MOFs-Derived Three-Phase Microspheres: Morphology Preservation and Electromagnetic Wave Absorption
oleh: Xin Yang, Tie Shu, Xianfeng Yang, Min Qiao, Dashuang Wang, Xinghua Li, Jinsong Rao, Zhaohui Liu, Yuxin Zhang, Pingan Yang, Kexin Yao
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2022-07-01 |
Deskripsi
Reasonable structural design and composition control are the dominant factors for tuning the electromagnetic absorbing properties of materials. In this paper, microspheres composed of NiO, Ni, and Co<sub>3</sub>O<sub>4</sub> nanoparticles (NCMO) were successfully synthesized using a mild oxidation method. Benefiting from the multi-component composition and a unique microstructure, the RL<sub>min</sub> of CNMO can reach −46.8 dB at 17 GHz, with an effective absorption bandwidth of 4.1 GHz (13.9–18 GHz). The absorbing properties and the absorbing mechanism analysis showed that the microsphere-structured NCMO composed of multi-component nanoparticles enhanced the interface polarization, thereby improving the absorption performance. This research provides a new avenue for MOF-derived oxide materials with excellent electromagnetic wave absorbing properties.