Self-Assembled MoS2 Cladding for Corrosion Resistant and Frequency-Modulated Electromagnetic Wave Absorption Materials from X-Band to Ku-Band

Jixi Zhou; Di Lan; Feng Zhang; Yuhang Cheng; Zirui Jia; Guanglei Wu; Pengfei Yin

doi:10.1002/smll.202304932

Self-Assembled MoS₂ Cladding for Corrosion Resistant and Frequency-Modulated Electromagnetic Wave Absorption Materials from X-Band to Ku-Band

Small. 2023 Dec;19(52):e2304932. doi: 10.1002/smll.202304932. Epub 2023 Aug 27.

Authors

Jixi Zhou^{1

2}, Di Lan³, Feng Zhang², Yuhang Cheng², Zirui Jia⁴, Guanglei Wu^{2

5}, Pengfei Yin¹

Affiliations

¹ College of Science, Sichuan Agricultural University, Ya'an, 625014, P. R. China.
² Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 442002, P. R. China.
³ School of Materials Science and Engineering, Hubei University of Automotive Technology, Shiyan, 442002, P. R. China.
⁴ College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China.
⁵ Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, School of Electrical & Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China.

PMID: 37635102
DOI: 10.1002/smll.202304932

Abstract

Reasonable composition design and controllable structure are effective strategies for harmonic electromagnetic wave (EMW) adsorption of multi-component composites. On this basis, the hybrid MoS₂ /CoS₂ /VN multilayer structure with the triple heterogeneous interface is prepared by simple stirring hydrothermal, which can satisfy the synergistic interaction between different components and obtain excellent EMW absorption performance. Due to the presence of multiple heterogeneous interfaces, MoS₂ /CoS₂ /VN composites will produce strong interfacial polarization, while the defects in the sample will become the center of polarization, resulting in dipole polarization. Due to the excellent structural design of MoS₂ /CoS₂ /VN composite material, MoS₂ /CoS₂ /VN composite material not only has good conductive loss and polarization loss, but also can maintain excellent stability in simulated seawater, and enhance corrosion resistance. The MoS₂ /CoS₂ /VN composite with dual functions of corrosion resistant and microwave absorption achieves a minimum reflection loss (RL) of -50.48 dB and an effective absorption bandwidth of up to 5.76 GHz, covering both the X-band and Ku-band. Finally, this study provides a strong reference for the development of EMW absorption materials based on transition metal nitrides.

Keywords: MoS2/CoS2/VN; heterogeneous structures; interface polarization; multiple loss mechanism.

Abstract

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