Anionic high-entropy doping engineering for electromagnetic wave absorption
High-entropy doping (HED) engineering surpasses conventional methods for optimizing atomic configurations and electronic structures, opening new paths for developing advanced electromagnetic wave absorbing (EWA) materials. However, the application of anionic HED engineering to tailor EWA mechanisms remains unexplored. Herein, we employ in situ pyrolysis combined with a three-stage solvent thermal doping procedure to systematically induce anion multibody interactions, thereby facilitating the inheritance and accumulation of beneficial EWA properties. The research shows that anions with various electronegativities precisely balance free charges and create a significant localized charge imbalance, triggering the 'directional cocktail effect'. This effect induces an optimal dielectric loss mechanism and enhances the EWA performance. With only 7.5 wt% filling, the effective absorption bandwidth and minimum reflection loss are 7.05 GHz and -60 dB, respectively. Overall, we report an anionic HED engineering within thin a graphite framework, which may be conceptually extendable for electromagnetic modulation of other two-dimensional van der Waals EWA materials.
Authors
- Linling Xu (ORCID: https://orcid.org/0000-0002-1841-4645)
- Xuewei Tao (ORCID: https://orcid.org/0000-0001-6999-315X)
- Ruiyang Tan (ORCID: https://orcid.org/0000-0002-8432-8972)
- Hexia Huang (ORCID: https://orcid.org/0000-0001-5193-6384)
- Wenhui Zhu (ORCID: https://orcid.org/0009-0005-7941-5659)
- Yi Yan (ORCID: https://orcid.org/0000-0003-4119-9047)
- Jiaqi Tao (ORCID: https://orcid.org/0000-0003-0770-7757)
- Zhengjun Yao (ORCID: https://orcid.org/0000-0002-2430-6659)
- Jintang Zhou (ORCID: https://orcid.org/0000-0003-1442-0869)
- Pïng Chen (ORCID: https://orcid.org/0000-0001-8264-1730)
- Jin Wang (ORCID: https://orcid.org/0000-0002-9881-7208)
- Hongbao Zhu
Institutions
- Nanjing Institute of Technology (CN)
- Nanjing University of Science and Technology (CN)
- Nanjing University of Posts and Telecommunications (CN)
- Nanjing University (CN)
- Nanjing University of Aeronautics and Astronautics (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-04-02
- DOI
- https://doi.org/10.1038/s41467-025-58448-4
- Citations
- 103
- Primary Topic
- Electromagnetic wave absorption materials
- Type
- article
- Field-Weighted Citation Impact
- 44.02
Funders
- National Natural Science Foundation of China
- Government of Jiangsu Province
- Nanjing University of Aeronautics and Astronautics
- Ministry of Industry and Information Technology of the People's Republic of China
- Nanjing University