Related references
Note: Only part of the references are listed.
Article
Materials Science, Multidisciplinary
Wenjian Wang et al.
Summary: This study proposes a strategy for salt-assisted pyrolysis of metal-organic frameworks (MOFs) to construct a 3D hybrid nanostructure comprising carbon nanoparticles and carbon nanosheets. The three-dimensional structure was adjusted by varying the type and proportion of salt, and NC-KCl exhibited the best microwave absorption performance. Numerical simulation results show that the 3D hybrid nanostructures outperform isolated nanoparticle structures in terms of interfacial polarization and conductivity loss. This work provides a practical guide for optimizing the absorption properties of MOF-derived carbon microwave absorbing materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Longjun Rao et al.
Summary: In this study, a confined diffusion strategy is proposed to fabricate functional magnetic-carbon hollow microspheres, which exhibit excellent low-frequency EM wave absorption performance. The optimized hollow FeCo@C microspheres demonstrate a minimum reflection loss (RLmin) of -35.9 dB and absorption bandwidth covering almost the entire C-band. The investigation reveals that large size of the magnetic-carbon integration, high-density confined magnetic units, and strong magnetic coupling are essential for enhancing the magnetic loss dissipation of low-frequency EM waves.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Jianxin Chen et al.
Summary: This study proposes a new cooperative method for constructing hollow macroporous magnetic carbon fibers, aiming to solve the conflicts between lightweight characteristics and high absorption performance in microwave absorbents. The fabricated fibers exhibit excellent microwave attenuation performance and can meet the demand for electromagnetic protection.
Article
Chemistry, Physical
Jianxin Chen et al.
Summary: In this work, a hierarchical yolk-double shell Fe@NCNs/MnO2 architecture is fabricated using thermal-induced phase separation engineering and redox strategy. The composites exhibit matched impedance and wideband microwave absorption due to the internal cavity architectures, multiple hetero-interfaces, dielectric-magnetic synergistic effect, and hierarchical conformations. The minimum reflection loss reaches -46.7 dB with 3.3 mm thickness, and the effective bandwidth (<-10 dB) achieves 10.8 GHz at 3.1 mm.
Review
Chemistry, Multidisciplinary
Leilei Liang et al.
Summary: Electromagnetic absorbers are playing increasingly essential role in the electronic information age and even towards the coming intelligent era. The advantages of heterointerface engineering and its EM characteristics inject vitality for designing high-efficiency EM absorbers, but there are still huge challenges in understanding and reinforcing these interface effects.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Ming Qin et al.
Summary: Comprehensive views on dielectric loss mechanisms provide important guidance for understanding the attenuation behavior of materials. Current researches focus more on materials synthesis rather than in-depth mechanism study. Therefore, further research on in-depth mechanisms, emphasis on new dielectric loss mechanisms, and new modulation strategies are needed to achieve simple and effective EM wave attenuation behavior modulation.
Review
Materials Science, Multidisciplinary
Long Xia et al.
Summary: This review article examines the simulation and numerical analysis of electromagnetic materials, focusing on the electromagnetic response mechanism and the key roles of electromagnetic calculation. It also highlights the current issues and potential opportunities in numerical simulation of absorbing materials, and proposes future prospects.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yuan Fang et al.
Summary: This study investigated the factors affecting the performance of electromagnetic wave absorption materials and proposed a new quantitative model using the materials genome methodology. The results provide insights for the design of conduction-type EM wave absorption materials.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xingwang Hou et al.
Summary: With the deterioration and complexity of the electromagnetic environment, there is an increasing demand for thin, light, and wideband electromagnetic wave absorbing materials. Graphene-based composites are considered as potential candidates for future microwave absorbing materials. In this study, Fe@graphene was prepared using a modified salt template method and iron phthalocyanine as the carbon source. The Fe@graphene achieved excellent electromagnetic wave absorption performance with an effective absorption bandwidth of 7.9 GHz at a filling level of 1 wt%. The effect of material dispersion and cubic structure was also investigated using finite element simulation.
Article
Nanoscience & Nanotechnology
Yan Guo et al.
Summary: This study demonstrated the successful preparation of NiFe2O4 nanoparticles embedded MXene nanosheets through self-assembling technique, which significantly improved the electromagnetic wave absorption performance. The presence of magnetic NiFe2O4 nanoparticles effectively prevented the self-stacking of MXene nanosheets, leading to enhanced conduction loss and interface polarization loss in the composite materials.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Review
Chemistry, Physical
Rajesh Kumar et al.
Summary: The demand for electromagnetic interference (EMI) shielding has risen significantly due to rapid developments in the electronics industry. New materials like carbon-based nanostructures, polymers, and MXene-based 2D layered materials are being explored as alternatives to conventional metal sheets for EMI shielding, offering advantages such as low weight, cost-effectiveness, and good thermal/electrical properties. Composite materials combining polymers with conducting carbon fillers have potential as EM wave absorbers, while MXene-based materials have garnered attention for their application in EMI shielding.
Article
Engineering, Environmental
Lei Wang et al.
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Multidisciplinary
Wanlin Feng et al.
Article
Chemistry, Multidisciplinary
Hao Sun et al.
ADVANCED MATERIALS
(2014)
Article
Chemistry, Inorganic & Nuclear
Changzheng Wu et al.
INORGANIC CHEMISTRY
(2009)
Article
Chemistry, Multidisciplinary
Changzheng Wu et al.
ADVANCED MATERIALS
(2006)
Article
Chemistry, Multidisciplinary
RC Che et al.
ADVANCED MATERIALS
(2004)
