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Article
Materials Science, Multidisciplinary
Jing Xu et al.
Summary: In this study, nitrogen-doped reduced graphene oxide/hollow cobalt ferrite composite aerogels were synthesized by a solvothermal and hydrothermal method. The as-fabricated composite aerogels exhibited ultralow density, a unique 3D network structure, and superior electromagnetic absorption capacity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yufeng Bai et al.
Summary: A microwave absorbing composite material with good thermal conductivity has been prepared to solve the problem of electromagnetic wave pollution in high-power density electronic equipment without increasing the heat load of the equipment.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Juhua Luo et al.
Summary: A series of reduced graphene oxide (RGO) supported symmetrical lotus-like cobalt/manganese oxide/porous carbon (Co/MnO/PC/RGO) composites were synthesized, which exhibited excellent electromagnetic wave absorbing capacity with wide effective absorption bandwidth (EAB).
Article
Chemistry, Physical
Meng Yu et al.
Summary: In this study, MXene/polyaniline (PANI) composites with heterogeneous interfaces were prepared by electrostatic self-assembly process. By adjusting the content of PANI, the composites exhibited improved impedance matching and reflection loss. The introduction of PANI also resulted in a three-dimensional structure, increasing the electromagnetic wave propagation path and providing effective attenuation mechanisms.
Article
Chemistry, Physical
Ruiwen Shu et al.
Summary: In this study, a ternary composite aerogel of nitrogen-doped reduced graphene oxide/nickel ferrite@silicon dioxide modified by amino groups (NRGO/NiFe2O4@m-SiO2) was successfully synthesized. The resulting composite aerogels exhibited a special three-dimensional porous network architecture. Coating SiO2 and modifying amino groups on the surfaces of SiO2 significantly enhanced the electromagnetic absorbing capacity of NRGO/NiFe2O4 composite aerogel. The as-fabricated NRGO/NiFe2O4@m-SiO2 composite aerogel showed a broadband effective absorption bandwidth of 7.04 GHz (10.96-18.0 GHz) and robust absorbing intensity of -30.8 dB at 2.1 mm under a small filling ratio of 12.5 wt%.
Article
Chemistry, Physical
Feng Dong et al.
Summary: The design of heterostructures with reasonable chemical composition and spatial structure is an effective strategy for achieving high performance electromagnetic wave absorption. In this study, reduced graphene oxide (rGO) nanosheets decorated with hollow core-shell Fe3O4@PPy (FP) microspheres were prepared using a combination of hydrothermal method, in situ polymerization method, directional freeze-drying, and hydrazine vapor reduction. The FP acts as traps that consume the trapped electromagnetic waves through magnetic and dielectric losses, while the rGO nanosheets form a conductive network that serves as multi-reflected layers. Additionally, the impedance matching is optimized through the synergistic effect between FP and rGO. The Fe3O4@PPy/rGO (FPG) composite exhibits excellent electromagnetic wave absorption performances due to the synergistic effect of conductive loss, dielectric loss, magnetic loss, multiple reflection loss, and optimized impedance matching. This work provides a simple and effective strategy for fabricating lightweight, thin, and high-performance electromagnetic wave absorbing materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yixuan Han et al.
Summary: This study successfully synthesized a magnetic microwave absorbing material (MAMs) using a hydrothermal method, and its composition and morphology were controlled by adjusting the atomic ratio. The MAMs showed enhanced microwave absorption in the C band, making it a potential solution for electromagnetic pollution in this frequency range.
Review
Multidisciplinary Sciences
Yongqiang Guo et al.
Summary: Polymer composites have important applications in electronics, but in the 5G era, issues such as heat accumulation and electromagnetic wave radiation have become more prominent. Therefore, designing thermal conduction and EMW absorption integrated polymer composites is crucial for solving these problems and adapting to the development trend of electronics. This review summarizes the latest research progress, factors affecting performance, and mechanisms of these composites, as well as discusses limitations and potential solutions for their development.
Article
Chemistry, Physical
Bo Jiang et al.
