Topological designed Fe3O4@C/rGO gradient architecture with enhanced microwave absorption

Zihao Chen; Miao Li; Xiaoxiao Huang; Yewei Zhang; Yu Zhang; Bin Yang; Guanghui Cui; Tao Zhang; Xiaobo Gong

doi:10.1016/j.nxmate.2024.100376

Topological designed Fe₃O₄@C/rGO gradient architecture with enhanced microwave absorption

Zihao Chen
, Miao Li
, Xiaoxiao Huang
, Yewei Zhang
, Yu Zhang
, Bin Yang
, Guanghui Cui
, Tao Zhang^*
, Xiaobo Gong

^*Corresponding author for this work

School of Materials Science and Engineering, Harbin Institute of Technology Weihai
Harbin Institute of Technology
School of Ocean Engineering, Harbin Institute of Technology Weihai

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

3 Scopus citations

Abstract

Microstructure and composition are critical strategies to obtain high-performance electromagnetic wave (EMW) absorbing materials. In this study, Fe₃O₄@C and Fe₃O₄@C/rGO were synthesized by the hydrothermal method. Subsequently, a gradient structure was designed to further optimize the EMW absorption performance of composition using CST software. The electromagnetic parameters of the EMW absorbing materials were utilized to design the gradient structure by employing a genetic algorithm to determine the optimal thickness. The results indicate that the gradient structure of Fe₃O₄@C and Fe₃O₄@C/rGO demonstrate exceptional EMW absorption performance with the minimum reflection loss (RL_min) of −50.26 dB at 9.73 GHz and the effective absorption bandwidth (EAB) of 3.86 GHz (2.04 GHz-2.85 GHz, 8.57 GHz-11.62 GHz). Finally, the proposed system was validated using the waveguide method, revealing that the experimental curves align closely with simulated curves, thereby confirming the feasibility of this structure.

Original language	English
Article number	100376
Journal	Next Materials
Volume	7
DOIs	https://doi.org/10.1016/j.nxmate.2024.100376
State	Published - Apr 2025
Externally published	Yes

Keywords

CST simulation
Core-shell structure
Fe3O4@C/rGO
Gradient structure

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10.1016/j.nxmate.2024.100376

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@article{d9e3d454096945a398eb801711df5c88,

title = "Topological designed Fe3O4@C/rGO gradient architecture with enhanced microwave absorption",

abstract = "Microstructure and composition are critical strategies to obtain high-performance electromagnetic wave (EMW) absorbing materials. In this study, Fe3O4@C and Fe3O4@C/rGO were synthesized by the hydrothermal method. Subsequently, a gradient structure was designed to further optimize the EMW absorption performance of composition using CST software. The electromagnetic parameters of the EMW absorbing materials were utilized to design the gradient structure by employing a genetic algorithm to determine the optimal thickness. The results indicate that the gradient structure of Fe3O4@C and Fe3O4@C/rGO demonstrate exceptional EMW absorption performance with the minimum reflection loss (RLmin) of −50.26 dB at 9.73 GHz and the effective absorption bandwidth (EAB) of 3.86 GHz (2.04 GHz-2.85 GHz, 8.57 GHz-11.62 GHz). Finally, the proposed system was validated using the waveguide method, revealing that the experimental curves align closely with simulated curves, thereby confirming the feasibility of this structure.",

keywords = "CST simulation, Core-shell structure, Fe3O4@C/rGO, Gradient structure",

author = "Zihao Chen and Miao Li and Xiaoxiao Huang and Yewei Zhang and Yu Zhang and Bin Yang and Guanghui Cui and Tao Zhang and Xiaobo Gong",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2025",

month = apr,

doi = "10.1016/j.nxmate.2024.100376",

language = "英语",

volume = "7",

journal = "Next Materials",

issn = "2949-8228",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Topological designed Fe3O4@C/rGO gradient architecture with enhanced microwave absorption

AU - Chen, Zihao

AU - Li, Miao

AU - Huang, Xiaoxiao

AU - Zhang, Yewei

AU - Zhang, Yu

AU - Yang, Bin

AU - Cui, Guanghui

AU - Zhang, Tao

AU - Gong, Xiaobo

PY - 2025/4

Y1 - 2025/4

N2 - Microstructure and composition are critical strategies to obtain high-performance electromagnetic wave (EMW) absorbing materials. In this study, Fe3O4@C and Fe3O4@C/rGO were synthesized by the hydrothermal method. Subsequently, a gradient structure was designed to further optimize the EMW absorption performance of composition using CST software. The electromagnetic parameters of the EMW absorbing materials were utilized to design the gradient structure by employing a genetic algorithm to determine the optimal thickness. The results indicate that the gradient structure of Fe3O4@C and Fe3O4@C/rGO demonstrate exceptional EMW absorption performance with the minimum reflection loss (RLmin) of −50.26 dB at 9.73 GHz and the effective absorption bandwidth (EAB) of 3.86 GHz (2.04 GHz-2.85 GHz, 8.57 GHz-11.62 GHz). Finally, the proposed system was validated using the waveguide method, revealing that the experimental curves align closely with simulated curves, thereby confirming the feasibility of this structure.

AB - Microstructure and composition are critical strategies to obtain high-performance electromagnetic wave (EMW) absorbing materials. In this study, Fe3O4@C and Fe3O4@C/rGO were synthesized by the hydrothermal method. Subsequently, a gradient structure was designed to further optimize the EMW absorption performance of composition using CST software. The electromagnetic parameters of the EMW absorbing materials were utilized to design the gradient structure by employing a genetic algorithm to determine the optimal thickness. The results indicate that the gradient structure of Fe3O4@C and Fe3O4@C/rGO demonstrate exceptional EMW absorption performance with the minimum reflection loss (RLmin) of −50.26 dB at 9.73 GHz and the effective absorption bandwidth (EAB) of 3.86 GHz (2.04 GHz-2.85 GHz, 8.57 GHz-11.62 GHz). Finally, the proposed system was validated using the waveguide method, revealing that the experimental curves align closely with simulated curves, thereby confirming the feasibility of this structure.

KW - CST simulation

KW - Core-shell structure

KW - Fe3O4@C/rGO

KW - Gradient structure

UR - https://www.scopus.com/pages/publications/85204439410

U2 - 10.1016/j.nxmate.2024.100376

DO - 10.1016/j.nxmate.2024.100376

M3 - 文章

AN - SCOPUS:85204439410

SN - 2949-8228

VL - 7

JO - Next Materials

JF - Next Materials

M1 - 100376

ER -

Topological designed Fe₃O₄@C/rGO gradient architecture with enhanced microwave absorption

Abstract

Keywords

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