Poster De Conférence Année : 2025

Study of the reactivity of Fe(0) nanoparticles towards ammonia

Résumé

Iron nitrides, composed of environment friendly elements, have significant potential to afford sustainable magnets due to their exceptional magnetic properties 1 . Although traditional synthesis methods such as, gas nitriding, chemical vapor deposition, sputtering, chemical reduction and solvothermal synthesis are energy-intensive 2 , our team has developed an innovative approach based on their direct synthesis from iron nanoparticles 3 . In this study, we first stabilize and clean iron nanoparticles under a mixed argon/hydrogen flow. Then, a low-temperature nitridation step with ammonia is applied. The samples prepared are characterized by X-ray diffraction, and transmission electron microscopy. The results obtained show that the N content can be controlled, and pure iron nitride phases can be reached such as e.g. Fe2N, paving the way for potential applications in various technological fields.

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Dates et versions

hal-05551265 , version 1 (13-03-2026)

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  • HAL Id : hal-05551265 , version 1

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Christian Zamble, Azadeh Edalat, Catherine Amiens, Marc Respaud. Study of the reactivity of Fe(0) nanoparticles towards ammonia. C'Nano2025, Mar 2025, Paris, France. ⟨hal-05551265⟩
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