Development of Microwave Absorbing Materials Based on Graphene

doi:10.15541/jim20180178

Abstract

Abstract:

Nowadays, electromagnetic interference receives great attention for wireless communication and charging, electronic device, and modern weapons. Materials and the various novelty structures are required and designed to absorb the emitted electromagnetic wave energy and to minimize reflection of the electromagnetic wave in certain direction. Development of graphene-based electromagnetic absorption materials are reviewed, consisting of composition materials with other carbon materials, nano-metal materials, ferrite materials, polymer materials, and non-metallic materials. The electromagnetic absorption mechanisms is briefly described and the influences of microstructure, fraction and loss mechanism on the absorption properties are discussed. The future of graphene-based electromagnetic absorption materials is also prospected.

Key words: graphene, electromagnetic wave absorbing materials, absorption property, review

CLC Number:

TB34

KANG Yue, YUAN Bo, MA Tian, CHU Zeng-Yong, ZHANG Zheng-Jun. Development of Microwave Absorbing Materials Based on Graphene[J]. Journal of Inorganic Materials, 2018, 33(12): 1259-1273.

Figures/Tables 6

Fig. 1 Schematic of electromagnetic loss materials based on different types and structures of grapheme

Fig. 2 Complex permittivity and reflection loss curves of rGO(a) Reflection loss curves of rGO[30]; (b) Schematic illustration of MA mechanism of Gmfs[31]; (c-d) Frequency dependence of relative complex permittivity real part (ε°) (c) and imaginary part (ε’’) (d) of graphite and rGO[30]; (e-f) Real parts (e) and imaginary parts (f) of permittivity of Gmfs/paraffin composites with different filler contents[31]

Fig. 3 Complex permittivity and reflection loss curves of rGO/NBR composites(A) Real part of permittivity (ε°)[38]; (B) Imaginary part of permittivity (ε’)[38]; (C) A possible absorption mechanism; (D-E) Reflection loss characteristics with thickness: (D) 3 mm and (E) 4 mm for rGO/NBR composites[38] (a) 2wt% rGO; (b) 4wt% rGO; (c) 10wt% rGO

Fig. 4 Typical microstructures of metal nanomaterials for graphene composites(a) ZnO spheres[55]; (b) T-ZnO[56]; (c) Starlike-ZnO[57]; (d) CoS2 spheres and reflection loss curves[63]

Fig. 5 Schematic of relationship between maximum reflectivity and thickness of graphene based electromagnetic wave loss material(a) rGO; (b) Two ingredients; (c) Three or more ingredients; (d) Three-dimensional structure

Table 1 Comparison of EMW absorption properties of the materials based on graphene

Filler	Matrix	Reflection Loss/dB	Optimum thickness/mm	Effective bandwidth in 2-18 GHz/GHz	Ref.
rGO	Paraffin	-7.0	2.0	-	[30]
rGO	PEO	-38.8	1.8	4.10	[39]
Pitch carbon coating grapheme/carbon nanotubes	Paraffin	-18.9	2.0	~4.0	[41]
rGO/ polyaniline	Paraffin	-25.0	2.0	4.0	[131]
rGO-BN	Paraffin	-40.5	1.6	5.0	[108]
α-cubic Co/GN	Paraffin	-47.5	2.0	5.3	[48]
Fe₃O₄/N-graphene	Paraffin	-53.6	1.8	5.0	[79]
Tetrapod-like ZnO/ rGO	Paraffin	-59.5	2.9	6.9	[56]
MCI/rGO/PVP	Paraffin	-41.7	2.8	12.52	[128]
rGO/CoFe₂O₄/MWCNT	Paraffin	-46.8	1.6	3.44	[123]
Gr/Ti@CNT/Fe₃O₄/PANI	TPU	-63.57	3.0	4.20	[118]
Yolk-shell CoO@Co NPs/ZnO NPs/graphene	Paraffin	-51.1	2.6	4.70	[157]
rGO foams	-	-33.2	1.0	~14.00	[158]
3D-rGO/silica textile/PF	-	-36.0	3.3	4.20	[160]
Porous graphene microflowers	Paraffin	-42.8	2.0	5.59	[31]

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