作者：Zhengzheng Guo*, Peien Luo, Ze Zong, Zhengyan Chen, Ping Song, Yanling Jin, Fang Ren, Penggang Ren*
关键字：电磁耦合作用，异质界面，电磁波吸收
论文来源：期刊
具体来源：Materials Today Physics
发表时间：2023年
Developing high-efficiency electromagnetic wave (EMW) absorption materials is urgently demanded but challenging to tackle the increasingly serious electromagnetic radiation pollution. In this regard, a novel multiheterostructure hybrid consisting of two-dimensional MXene nanosheets and zero-dimensional CoFe2O4 nanoparticles was successfully constructed by facile solvothermal approach. Benefiting from the improved impedance matching, electric/magnetic coupling effect, polarization loss originated from numerous heterointerfaces and defects, as well as multiple reflection and scattering, the resultant CoFe2O4/MXene (CM) hybrids realize brilliant EMW absorption performance. Notably, the final EMW absorption performance of CM hybrids is closely associated with their electromagnetic parameters, which could be facilely regulated by adjusting the ratios of CoFe2O4 to MXene. The resultant CM hybrids present the optimal minimum reflection loss (RLmin) of ? 58.8 dB at 9.59 GHz with a tiny thickness of 2.36 mm and exhibit a broad effective absorption bandwidth (EAB) of 6.3 GHz (11.7–18.0 GHz) at a thickness of only 2.03 mm, which covers the whole Ku band. In addition, the effectiveness of CM hybrids as highly efficient EMW absorption materials in real condition is intuitively demonstrated by the radar cross section simulation. This work paves a new route for synthesizing high-performance MXene-based EMW absorption materials with superior practical application value.