Summary: In this study, novel bamboo-like carbon nanotubes wrapped with controllable-sized Co magnetic nanoparticles were successfully prepared. The electromagnetic wave absorbing properties of the material were effectively tuned by adjusting filler loading, calcination temperature, and template usage. The optimized Co@CNT exhibited superior absorption performance and improved stability through hydrophobic modification.
Article
Chemistry, Physical
Longqi Yang et al.
Summary: In order to solve the problem of electromagnetic pollution, we have successfully synthesized a multi-dimensional graphene-based aerogel decorated with one-dimensional carbon nanotubes and metal-organic framework derivatives. The composite material exhibits excellent microwave absorption properties due to its multi-dimensional gradient, defects, heterogeneous interfaces, and unique porous structure. The optimum absorption performance of -58.8 dB is achieved with a filler loading of 20 wt%, a thickness of 1.8 mm, and an effective absorption bandwidth of 7.6 GHz, covering the entire Ku-band.
Article
Chemistry, Physical
Ruiwen Shu et al.
Summary: In this study, a nitrogen-doped reduced graphene oxide/multi-walled carbon nanotubes/hollow nickel ferrite ternary magnetic composite aerogel with ultralow bulk density was successfully synthesized. The synthesized binary and ternary magnetic composite aerogels exhibited a unique three-dimensional hierarchical porous network structure. The ternary composite aerogel showed significantly enhanced electromagnetic wave absorption performance compared to the binary composite aerogels. Remarkably, the ternary composite aerogel achieved a maximum absorption bandwidth of 6.7 GHz and a robust absorbing intensity of -42.8 dB at a thin matching thickness of 2.0 mm and a low loading ratio of 12.5 wt%. The impedance matching was optimized by the special hierarchical porous network structure and magnetodielectric synergy, resulting in the notable enhancement of the electromagnetic wave absorbing capacity. Therefore, this work is of great importance for the development of graphene-based hybrid nanocomposites as advanced electromagnetic wave absorbers.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Fu Chen et al.
Summary: This study successfully prepared 2D Ti3CNTx-based magnetic composites by modifying Ti3CNTx nanomaterials and combining them with magnetic materials, achieving broadband microwave absorption. The microwave absorption properties of the composites were investigated by varying the volume ratio of the nanomaterials and the filling ratio of the absorber. With a thickness of 1.32 mm, the absorber achieved a bandwidth of 4.75 GHz. Integrated with a macroscale multilayer periodic gradient design, the metastructure based on FCM (Fe@NC/Ti3CNTx) composites achieved broadband microwave absorption with an EAB of 12.5 GHz ranging from 5.5 GHz to 18 GHz at a total thickness of 4.5 mm. The microwave attenuation mechanisms were studied through dielectric loss, magnetic loss, and impedance matching. The multi-scale development of MXene-based magnetic composites enables their potential application in broadband microwave absorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hang Zhao et al.
Summary: A three-dimensional porous ZnFe2O4/reduced graphene oxide (ZFO/rGO) composite aerogel was synthesized by a hydrothermal reduction method combined with freeze-drying technique. The dispersed ZFO nanoparticles (NPs) are bonded to the defect-rich 3D conductive rGO skeleton, resulting in enhanced conduction loss. The defect-rich ZFO/rGO composite aerogel exhibits outstanding electromagnetic wave absorption properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yuhan Wu et al.
Summary: Heterogeneous interface engineering plays a crucial role in the structural design of electromagnetic absorbers. By controlling the interface through structural design, the electromagnetic wave absorption performance can be optimized. In this study, 3D hierarchical structure composites composed of reduced graphite oxide (rGO) and hollow raspberry Fe3O4 nanoparticles were successfully fabricated. The unique structure and tunable components of the composites significantly enhance the electromagnetic absorption performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Hongxia Zhang et al.
Summary: A three-dimensional nitrogen-doped porous carbon decorated with core-shell Ni3Sn2@carbon particles (3D N-PC/Ni3Sn2@C) was synthesized through a salt-template pyrolysis approach. The composite exhibits excellent electrical conductivity, stability, lightweight, corrosion resistance, oxidation resistance, and superior stability of electromagnetic wave absorbers. The minimum reflection loss and wide effective absorption bandwidth under a low filler content make it a promising candidate for electromagnetic wave absorption applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Multidisciplinary Sciences
Chaobo Liang et al.
