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Article
Chemistry, Physical
Shuo Zhang et al.
Summary: This study presents a novel composite preparation strategy to design dendritic nanofibers based on MXene nanosheets as the dendritic matrix and embedded magnetic nanoparticles. The multidimensional nanocomposites exhibit excellent conduction loss, magnetic loss, and polarization loss capabilities, and the impedance matching and loss mechanisms are improved through optimizing the structure and components. The nanocomposites show outstanding electromagnetic wave absorption performance with a wide effective absorption bandwidth.
Article
Nanoscience & Nanotechnology
Chenxi Wang et al.
Summary: In this study, a one-dimensional N-doped carbon nanofibers material encapsulating hollow Co3SnC0.7 nanocubes was successfully synthesized using electrospinning. The resulting fibers exhibited excellent microwave absorption properties due to the space charge stacking effect and impedance matching between Co3SnC0.7 and carbon network. The strategies for regulating electromagnetic performance in this study can be further extended to develop emerging absorbers using other electromagnetic functional materials.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Tianming Jia et al.
Summary: Taking full advantage of interface engineering to strengthen interface polarization is an effective strategy to improve microwave absorption. Constructing mixed-dimensional heterostructures and/or three-dimensional interconnected network structures can create abundant interfaces for enhanced interfacial effect. The mixed-dimensional CF/CNTs@Fe3C@Fe3O4 samples with different contents of CNTs exhibited excellent comprehensive electromagnetic wave absorption performances including strong absorption capabilities, broad absorption bandwidths, thin matching thicknesses, and low densities. Increasing the content of CNTs greatly enhanced their conduction and polarization loss abilities, resulting in enhanced comprehensive electromagnetic wave absorption performances.
Article
Materials Science, Ceramics
Shengtao Gao et al.
Summary: Reasonable design and optimization of material properties are crucial for achieving excellent electromagnetic wave absorption capacities. In this study, residual carbon derived from coal gasification fine slag-loaded hollow-spherical Fe3O4 nanoparticles (Fe3O4 NPs@RC) was synthesized and its electromagnetic parameters and absorption performance were analyzed. It was found that the modified composition and microstructure of Fe3O4 NPs@RC resulted in improved absorption capacity, with the binary composite showing the minimum reflection loss and broad absorption bandwidth under a specific thickness and filler content. The study also proposed a possible electromagnetic wave absorption mechanism and provides an effective strategy for designing high-performance absorbers using coal gasification solid waste-based materials.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Peizhou Liu et al.
Summary: This study successfully fabricated hierarchical carbon fiber absorbers with multi-dimensional magnetic configurations using electrospinning technique and thermal reduction engineering. The abundant hetero-interfaces, multi-dimensional magnetic domains, and unique hierarchical structures contribute to efficient absorption of microwave radiation.
Review
Mechanics
Jinhu Hu et al.
Summary: With the wide application of wireless technology, the problem of EMW radiation and pollution in building space is becoming increasingly serious. Therefore, it is of great importance to design and prepare EMW absorbing cementitious materials. This review categorizes EMW absorbing cementitious materials into three groups based on their absorption mechanism and highlights the preparation, structure, and performance of cutting-edge materials. The effects and optimization mechanisms of EMW absorber on cementitious materials are comprehensively summarized, and the existing challenges and future research directions are also discussed.
COMPOSITE STRUCTURES
(2023)
Article
Chemistry, Physical
Guorui Yang et al.
Summary: In this study, one-dimensional macroporous carbon nanofibers with magnetic metal nanoparticles were successfully prepared and showed excellent electromagnetic wave absorption properties. The rational design of such materials provides new possibilities for the development of next-generation electromagnetic wave materials, and serves as an important research foundation for porous flexible electromagnetic wave absorption materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Bo Dai et al.
Summary: This study focuses on the fabrication of CuS/Fe3O4@polypyrrole (CuS/Fe3O4@PPy) flower-like composites through a combination of hydrothermal method, solvothermal method, and in-situ polymerization, aiming to mitigate the serious threats posed by electromagnetic radiation to equipment accuracy, military safety, and human health.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Junxiong Xiao et al.
