Citation: LI Guo-Min, ZHU Bao-Shun, LIANG Li-Ping, TIAN Yu-Ming, LÜ Bao-Liang, WANG Lian-Cheng. Core-Shell Co₃Fe₇@C Composite as Efficient Microwave Absorbent[J]. Acta Physico-Chimica Sinica, ;2017, 33(8): 1715-1720. doi: 10.3866/PKU.WHXB201704174 shu

Core-Shell Co₃Fe₇@C Composite as Efficient Microwave Absorbent

1.
School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, P. R. China;
2.
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China

Received Date: 6 December 2016
Revised Date: 3 April 2017

Fund Project: The project was supported by the Doctoral Scientific Research Foundation of Taiyuan University of Science and Technology, China (20152030).

To reduce the density of the absorbent Co₃Fe₇, a core-shell Co₃Fe₇@C microwave absorbent was synthesized by preparing an iron/cobalt-containing carbon precursor followed by high-temperature carbonization. According to the X-ray diffraction (XRD) and transmission electron microscopy (TEM) results, Co₃Fe₇ particles were coated with graphitized carbon layers to form a core-shell structure. Furthermore, the Co₃Fe₇@C composite with a surface area and density of 358.5 m²·g^-1 and 2.25 g·cm^-3, respectively, exhibited excellent microwave absorbability. A minimum reflection loss (RL) of -43.5 dB and an effective bandwidth (RL below -10 dB) of 4.1 GHz were obtained at the coating thickness of 2 mm, which could be mainly attributed to the effective impedance match and multiple interfacial polarizations. Owing to the low density and remarkable microwave absorption, we believe that the Co₃Fe₇@C composite can be a promising candidate for use as a lightweight and efficient microwave absorbent.
- Core-shell structure,
- Composite,
- Lightweight,
- Microwave absorption
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
30. [30]
31. [31]
32. [32]
33. [33]
34. [34]
35. [35]
1. [1]
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2. [2]
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3. [3]
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10. [10]
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11. [11]
  Liangsen Zhu , Caiyun Cui , Tao Jing , Shihao Tan , Xianguo Liu , Menglin Yu . Strong and broadband microwave absorption under thin thickness induced by multiple dielectric relaxation and multiple magnetic resonances through the dual nanocrystalline phases in amorphous FeSiBCr flakes. Acta Physico-Chimica Sinica, 2026, 42(9): 100331-0. doi: 10.1016/j.actphy.2026.100331
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Core-Shell Co₃Fe₇@C Composite as Efficient Microwave Absorbent