A5048512031- Gold and Silver Nanoparticles Synthesis and Applications
- Laser-Ablation Synthesis of Nanoparticles
- nanoparticles nucleation surface interactions
- Bacteriophages and microbial interactions
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Electrocatalysts for Energy Conversion
- High Entropy Alloys Studies
- Catalysis and Oxidation Reactions
- Biosensors and Analytical Detection
- Pigment Synthesis and Properties
- Catalytic Processes in Materials Science
- Graphene research and applications
- High-Temperature Coating Behaviors
- Advanced biosensing and bioanalysis techniques
- Carbon Nanotubes in Composites
- Chemical and Physical Properties of Materials
- Nanomaterials for catalytic reactions
- Adsorption and biosorption for pollutant removal
- Subcritical and Supercritical Water Processes
- Quantum Dots Synthesis And Properties
Centre National de la Recherche Scientifique
2022-2024
Interfaces Traitements Organisation et Dynamique des Systèmes
2022-2024
Université Paris Cité
2022-2024
Institut de Chimie Moléculaire et des Matériaux d'Orsay
2023
Laboratoire d'Étude des Microstructures
2018-2023
Office National d'Études et de Recherches Aérospatiales
2022-2023
Université Paris-Saclay
2020-2023
At the nanoscale, synthesis of a random alloy (i.e. without phase segregation, whatever composition) by chemical remains difficult task, even for simple binary type systems. In this context, unique approach based on colloidal route is proposed enabling face-centred cubic and monodisperse bimetallic, trimetallic, tetrametallic pentametallic nanoparticles with diameters around 5 nm as solid solutions. The Fe-Co-Ni-Pt-Ru (and its subsets) considered challenging task each element has fairly...
The aim of the present work is to valorise brewing industry’s waste, i.e., brewer’s spent grain (BSG), into functional biocarbon for environmental catalysis applications. In this context, cost-effective and environmentally friendly biochar support coated with in-situ-generated Ag-Cu nanocrystals, was developed via wet impregnation BSG biomass powder copper (II) nitrate trihydrate silver aqueous solution prior pyrolysis at moderate temperature (500 °C). Small-size homogenously distributed...
Biotemplated syntheses have emerged as an efficient strategy to control the assembly of metal nanoparticles (NPs) and generate promising plasmonic properties for sensing or biomedical applications. However, understanding nucleation growth mechanisms metallic nanostructures on biotemplate is essential prerequisite developing well-controlled nanotechnologies. Here, we used liquid cell Transmission Electron Microscopy (TEM) reveal how formation kinetics gold NPs affects their size density...
The surfactant used during a colloidal synthesis is known to control the size and shape of metallic nanoparticles. However, its influence on nanoparticle (NP) structure still not well understood. In this study, we show that can significantly modify lattice parameter crystalline particle. First, our electron diffraction measurements reveals NiPt nanoparticles around 4 nm in diameter covered by mixture oleylamine oleic acid (50:50) display expansion 2% when compared same particles without...
Chemical and physical synthesis methods were developed to fabricate high entropy nanoalloys containing up five metals. TEM was exploited reveal size compositional effects on the nanophase diagram of these complex nanostructures.
We report a new and versatile colloidal route towards the synthesis of nanoalloys with controlled size chemical composition in solid solution phase (without segregation such as core-shell structure or Janus structure) ordering. The principle procedure is based on correlation between oxidation-reduction potential metal cations present precursors required temperature to nucleate particles without segregation. demonstrated
Abstract We describe here a new process for the synthesis of very high quality 2D Covalent Organic Frameworks (COFs), such C 2 N and CN carbon nitrides. This relies on use metallic surface as both reagent support coupling small halogenated building blocks. The conditions assembly reaction are chosen so to leave inorganic salts by-products surface, further confine increase layers. found that under these conditions, directly returns few layers material. structure/quality materials is...
The employment of biomolecular templates for the synthesizing nanohybrid constructs is expanding, driven by their prospective uses in biosensing and biomedical fields. Gold nanoparticles (AuNPs) and, particular, assemblies are especially preferred Surface Enhanced Raman Spectroscopy (SERS) because ability to amplify signals through localized surface plasmon resonances, thus enabling detection molecules at exceedingly low concentrations. Our investigative approach dedicated studing role...
Abstract This manuscript describes a new process for the synthesis of very high quality 2D Covalent Organic Frameworks (COFs), such C2N and CN carbon nitrides. The structure/quality these materials is demonstrated by extensive cross-characterisations at different scales. availability large, layers opens interesting perspectives, example in photochemistry electronics (intrinsic transport properties, gap substrate graphene, etc...). We thus consider that this work could be interest to broad...