| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Baaziz, Walid
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023Aging of Pd under tritium: Influence of 3He generation and associated mechanismscitations
- 2022Liquid Processing of Bismuth–Silica Nanoparticle/Aluminum Matrix Nanocomposites for Heat Storage Applicationscitations
- 20210D/2D Heterostructures Vertical Single Electron Transistorcitations
- 20210D/2D Heterostructures Vertical Single Electron Transistorcitations
- 2021New Phenotype and Mineralization of Biogenic Iron Oxide in Magnetotactic Bacteriacitations
- 2020Quantitative Analysis of the Specific Absorption Rate Dependence on the Magnetic Field Strength in ZnxFe3−xO4 Nanoparticlescitations
- 2020Polymer-derived Si3N4 nanofelts for flexible, high temperature, lightweight and easy-manufacturable super-thermal insulatorscitations
- 2019The effect of basic pH on the elaboration of ZnFe2O4 nanoparticles by co-precipitation method: Structural, magnetic and hyperthermia characterizationcitations
- 2019The effect of basic pH on the elaboration of ZnFe2O4 nanoparticles by co-precipitation method: Structural, magnetic and hyperthermia characterizationcitations
- 2019Versatile Roles of Metal Species in Carbon Nanotube Templates for the Synthesis of Metal–Zeolite Nanocomposite Catalystscitations
- 2019Macroscopic graphite felt containing palladium catalyst for liquid-phase hydrogenation of cinnamaldehydecitations
- 2018Effect of reaction environment and in situ formation of the precursor on the composition and shape of iron oxide nanoparticles synthesized by the thermal decomposition methodcitations
- 2014Design of Covalently Functionalized Carbon Nanotubes Filled with Metal Oxide Nanoparticles for Imaging, Therapy, and Magnetic Manipulationcitations
- 2014Magnetic Iron Oxide Nanoparticles: Reproducible Tuning of the Size and Nanosized-Dependent Composition, Defects, and Spin Cantingcitations
- 2014Tuning of Synthesis Conditions by Thermal Decomposition toward Core–Shell Co x Fe 1– x O@Co y Fe 3– y O 4 and CoFe 2 O 4 Nanoparticles with Spherical and Cubic Shapescitations
- 2013A single-stage functionalization and exfoliation method for the production of graphene in water: stepwise construction of 2D-nanostructured composites with iron oxide nanoparticlescitations
- 2013A single-stage functionalization and exfoliation method for the production of graphene in water: stepwise construction of 2D-nanostructured composites with iron oxide nanoparticlescitations
- 2013Carbon nanotube channels selectively filled with monodispersed Fe3-xO4 nanoparticlescitations
- 2013High Exchange Bias in Fe 3−δ O 4 @CoO Core Shell Nanoparticles Synthesized by a One-Pot Seed-Mediated Growth Methodcitations
Places of action
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article
Magnetic Iron Oxide Nanoparticles: Reproducible Tuning of the Size and Nanosized-Dependent Composition, Defects, and Spin Canting
Abstract
Équipe 401 : Nanomatériaux pour la vie et développement durable ; International audience ; Iron oxide nanoparticles (NPs) with average sizes in the range 4-28 nm have been obtained by varying different synthesis parameters of the thermal decomposition of an iron precursor (iron stearate) in the presence of surfactants in high boiling solvents. The synthesis parameters affect the NPs nucleation and growth steps, by modifying the stability of iron stearate on which depend the monomer formation and concentration, in agreement with the LaMer model. The monomer formation, which is reaction time and/or temperature dependent, is thus found to vary mainly as a function of the nature of solvents and ligands. The structural and magnetic characterizations of NPs with sizes in the range 5-20 nm confirm that the composition of NPs evolves from the maghemite for small sizes (typically <8 nm) up to a core of rather stoichiometric magnetite surrounded by an oxidized shell for large sizes (>12 nm) via a perturbed oxidized state for intermediate sizes. The values of saturation magnetization lower than those of bulk magnetite and maghemite were found to be related to this composition evolution and to the presence of oxidation defects, surface spin canting and volume spin canting as a function of NPs diameter. Small NPs presented mainly a surface spin canting. NPs with large sizes display M-s which depends on their oxidized shell thickness, defects and surface spin canting. NPs with intermediate sizes display a surface and in particular a volume spin canting due to a disordered structure induced by a perturbed oxidation state in these NPs.