Citation: Chang-An Xu, Yue Yu, Yuanming Tan, Shuxi Gao, Hao Pang. Reduced graphene oxide/Fe₃O₄ composite material integrated with electromagnetic wave absorption, thermal conductivity and corrosion resistance[J]. Chinese Chemical Letters, ;2026, 37(7): 112118. doi: 10.1016/j.cclet.2025.112118 shu

Reduced graphene oxide/Fe₃O₄ composite material integrated with electromagnetic wave absorption, thermal conductivity and corrosion resistance

Chang-An Xu ^{, *,} ,
Yue Yu ,
Yuanming Tan ,
Shuxi Gao ,
Hao Pang ^{, *,}

Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou 510665, China

xuchangan@gdcri.com

panghao@gdcri.com

Received Date: 22 October 2025
Revised Date: 12 November 2025
Accepted Date: 13 November 2025
Available Online: 15 November 2025

Figures(4)

At present, electromagnetic wave absorbing materials provide an effective solution to the electromagnetic pollution generated by electronic devices. However, materials with a single function can no longer meet practical requirements. Therefore, reduced graphene oxide/Fe₃O₄ composites were prepared via a combined process involving sol-gel, click chemistry reaction (thiol-ene reaction), and reduction. The results demonstrated that Fe₃O₄ was covalently grafted onto graphene oxide (GO), which significantly influenced the morphology, electrical conductivity, and electromagnetic wave absorption performance of the composite. When the mass ratio of GO to modified Fe₃O₄ was 1:1, the composite G₂-Fe exhibited optimal impedance matching and the best electromagnetic wave absorption performance. The minimum reflection loss (RL_min) reached -42.0 dB at 4.91 GHz. When the thickness was 2.0 mm, the maximum effective absorption bandwidth (RL < -10 dB) was 4.85 GHz. Moreover, the composite also displayed excellent thermal conductivity and corrosion resistance. The thermal conductivity of the composite material was maintained above 1.486 W m^-1 K^-1. In a 3.5 wt% saline solution, the composite showed a low corrosion current (3.07 × 10^–5 A) and a high corrosion potential (-0.110 V). This study not only achieved structural regulation of the composite through covalent grafting of modified Fe₃O₄ on GO, but also offered valuable insights for the design of multifunctional materials integrating electromagnetic wave absorption, thermal conduction, and corrosion resistance properties.
- Graphene oxide,
- Fe₃O₄,
- Electromagnetic wave,
- Thermal conductivity,
- Corrosion resistance
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通讯作者: 陈斌, bchen63@163.com

Reduced graphene oxide/Fe₃O₄ composite material integrated with electromagnetic wave absorption, thermal conductivity and corrosion resistance