Volume 142, Issue 15 e56724
RESEARCH ARTICLE

Controllable Fabrication of MnCo2O4@Polypyrrole@MXene Ternary Composites for Electromagnetic Wave Absorption

Shaojuan Cheng

Shaojuan Cheng

Cheng Shaojuan, School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, China

Contribution: Conceptualization (lead), Data curation (lead), Funding acquisition (lead)

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Rufeng Jia

Corresponding Author

Rufeng Jia

School of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang, China

Correspondence:

Rufeng Jia ([email protected])

Shaobing Liu ([email protected])

Contribution: Writing - review & editing (equal)

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Baolin Yin

Baolin Yin

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China

Contribution: Software (supporting)

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Weipo Shang

Weipo Shang

Shang Weipo, Zhengzhou JunAo Advanced Material Tech Co. Ltd, Zhengzhou, China

Contribution: ​Investigation (supporting)

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Shaobing Liu

Corresponding Author

Shaobing Liu

School of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang, China

Correspondence:

Rufeng Jia ([email protected])

Shaobing Liu ([email protected])

Contribution: Writing - review & editing (equal)

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First published: 09 January 2025
Citations: 1

Funding: The authors received no specific funding for this work.

ABSTRACT

Nowadays, excessive microwave radiation has become one of the urgent factors affecting human health. To solve the negative effects, electromagnetic wave-absorbing materials have gradually become indispensable applications. Here, MnCo2O4@polypyrrole (PPy)@MXene (MPM) ternary composites are successfully synthesized by the combination of hydrothermal synthesis, high-temperature sintering, in situ polymerization method, and low-temperature freeze drying. The synergistic effect between dielectric loss and magnetic loss of MnCo2O4, Ppy, and MXene is studied in detail, showing the prepared composites have excellent absorption properties. MPM-1 exhibits minimum reflection loss (RLmin) of −62.99 dB at 16.04 GHz under the ultra-thin thickness (1.21 mm, 50 wt%), and the effective absorption bandwidth (EAB) is 3.94 GHz (13.44–17.38 GHz) at 1.28 mm (50 wt%). The prepared MPM composites have ultra-thin thickness, wide absorption bandwidth, and excellent microwave absorption properties, which are ascribed to the combination of dielectric loss, magnetic loss, and multiple reflection and scattering effects of core–shell structure. These composites can be used as a significant electromagnetic wave absorbing material, and provide a new research idea for the application of ternary composite materials in electromagnetic wave absorbing materials.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

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