Summary: In this study, MFe2O4 and MFe2O4 @MoS2 samples with different categories were elaborately designed and selectively produced. The investigation revealed that the large radius of M2+ cation effectively boosted the concentration of oxygen vacancy in the samples, improving the dielectric loss capabilities and microwave absorption performances. The introduction of MoS2 nanosheets enhanced the interfacial effect and polarization loss capabilities, further boosting the microwave absorption performances. The designed MFe2O4 @MoS2 samples displayed tunable and excellent comprehensive microwave absorption performances.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Qiqin Liang et al.
Summary: The authors designed and fabricated yolk-shell structured magnetic multicomponent nanocubes with optimized absorption performance. This study provides a new and effective approach for the development of strong wideband microwave absorbers.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(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.
Article
Chemistry, Physical
You Wu et al.
Summary: In this work, a strategy of efficient utilization of carbon nanotubes (CNTs) in producing CNT incorporated aramid papers is demonstrated. The layer-by-layer self-assembly technique is used to coat the surfaces of meta-aramid fibers and fibrils with CNT, providing novel raw materials available for large-scale papermaking. The hierarchical construction of CNT networks resolves the dilemma of increasing CNT content and avoiding the agglomeration of CNT, which is a frequent challenge for CNT incorporated polymeric composites. The composite paper exhibits a high permittivity and dielectric loss tangent at a low CNT loading, and achieves high-efficiency microwave absorption in the X-band.
Article
Materials Science, Multidisciplinary
Leiting Weng et al.
Summary: To develop an easy-to-use and highly efficient microwave absorbing material (MAM), a simple co-precipitation method was used to prepare a highly efficient MAM with porous carbon loaded hollow FeNi alloy particles. The resulting FeNi/C composites exhibit multi-band absorption performance and excellent electromagnetic wave attenuation capability by exploiting the structural properties of porosity and hollowness, while benefiting from good magnetic and dielectric loss properties. The sample HS FNC11 achieved the minimum reflection loss (RLmin) value of 49.90 dB at 14.48 GHz and an effective absorption bandwidth (EAB) of 7.23 GHz at a thickness of 1.5 mm, providing a new strategy for investigating efficient MAM.
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
Naixin Zhai et al.
Summary: The Co@nitrogen-doped carbon/Ni (Co@NC/Ni) nanocomposites were synthesized by hydrothermal and liquid-phase deposition methods, and then carbonized at different temperatures under N2 atmosphere. The tunable multicomponent synergistic loss mechanism and multiple heterogeneous interfaces of these composites make them efficient electromagnetic wave absorbing materials. The metallic components provide magnetic loss and improved impedance matching, while also acting as catalysts to induce the formation of graphitized carbon and enhancing conductive loss. In addition, more heterogeneous interfaces and defects were generated inside the sample, promoting dielectric loss. The Co@NC/Ni nanocomposite carbonized at 600 degrees C exhibited excellent electromagnetic wave absorbing performance, with a minimum reflection loss of -47.10 dB and an effective absorption bandwidth of 6.84 GHz at 2.5 mm with a filling ratio of 30%. This study provides a strategy of heterogeneous interface construction for future application of high-performance magnetic carbon-based electromagnetic wave absorbing materials.
Article
Chemistry, Physical
You Wu et al.
Summary: This study demonstrates an efficient strategy to produce CNT incorporated aramid papers by utilizing carbon nanotubes (CNTs) through layer-by-layer self-assembly technique. The hierarchical construction of CNT networks solves the challenge of increasing CNT content and preventing CNT agglomeration in polymeric composites. The composite paper with abundant heterogeneous interfaces and long-range conductive networks achieves high permittivity and dielectric loss tangent, and its complex permittivity is adjustable within a wide range at 10 GHz. Some papers with optimal thickness show high-efficiency microwave absorption with a reflection loss below -10 dB in the entire X-band.
Article
Chemistry, Physical
Leiting Weng et al.