Summary: The rapid development of mobile devices has brought significant improvements to people's lives, but it has also given rise to issues such as electromagnetic interference (EMI) and information security. This article focuses on the urgent need to develop high-performance EMI shielding materials to suppress electromagnetic radiation and prevent information leakage. It summarizes the research progress on the preparation of polymer matrix EMI shielding composites through external field induction, and proposes key scientific problems that need to be solved.
Article
Chemistry, Physical
Juhua Luo et al.
Summary: This study developed a novel nitrogen doped carbon (NDC)/MoS2 composite with wide bandwidth, strong absorption, and light weight. By adjusting the mass ratio of NDC to MoS2, the optimized EMWA performance can be achieved. These findings provide new design ideas for the future development of high-performance and wideband EMWA materials.
Article
Chemistry, Physical
Baohua Liu et al.
Summary: In this study, nitrogen-doped reduced graphene oxide/hollow copper ferrite composite aerogels with a unique 3D hierarchical porous network structure were successfully fabricated. The electromagnetic absorption performance of the composite aerogels could be improved by adjusting the calcination temperature. The optimized composite aerogel exhibited excellent electromagnetic wave absorption properties, making it a potential candidate for practical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Xuewei Su et al.
Summary: This paper reviews the research background and mechanism of PANI-based microwave absorption materials, and introduces the research progress of PANI/carbon composites, PANI/ferrite composites, PANI/natural composites and multicomponent PANI-based composites. The challenges and prospects for the development of PANI-based composites in microwave absorption are presented, and the directions and priorities for future research are pointed out.
Editorial Material
Multidisciplinary Sciences
Yali Zhang et al.
Article
Chemistry, Multidisciplinary
Yunfei Yang et al.
Summary: This study develops a high-performance biomimetic hydrogel through a simple method. By integrating ordered porous structure, highly conductive material, and water, the hydrogel exhibits excellent electromagnetic interference shielding effectiveness. The addition of silver nanowires further enhances the shielding performance. The hydrogel also demonstrates the capability for human motion detection and smart coding.
Article
Engineering, Environmental
Junfeng Qiu et al.
Summary: In this study, water-soluble nitrogen-doped carbon quantum dots (N-CQDs) were synthesized and combined with graphene aerogels to form N-CQDs/rGO composites. These composites exhibited excellent microwave absorption performance and selective adsorption ability for organic dyes in wastewater.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Manufacturing
Ruiwen Shu et al.
Summary: Reduced graphene oxide/zinc oxide (RGO/ZnO) composite aerogels were synthesized through a one-pot hydrothermal route, and exhibited low density, porous network structure, and excellent electromagnetic absorption, flame retardancy, and compression resilience properties.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Nanoscience & Nanotechnology
Zhihui Zeng et al.
Summary: Ultrathin, lightweight, and flexible aligned single-walled carbon nanotube films with metal-like thermal conductivity, excellent mechanical strength, and outstanding electromagnetic interference (EMI) shielding ability have been successfully fabricated through a scalable printing method.
NANO-MICRO LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Di Lan et al.
Summary: Silicates with double shell hollow sphere morphology were prepared using ultra-high temperature calcination and hydrothermal methods, and applied in electromagnetic wave absorption. The iron-based silicate materials showed excellent electromagnetic wave absorption performance with a wide absorption bandwidth, making them promising for various applications in this field.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Ning Sun et al.
Summary: A 3D hierarchical NiCo2O4 nanoflowers/reduced graphene oxide (NiCo2O4/RGO) composite foam was successfully synthesized in this study, showing highly efficient electromagnetic wave absorption performance with low reflection loss at thin thickness and broad frequency bandwidth coverage.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Hui Luo et al.
