High Dielectric Fe3O4 and Fe2O3 Nanoparticles Deposited on Graphite Nanosheets for Electromagnetic Wave Absorption
Source abstract
Abstract
Fe3O4/graphite nanosheets (GNs) nanocomposites were obtained by the solvothermal method and calcined in an air environment to obtain Fe2O3/GNs nanocomposites. The phase and microstructure can clearly demonstrate the evolution process of Fe3O4/GNs to Fe2O3/GNs nanocomposites. The Fe3O4/GNs nanocomposites will be converted from Fe3O4 to Fe2O3 during calcination to form nanoparticles. When the calcination temperature is 250 °C, the glucose on the surface of the S-250 sample begins to carbonize, resulting in an excellent reflection loss value of −66.593 dB when the thickness is 2.8 mm and the effective absorption bandwidth is 3.28 GHz. The mutual contact between the nanoparticles and GNs makes the composites produce more interface/dipole polarization and better impedance matching. Calcination converts Fe3O4/GNs to Fe2O3/GNs, which is a high-performance design with a unique structure and has potential applications in the field of electromagnetic-wave absorption.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 151000, People’s Republic of China
School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People’s Republic of China
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Xiamen 361100, People’s Republic of China
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Weihai 264209, People’s Republic of China
Funding
National Natural Science Foundation of China
References (47)
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