Summary: In this study, carbon coated iron nickel nanoparticles were synthesized and their morphology, structural composition, and microwave-absorbing properties were analyzed. The results showed that the nanoparticles exhibited excellent impedance matching and microwave-absorbing performance due to their unique microscopic network structure. Through the analysis of loss mechanisms, it was found that the nanoparticles had high dielectric loss and magnetic loss characteristics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mingliang Ma et al.
Summary: In this study, N-doped carbon fibers embedded with CoNi alloy particles were synthesized, and conductive polypyrrole-coated CoNi/C fibers were prepared. The resulting composites showed outstanding electromagnetic wave absorption properties, attributed to the synergistic effect between CoNi, N-doped carbon fibers, and PPy. The study demonstrates the effectiveness of embedding magnetic alloy particles in carbon fibers coated with conductive polymers for constructing lightweight and efficient electromagnetic wave absorption materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Zijian Liao et al.
Summary: In this study, MgFe2O4/MgO/C fibers with MoS2 coating were successfully prepared, showing enhanced EM wave absorption performance. The optimal reflection loss and effective absorption bandwidth were -56.94 dB at 9.5 GHz and 3.9 GHz, respectively. The excellent MA performance was mainly attributed to the synergistic effect between MgFe2O4/MgO/C and MoS2.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Zhu Zhang et al.
Summary: In this study, high-performance electromagnetic wave absorption and shielding materials were developed by preparing interweaving cellulose/polyaniline nanofiber (CPF) composite through electrospinning technology and in-situ polymerization process. The CPF exhibited excellent EM absorption performance and EMI shielding capability, with adjustable electrical conductivity and lightweight fabric characteristics such as mechanical flexibility, breathability, and wash resistance, making it highly suitable for wearable devices.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Chen Li et al.
Summary: The study focuses on designing and fabricating high-efficient microwave absorbers using graphene oxide foam and reduced graphene oxide foam/MoS2 nanosheets. These samples exhibit ultralow density, excellent microwave absorption properties, and are ideal for improving MAs performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yongqian Shen et al.
Summary: This study presents the preparation of multifunctional microwave absorbers with robust hydrophobicity and enhanced wave absorption. By electrospinning and in-situ annealing method, carbon nanofibers (CNFs) inlaid with Ni/NiO and SiO2 nanoparticles were prepared. The results showed that at an annealing temperature of 550 °C, Ni/NiO/SiO2/CNFs achieved the optimal reflection loss (RL) at 16.6 GHz and had a large effective absorption bandwidth (EAB). The introduction of nano SiO2 into Ni/NiO/CNFs improved the complex permittivity and widened the EAB. Additionally, the prepared membranes exhibited robust hydrophobicity. These nanofibers hold promise for multifunction wave absorbers.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xiaojun Zeng et al.
Summary: In this study, a NiCo2O4 nanosheets-covered Ti3C2Tx MXene heterostructure is introduced as a high-performance EMW absorber with ultra-high reflection loss. The study explores the various loss mechanisms in the heterostructure and their synergistic effect on the EMW absorption performance.
Article
Chemistry, Physical
Chen Li et al.
Summary: In this paper, yolk-shell structured magnetic multicomponent nanocomposites (MCNCs) were produced and their outstanding electromagnetic wave absorption performances (EMWAPs) were demonstrated. The as-prepared materials exhibited excellent absorption capabilities, broad absorption bandwidth, and thin matching thicknesses due to the unique structures and the synergistic effect between dielectric and magnetic loss. Furthermore, the materials maintained their specific structure even after thermal and hydrothermal processes, and MCNCs with different MoS2 contents could be synthesized by controlling the hydrothermal temperature.
Article
Materials Science, Composites
Yuanchun Zhang et al.
Summary: In this study, a Ni@C octahedron composite was synthesized via a solvothermal reaction and annealing treatment, and it showed adjustable electromagnetic parameters and absorption properties.
COMPOSITES COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Bo Dai et al.
