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MOF Ligand-Directed Heterointerface Engineering for Tuning Electromagnetic Loss Mechanisms in Fe3O4/Polymetallic Spinel Ferrite Composites
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DOI:10.1016/j.carbon.2026.121971.png)
Abstract
En 中文
• An inverse strategy involving prior synthesis of metal microspheres followed by epitaxial growth of Fe-based MOFs is proposed, using three ligands to regulate precursor topology and defects, establishing a “ligand-precursor-heterointerface” relationship. • Ligand-directed heterointerfaces induce charge accumulation and a built-in electric field via the Mott-Schottky effect, while bimetallic distortion introduces oxygen vacancies, synergistically enhancing dipolar and conduction polarization. • Ligands balance dielectric and magnetic losses by tuning ferrite crystallite size and anisotropy, thereby optimizing impedance matching and underscoring their essential role in governing overall absorption performance.
Keywords:
Metal-organic frameworks (MOFs)
heterointerface
electromagnetic wave absorption
ferrite
Journal
IF:
11.6
Papers:
2.0W
Citations:
10.5W
