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Synthesis of three-dimensional reduced graphene oxide@Fe2O3 for high efficient microwave absorption

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Abstract

Three-dimensional (3D) graphene foam has drawn more and more attention due to its unique structural features such as porous, large specific surface area and tunable electromagnetic characteristics, thus becomes preferred candidates in the field of microwave absorption (MA) materials. In this study, the 3D reduced graphene oxide (rGO) loaded with magnetic α-Fe2O3 nanocrystals were synthesised by one-step solvothermal method using ethanol (EA) as auxiliary solvent (3D-EA-rGO@Fe2O3). The electromagnetic parameters can be tailored by changing Fe₂O₃ content. The 3D-EA-rGO@Fe2O3 foam exhibits outstanding MA properties, reaching a minimum reflection loss (RLmin) of -71.05 dB at 10.8 GHz with a thickness of 2.45 mm, and an effective absorption bandwidth (RL ≤ -10 dB) of 5.87 GHz (11.03–16.90 GHz). Furthermore, the 3D-EA-rGO@Fe2O3 exhibits excellent RCS reduction and remarkable lightweight, which has great application potential to meet the increasingly demands for practical applications of microwave absorption materials.

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  • Carbon Materials
  • Graphene Oxide
  • Graphene
  • Metal Oxides
  • Microwave Photonics
  • Microwave Chemistry

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Acknowledgements

This study was supported by the National Natural Science Foundation of China (No. 51303106) and the Xingliao Elite Program Project (No XLYC1807003).

Funding

National Natural Science Foundation of China,51303106,Qi Yu

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Shenyang Aerospace University, Shenyang, 110136, China

    Qi Yu, Chenglong Du, Yiyi Wang, Yunlong Wang, Daming Zheng & Zhengqian Zhang

  2. Liaoning Key Laboratory of Advanced Polymer Matrix Composites Manufacturing Technology, Shenyang Aerospace University, Shenyang, 110136, China

    Qi Yu, Chenglong Du, Yiyi Wang, Yunlong Wang, Daming Zheng & Zhengqian Zhang

Contributions

All authors contributed to the study conception and design. Qi Yu: Conceptualization (equal); Funding acquisition (lead); Project administration (equal); Writing-review & editing (equal). Chenglong Du: Software (equal); Writing-original draft (lead). Yiyi Wang: Data curation (equal); Validation (equal). Yunlong Wang: Investigation (equal). Daming Zheng: Data curation (equal). Zhengqian Zhang: Data curation (equal).

Corresponding author

Correspondence to Qi Yu.

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The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Yu, Q., Du, C., Wang, Y. et al. Synthesis of three-dimensional reduced graphene oxide@Fe2O3 for high efficient microwave absorption. J Mater Sci: Mater Electron 36, 1233 (2025). https://doi.org/10.1007/s10854-025-15328-3

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