Summary: In this study, one-dimensional nanochains with adjustable thickness were successfully synthesized, and the importance of metal elements in adjusting impedance matching was discovered. The results showed that increasing the content of polyani-line can reduce the matching thickness, and the absorption intensity is determined by the synergistic effects of impedance matching, conduction loss, polarization loss, and magnetic loss.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Wenhuan Huang et al.
Summary: This study successfully synthesized a three-dimensional hierarchical core-shell nanofiber network with N-doped carbon core fibers and Co@C nanoparticles for enhanced polarization and magnetic loss. The nanofiber network showed excellent electromagnetic wave attenuation and impedance matching performance.
Article
Materials Science, Ceramics
Jie Liu et al.
Summary: In this study, SiCN/Fe/Ni ceramics codoped with iron acetylacetonate and nickle acetylacetonate were synthesized using the polymer-derived ceramics method. The microstructure, phase composition, and electromagnetic wave absorption properties were analyzed. The results showed that the materials had high polarization loss and conduction loss, leading to excellent electromagnetic wave absorption performance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Yafan Shi et al.
Summary: FeNi/NC composites were synthesized using carbonization strategy, and their electromagnetic wave absorbing (EMWA) performance was explored by modulating the components. The research found that FeNi/NC composites showed low reflection loss value and broad absorption bandwidth at specific mass ratio, and multiple loss mechanisms together contributed to the attenuation of electromagnetic waves.
Article
Engineering, Electrical & Electronic
Zhengchang Xia et al.
Summary: This study utilizes polyvinyl pyrrolidone-induced carbothermal reduction to convert NiFe2O4/Fe2O3/Ni composite spheres into FeNi/Fe/C-based composites. The results show that the reduction degree increases and then decreases with the increase in polyvinyl pyrrolidone dosage, leading to changes in composition and morphology. The as-synthesized FeNi/Fe/C-based composites exhibit strong dielectric loss and magnetic loss, making them potential materials for radar evasion and reducing electromagnetic pollution.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Junxiong Xiao et al.
Summary: This study reports a method to improve the microwave absorption properties (MAPs) by adjusting the defect level and interface effects of hollow carbon shells and hollow carbon@MoS2.
Editorial Material
Multidisciplinary Sciences
Yali Zhang et al.
Article
Chemistry, Physical
Guangguang Guan et al.
Summary: This study successfully fabricated FeNi@CNFs samples with excellent microwave absorption (MA) performance by utilizing the special hierarchical microstructure and the synergistic effect between small-sized magnetic FeNi NPs and lightweight dielectric CNFs. These samples exhibited the strongest absorption intensity and broadest effective frequency bandwidth at ultralow filler loading, surpassing many previously reported magnetic carbon-based hybrid absorbers.
Article
Chemistry, Physical
Yuxin Bi et al.
Summary: Electrospinning was used to synthesize one-dimensional MOF-derived C@Co/NC@PPy composite fibers with unique structural anisotropy and multiple absorption mechanisms. The composite fibers showed high EMW absorption performance, especially the C@Co/NC@PPy fibers with 35 wt% filler loading, which exhibited ultrawide absorption bandwidth and high performance with minimum reflection loss.
Article
Materials Science, Multidisciplinary
Jingjing Zhang et al.
Summary: In this work, flower-like multicomponent nanocomposites (MCNCs) with core@shell structured MSe2/FeSe2@MoSe2 (M = Co, Ni) were synthesized through a simple two-step hydrothermal reaction. With increasing the amounts of Mo and Se sources, the obtained MCNCs showed enhanced content of MoSe2 and improved flower-like geometry morphology. The as-prepared samples exhibited improved comprehensive microwave absorption properties (CMAPs) with increased amounts of Mo and Se sources.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Baoding Li et al.
Summary: Hollow core-shell ZnO/Fe3O4@C fibers were fabricated using a facile process, which exhibited excellent electromagnetic wave absorption performance with good impedance matching and a wide effective absorption bandwidth, thanks to the efficient design of multiple synergistical components and hollow fibrous structures.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Shuo Zhang et al.
