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

Xin Yang; Tie Shu; Xianfeng Yang; Min Qiao; Dashuang Wang; Xinghua Li; Jinsong Rao; Zhaohui Liu; Yuxin Zhang; Pingan Yang; Kexin Yao

doi:10.3390/molecules27154773

Molecules (Jul 2022)

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

Xin Yang,
Tie Shu,
Xianfeng Yang,
Min Qiao,
Dashuang Wang,
Xinghua Li,
Jinsong Rao,
Zhaohui Liu,
Yuxin Zhang,
Pingan Yang,
Kexin Yao

Affiliations

Xin Yang: Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
Tie Shu: Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
Xianfeng Yang: State Key Laboratory of Photon-Technology in Western China Energy, School of Physics, Northwest University, Xi’an 710127, China
Min Qiao: Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
Dashuang Wang: College of Material Science and Engineering, Chongqing University, Chongqing 400044, China
Xinghua Li: State Key Laboratory of Photon-Technology in Western China Energy, School of Physics, Northwest University, Xi’an 710127, China
Jinsong Rao: College of Material Science and Engineering, Chongqing University, Chongqing 400044, China
Zhaohui Liu: Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
Yuxin Zhang: College of Material Science and Engineering, Chongqing University, Chongqing 400044, China
Pingan Yang: School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
Kexin Yao: Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China

DOI: https://doi.org/10.3390/molecules27154773
Journal volume & issue: Vol. 27, no. 15
p. 4773

Abstract

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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 (13.9–18 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.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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