Facile synthesis of epsilon iron oxides via spray drying for millimeter-wave absorption

A simple, scalable spray drying method was developed for high-yield epsilon iron oxide (ε-Fe 2 O 3 ) synthesis. The ε-Fe 2 O 3 particle size can be tailored by varying the annealing temperature and molar ratio of Fe/Si, producing a high-purity ε-phase. This strategy also enables ferromagnetic resona...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2022-10, Vol.58 (81), p.11442-11445
Main Authors: Jo, Gi Ryeon, Yun, Min Byeol, Hun Son, Yeong, Park, Byeongjin, Lee, Jung-Goo, Kim, Young-Guk, Son, Young-Guk, Baek, Youn-Kyoung
Format: Article
Language:English
Subjects:
Ferric oxide
Ferromagnetic resonance
Ferromagnetism
Iron oxides
Millimeter waves
Spray drying
Synthesis
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Summary:A simple, scalable spray drying method was developed for high-yield epsilon iron oxide (ε-Fe 2 O 3 ) synthesis. The ε-Fe 2 O 3 particle size can be tailored by varying the annealing temperature and molar ratio of Fe/Si, producing a high-purity ε-phase. This strategy also enables ferromagnetic resonance tuning, making it potentially usable in millimeter-wave absorbers.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc03168j