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MOFs-Derived Three-Phase Microspheres: Morphology Preservation and Electromagnetic Wave Absorption.

ABSTRACT: 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 Co₃O₄ nanoparticles (NCMO) were successfully synthesized using a mild oxidation method. Benefiting from the multi-component composition and a unique microstructure, the RL_min 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.

SUBMITTER: Yang X

PROVIDER: S-EPMC9332212 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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MOFs-Derived Three-Phase Microspheres: Morphology Preservation and Electromagnetic Wave Absorption.

Yang Xin X Shu Tie T Yang Xianfeng X Qiao Min M Wang Dashuang D Li Xinghua X Rao Jinsong J Liu Zhaohui Z Zhang Yuxin Y Yang Pingan P Yao Kexin K

Molecules (Basel, Switzerland) 20220726 15

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 Co3O4 nanoparticles (NCMO) were successfully synthesized using a mild oxidation method. Benefiting from the multi-component composition and a unique microstructure, the RLmin of CNMO can reach -46.8 dB at 17 GHz, with an effective absorption bandwidth of 4.1 GHz (13.9-1 ...[more]

PMID: 35897949

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