Summary: A novel composite preparation strategy based on electrostatic spinning methods has been proposed in this study to design dendritic nanofibers using two-dimensional metal carbide or nitride materials (MXenes) as the matrix and embedded magnetic nanoparticles as magnetic loss units. The resulting multidimensional nanocomposites exhibit exceptional conduction loss, magnetic loss, and polarization loss capabilities due to interlaced carbon fiber networks, large-scale magnetically coupled networks, and multi-heterojunction interface structures. The composites achieve optimum reflection loss and a wide effective absorption bandwidth, making them potential lightweight and efficient electromagnetic wave protective fabric in harsh environments.
Article
Chemistry, Multidisciplinary
Bo Dai et al.
Summary: A ternary composite of Ni@polypyrrole/Ti3C2Tx has been successfully prepared, which combines the advantages of one-dimensional and two-dimensional materials for the development of electromagnetic wave absorbing materials. The ternary composites show excellent impedance matching with the effective combination of conductive loss, dielectric loss and magnetic loss. This study provides guidance for the design of MXene and conducting polymer matrix for electromagnetic wave absorbing materials.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Chen Han et al.
Summary: A carbon-modified nickel cobalt oxide porous nanofiber material was successfully constructed using electrospinning and in-situ hierarchical thermal treatment engineering, with the ability to tune microwave absorption in different frequency bands. The material showed high electromagnetic absorption performance, making it promising for potential applications in multifunctional nano-micro electromagnetic devices.
Article
Materials Science, Ceramics
Yuchen Zhang et al.
Summary: Carbon nanofiber composites prepared using CoAc/PVA as precursor solution demonstrated excellent microwave absorption properties, with CoO formation enhancing impedance matching and interfacial polarization, while also displaying good hydrophobicity. These newly synthesized Co/CoO/CNFs may serve as promising candidates for highly efficient microwave absorption materials with self-cleaning capabilities.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Rui Meng et al.
Summary: The hierarchical CoFe-CNT-rGO electromagnetic wave absorbing composite materials were prepared based on small organic precursors and solid phase sintering process. The in situ template-free process provides an effective and low-cost method for large scale preparation, showing outstanding electromagnetic wave absorbing ability.
Article
Nanoscience & Nanotechnology
Rundong Guo et al.
Summary: The multiple interfacial ZnFe/Fe3C@C porous nanofibers as a microwave absorber exhibit excellent absorption performance and adjustable attenuation capacity.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Zhouyu Tong et al.
Summary: Hierarchical structured Fe3O4/Fe@C@MoS2 nanofibers with excellent microwave absorption properties were successfully prepared in this study, providing a new insight for the design of high-performance microwave absorption materials in the future.
Article
Materials Science, Multidisciplinary
H. Entezari et al.
Summary: This research introduces a novel in situ precipitation route for synthesizing nanocomposites consisting of FeNi and ZnO nanoparticles, which show superior structural and magnetic properties as electromagnetic wave absorbers. After annealing, the nanocomposites exhibit significantly increased saturation magnetization and coercivity. Through optimization of thickness, the nanocomposites demonstrate high reflection loss at a specific frequency.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Jianwei Wang et al.
Summary: The study designed NiCo-LDHs@ZnO nanorods and derived NiCo@C/ZnO composites through heat treating, achieving excellent electromagnetic wave absorption performance with outstanding dielectric and magnetic losses synergy.
NANO-MICRO LETTERS
(2021)
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Jialiang Pan et al.
Article
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Mingliang Ma et al.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
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Yongqian Shen et al.
CERAMICS INTERNATIONAL
(2019)
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Hewei Zhen et al.
Article
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Yuliang Jiang et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
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Xianfeng Meng et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
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Genban Sun et al.
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Fanbin Meng et al.
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Mingtao Qiao et al.
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Xiaohui Liang et al.
ACS APPLIED NANO MATERIALS
(2018)
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Hualiang Lv et al.
ACS APPLIED MATERIALS & INTERFACES
(2015)
