Facile and fast synthesis of highly ordered L10-FeNi nanoparticles
Abstract
The chemically ordered L10-FeNi alloy is a promising candidate for next generation rare-earth-free permanent magnets, which can revolutionize the high-performance magnets market currently dominated by Nd-Fe-B. Despite many efforts, the experimental results fall short of theoretical predictions, and current approaches are not suitable for industrial implementation. In this work, we propose an innovative and efficient synthesis method that exploits the natural order of a crystalline Ni/Fe complex, which closely mimics the atomic organization in the L10 structure, to drive the formation of the ordered phase. By low-temperature reduction of the complex salt, carbon coated aggregates of FeNi alloy nanoparticles (20 – 120 nm) with a >55% of L10 phase, high coercivity (up to 65 mT) and large saturation magnetization (∼ 140 Am2/kg) were obtained. The results pave the way for the development of a novel and sustainable route to produce high-anisotropy FeNi nanoparticles of potential interest for next generation critical-element-free permanent magnets.
Related
- Facile one-pot multicomponent synthesis of polyhydroquinolines: a new class of α-glucosidase inhibitors
- Facile synthesis of trans racemic 1,4-diaryl substituted, proline esters via Ugi multicomponent reaction.
- Space Charge Layer and Facile Halide Rearrangement Enable Fast Lithium-Ion Transport at Halide Solid Electrolyte Interfaces
- Facile synthesis of C2, C3-difunctionalized indoles via domino cascade annulation of 2-aminochalcones with phenacyl bromides
- Facile synthesis of a cube-shaped MnO@C composite as a long-life anode material for lithium-ion batteries.
BibTeX
@article{varvaro2026facile,
title = {{Facile and fast synthesis of highly ordered L10-FeNi nanoparticles}},
author = {G. Varvaro and P. Imperatori and S. Laureti and Davide Peddis and F. Locardi and M. Ferretti and C. Cannas and M. Sanna Angotzi and Nader Yaacoub and A. Capobianchi},
journal = {Scripta Materialia},
year = {2026},
month = sep,
doi = {10.1016/j.scriptamat.2023.115754},
url = {https://hal.science/hal-05754149v1},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Facile and fast synthesis of highly ordered L10-FeNi nanoparticles
AU - G. Varvaro
AU - P. Imperatori
AU - S. Laureti
AU - Davide Peddis
AU - F. Locardi
AU - M. Ferretti
AU - C. Cannas
AU - M. Sanna Angotzi
AU - Nader Yaacoub
AU - A. Capobianchi
PY - 2026
DA - 2026/09/18
JO - Scripta Materialia
DO - 10.1016/j.scriptamat.2023.115754
UR - https://hal.science/hal-05754149v1
AB - The chemically ordered L10-FeNi alloy is a promising candidate for next generation rare-earth-free permanent magnets, which can revolutionize the high-performance magnets market currently dominated by Nd-Fe-B. Despite many efforts, the experimental results fall short of theoretical predictions, and current approaches are not suitable for industrial implementation. In this work, we propose an innovative and efficient synthesis method that exploits the natural order of a crystalline Ni/Fe complex, which closely mimics the atomic organization in the L10 structure, to drive the formation of the ordered phase. By low-temperature reduction of the complex salt, carbon coated aggregates of FeNi alloy nanoparticles (20 – 120 nm) with a >55% of L10 phase, high coercivity (up to 65 mT) and large saturation magnetization (∼ 140 Am2/kg) were obtained. The results pave the way for the development of a novel and sustainable route to produce high-anisotropy FeNi nanoparticles of potential interest for next generation critical-element-free permanent magnets.
SN - 1359-6462
SN - 1872-8456
ER -