 °C. reversible capacity was found to increase with increasing graphitic interlayer spacing (d002) active surface area (ASA). coming plateau region predominantly contributes linearly correlates spacing. A closed porosity established...
The hard carbon irreversible capacity loss in Na-ion cells can be reduced by decreasing the total surface area and active (defects).
Producing hard carbon from lignocellulosic biomass has been the focus of recent studies as a promising source anode material for Na-ion batteries. Woody is potential source, but it already well valorized. Consequently, river driftwood can be an excellent alternative, especially since disturbing waste dam regulators. It jeopardize safety, damage intake works, and sink in reservoirs, lowering water quality decreasing reservoir volume. We examine Hydrothermal carbonization (HTC) was carried out...
Hard carbons are promising anode materials for Na-ion batteries that can be produced using a wide variety of synthetic or natural precursors. This work focuses on the development hard from polyphenols derived different vegetal extracts. Herein, five tannin-based (catechu, chestnut, myrobalan, and two mimosa extracts) were used to synthesize through single pyrolysis process at 1500 °C. The precursors lead high carbon yield (35–44%) obtained have disordered structures with large interlayer...
Purifying biogas by removing contaminants and carbon dioxide (CO2) to produce biomethane enhances its energy content, making it suitable as fuel for injection into natural gas grids. Bamboo-derived adsorbents Bamboo-500 (pyrolyzed at 500 °C), Bamboo-700 700 Bamboo-A-900 (activated with CO2 900 °C) were synthesized characterized evaluate their performance CH4 adsorption. Increasing pyrolysis temperature from °C further activation enhanced adsorption capacities of due improved surface area...
Sodium-ion capacitors currently suffer from a lack of understanding porous carbon cathodes. Linear correlations revealed that the specific capacity is driven by surface area, structural defects, and functional groups.
This work reports a fluorine-free polymer binder (Polydihydroxystyrene, PDHS) for the preparation of hard carbon (HC) anodes. Very small amounts (3%) can be used to obtain HC electrodes with high...
Eco-friendly and low-cost polyphenol precursors were used to obtain hard carbon spheres with tuned properties (particle size, structure, porosity). Optimized materials exhibit high Coulombic efficiency specific capacity in Na-ion batteries.
The development of hard carbon (HC) electrodes using biobased binders, formulated in water solvent, is great interest for Na-ion batteries. Five Na-carboxymethyl cellulose (CMC) binders with different molecular weights and degrees substitution were investigated. increase the CMC weight led to an volume necessary slurry preparation a decrease electrode mass loading. Moreover, adhesion was strongly impacted by aluminum current collector properties. A high initial Coulombic efficiency, iCE (up...
The result of the 3-year neutrino magnetic moment measurement at Kalinin Nuclear Power Plant with GEMMA spectrometer is presented. Antineutrino-electron scattering investigated. A HPGe detector 1.5 kg placed a distance 13.9 m from centre 3 GW_th reactor core used in spectrometer. antineutrino flux 2.7x10^13 1/cm^2/s. differential method to extract nu-e electromagnetic events. scattered electron spectra taken 5184+6798 and 1853+1021 hours during ON OFF periods respectively are compared. upper...