Facile fabrication of Co-MOF/GNs derivatives as electromagnetic wave absorber with thin thickness for X and Ku bands

Yuanyuan Ma; Yuanhao Jiang; Jinrui Qian; Chunyu Wang; Sibo Kang; Guoqin Chen; Bo Zhong

doi:10.1016/j.ceramint.2023.02.253

Facile fabrication of Co-MOF/GNs derivatives as electromagnetic wave absorber with thin thickness for X and Ku bands

Yuanyuan Ma
, Yuanhao Jiang
, Jinrui Qian
, Chunyu Wang^*
, Sibo Kang
, Guoqin Chen^*
, Bo Zhong

^*Corresponding author for this work

Harbin Institute of Technology
Harbin Institute of Technology (Shenzhen)
Harbin Institute of Technology Weihai
Marine Chemical Research Institute Co., Ltd

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

The application of carbon matrix and magnetic composites as electromagnetic wave absorbing materials has attracted extensive attention. The Co-MOF/Graphite nanoflakes (GNs) derived microwave absorbing material supported by MOF structure was acquired via hydrothermal method and subsequent calcination treatment. The best reflection loss value of the sample obtained by pyrolysis at 600 °C is −43.62 dB at 15.84 GHz, simultaneously, the thickness is only 1.6 mm, and the effective absorption bandwidth (EAB) can reach 5.2 GHz (12.8–18 GHz). The Co-MOF/GNs derivatives possess a thinner absorbent thickness and a rather wide EAB value (mainly distributed in the X and Ku bands). Its absorbing bandwidth and thickness of absorbing agent are far superior to most MOF-derived absorbing materials. Its excellent electromagnetic wave absorption performance is chiefly attributed to multi-component dipole polarization, interface polarization from multiple interfaces, and multiple reflection and scattering effects of sandwich micro-structure with high porosity on electromagnetic waves. This paper provides a certain reference value for the design of lightweight and efficient radar absorbers suitable for X and KU bands, which can be applied to radar absorbing materials, multi-band and various applications.

Original language	English
Pages (from-to)	18745-18755
Number of pages	11
Journal	Ceramics International
Volume	49
Issue number	11
DOIs	https://doi.org/10.1016/j.ceramint.2023.02.253
State	Published - 1 Jun 2023
Externally published	Yes

Keywords

Cobalt
GNs
Metal-organic frameworks
Microwave absorption performance

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10.1016/j.ceramint.2023.02.253

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@article{2d83dd228222466a84f6d8a1fb3b96c2,

title = "Facile fabrication of Co-MOF/GNs derivatives as electromagnetic wave absorber with thin thickness for X and Ku bands",

abstract = "The application of carbon matrix and magnetic composites as electromagnetic wave absorbing materials has attracted extensive attention. The Co-MOF/Graphite nanoflakes (GNs) derived microwave absorbing material supported by MOF structure was acquired via hydrothermal method and subsequent calcination treatment. The best reflection loss value of the sample obtained by pyrolysis at 600 °C is −43.62 dB at 15.84 GHz, simultaneously, the thickness is only 1.6 mm, and the effective absorption bandwidth (EAB) can reach 5.2 GHz (12.8–18 GHz). The Co-MOF/GNs derivatives possess a thinner absorbent thickness and a rather wide EAB value (mainly distributed in the X and Ku bands). Its absorbing bandwidth and thickness of absorbing agent are far superior to most MOF-derived absorbing materials. Its excellent electromagnetic wave absorption performance is chiefly attributed to multi-component dipole polarization, interface polarization from multiple interfaces, and multiple reflection and scattering effects of sandwich micro-structure with high porosity on electromagnetic waves. This paper provides a certain reference value for the design of lightweight and efficient radar absorbers suitable for X and KU bands, which can be applied to radar absorbing materials, multi-band and various applications.",

keywords = "Cobalt, GNs, Metal-organic frameworks, Microwave absorption performance",

author = "Yuanyuan Ma and Yuanhao Jiang and Jinrui Qian and Chunyu Wang and Sibo Kang and Guoqin Chen and Bo Zhong",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd and Techna Group S.r.l.",

year = "2023",

month = jun,

day = "1",

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TY - JOUR

T1 - Facile fabrication of Co-MOF/GNs derivatives as electromagnetic wave absorber with thin thickness for X and Ku bands

AU - Ma, Yuanyuan

AU - Jiang, Yuanhao

AU - Qian, Jinrui

AU - Wang, Chunyu

AU - Kang, Sibo

AU - Chen, Guoqin

AU - Zhong, Bo

PY - 2023/6/1

Y1 - 2023/6/1

N2 - The application of carbon matrix and magnetic composites as electromagnetic wave absorbing materials has attracted extensive attention. The Co-MOF/Graphite nanoflakes (GNs) derived microwave absorbing material supported by MOF structure was acquired via hydrothermal method and subsequent calcination treatment. The best reflection loss value of the sample obtained by pyrolysis at 600 °C is −43.62 dB at 15.84 GHz, simultaneously, the thickness is only 1.6 mm, and the effective absorption bandwidth (EAB) can reach 5.2 GHz (12.8–18 GHz). The Co-MOF/GNs derivatives possess a thinner absorbent thickness and a rather wide EAB value (mainly distributed in the X and Ku bands). Its absorbing bandwidth and thickness of absorbing agent are far superior to most MOF-derived absorbing materials. Its excellent electromagnetic wave absorption performance is chiefly attributed to multi-component dipole polarization, interface polarization from multiple interfaces, and multiple reflection and scattering effects of sandwich micro-structure with high porosity on electromagnetic waves. This paper provides a certain reference value for the design of lightweight and efficient radar absorbers suitable for X and KU bands, which can be applied to radar absorbing materials, multi-band and various applications.

AB - The application of carbon matrix and magnetic composites as electromagnetic wave absorbing materials has attracted extensive attention. The Co-MOF/Graphite nanoflakes (GNs) derived microwave absorbing material supported by MOF structure was acquired via hydrothermal method and subsequent calcination treatment. The best reflection loss value of the sample obtained by pyrolysis at 600 °C is −43.62 dB at 15.84 GHz, simultaneously, the thickness is only 1.6 mm, and the effective absorption bandwidth (EAB) can reach 5.2 GHz (12.8–18 GHz). The Co-MOF/GNs derivatives possess a thinner absorbent thickness and a rather wide EAB value (mainly distributed in the X and Ku bands). Its absorbing bandwidth and thickness of absorbing agent are far superior to most MOF-derived absorbing materials. Its excellent electromagnetic wave absorption performance is chiefly attributed to multi-component dipole polarization, interface polarization from multiple interfaces, and multiple reflection and scattering effects of sandwich micro-structure with high porosity on electromagnetic waves. This paper provides a certain reference value for the design of lightweight and efficient radar absorbers suitable for X and KU bands, which can be applied to radar absorbing materials, multi-band and various applications.

KW - Cobalt

KW - GNs

KW - Metal-organic frameworks

KW - Microwave absorption performance

UR - https://www.scopus.com/pages/publications/85150831671

U2 - 10.1016/j.ceramint.2023.02.253

DO - 10.1016/j.ceramint.2023.02.253

M3 - 文章

AN - SCOPUS:85150831671

SN - 0272-8842

VL - 49

SP - 18745

EP - 18755

JO - Ceramics International

JF - Ceramics International

IS - 11

ER -

Facile fabrication of Co-MOF/GNs derivatives as electromagnetic wave absorber with thin thickness for X and Ku bands

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Keywords

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