Summary: In this study, bimetallic oxalate rod-derived NiFe/Fe3O4@carbon rods composites were successfully structured as MAMs, showing excellent microwave absorption properties. The high-performance of the composites was mainly attributed to the synergistic effects of impedance matching, magnetic loss, and electrical loss.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Lei Wang et al.
Summary: Efficient modulation of surface magnetic configurations and electromagnetic responses can be achieved by controlling the growth of magnetic materials. The in situ orientation growth strategy developed here for Fe3O4-Fe3O4@C heterojunctions has demonstrated excellent energy conversion capacity towards electromagnetic waves. The magnetic-dielectric microspheres exhibit strong reflection loss and ultra-wide absorption region, contributing to the understanding of energy conversion mechanisms.
Article
Engineering, Multidisciplinary
Yue Zhou et al.
Summary: Graphene composite aerogels exhibit excellent microwave absorption properties and are a versatile material. By utilizing various dielectric and conductive mechanisms, the material's microwave absorption performance is enhanced. The material not only has outstanding absorption properties, but also performs well in terms of mechanical properties and heat resistance.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Physical
Ruiwen Shu et al.
Summary: A hybrid composite of NRGO/MgFe2O4 was successfully fabricated through a two-step method, showing enhanced electromagnetic absorption capacity. The composite exhibited excellent performance with a minimum reflection loss of -48.0 dB at 5.2 GHz and a maximum absorption bandwidth of 4.8 GHz under low filler loading and small matching thickness, making it a promising candidate for efficient electromagnetic absorbers.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xiangyu Wang et al.
Summary: The study presents a CFO/N-rGA composite material with a super-broad microwave absorption bandwidth and low reflection loss. The high-efficiency microwave absorption of the composite material is attributed to enhanced polarization relaxation, specific design of the conductive network, and superior impedance matching.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Xinci Zhang et al.
Summary: By utilizing the multifunctional material CoFe@N-CNT/rGO, excellent performance in rechargeable Zn-air battery and electromagnetic wave absorption can be achieved.
Article
Engineering, Multidisciplinary
Shan Gao et al.
Summary: The CoNi alloy embedded in NC nanosheets with tunable magnetism showed extraordinary wave attenuation capacity and effective absorption bandwidth, offering a promising direction for synthesizing dielectric-magnetic composites with excellent microwave absorption properties.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Composites
Xiaoxiao Zhao et al.
Summary: The ternary composite material ZnFe2O4@PANI-rGO, with a core-shell structure and excellent electromagnetic absorption properties, was prepared by covalently modifying reducing graphene oxide with the binary magnetic material ZnFe2O4@PANI. The introduction of covalent bonds acts as a bridge connecting magnetic materials and dielectric materials, enhancing reflection loss and improving electromagnetic absorbing performance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Rakesh Manna et al.
Summary: By optimizing the FG/Ni ratio, the synthesized FG/Ni/PANI ternary composites exhibit enhanced electromagnetic interference shielding efficiency, with good absorption performance for electromagnetic waves in the 2-8GHz range, showing great potential for applications.
Article
Chemistry, Multidisciplinary
Yi Ding et al.
Summary: MoS2/rGO nanocomposites were prepared as enhanced electromagnetic wave absorbers using ultrasonic dispersion, modulating the electromagnetic parameters to achieve better absorption performance. By adjusting the filler loadings, significant reflection loss and absorption bandwidth can be obtained. The enhanced absorption mechanism mainly comes from dielectric loss and conductive loss, with interfacial polarization relaxation playing a key role.
MATERIALS CHEMISTRY FRONTIERS
(2021)
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Xiangyu Wang et al.
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(2020)
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P. Heidari et al.
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(2020)
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Jing Yan et al.
ACS APPLIED MATERIALS & INTERFACES
(2019)
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Hai-Bo Zhao et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
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Yehong Cheng et al.
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Nassim Nasser Ali et al.
MATERIALS CHEMISTRY AND PHYSICS
(2018)
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Yubo Zou et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
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Kunal Manna et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2017)
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Nanoscience & Nanotechnology
Chunhua Tian et al.
ACS APPLIED MATERIALS & INTERFACES
(2015)
