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Review
Materials Science, Multidisciplinary
Zhenguo Gao et al.
Summary: Currently, metal-organic framework (MOF)-derived nano-micro architectures are being actively researched for their electromagnetic wave absorption capabilities, which are enhanced by their flexible composition and structural manipulation for improved dielectric and magnetic attenuations. However, the fundamental design principles in MOF-derived microwave absorption materials have not been summarized. This review analyzes the design principles in these materials from the perspectives of diverse monomers (ligands and ions of MOFs), topologies, chemical states, and physical properties. It also comprehensively summarizes the essential information regarding the EM wave absorption mechanism and the structural-functional dependency. Finally, it proposes a clear insight into the challenges and perspectives of the industrial revolution upgrading in this promising field.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Chemistry, Physical
Ruiwen Shu et al.
Summary: In this study, FeCoNi/C decorated graphene composites were successfully fabricated and the electromagnetic parameters and wave absorbing properties were regulated by changing the addition amounts of graphene oxide. The composite with an addition amount of 67.2 mg showed the best electromagnetic absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
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
Chemistry, Physical
Jun Liu et al.
Summary: The novel hollow SiC@C@PANI (SCP) nanoparticles were prepared through a two-step in situ polymerization method, template method, and carbon thermal reduction method. By coating different proportions of polyaniline (PANI) on the surface of SiC@C microspheres, the suitable dielectric loss and impedance matching were achieved, the multilayer heterogeneous interface significantly improved the polarization relaxation behavior, and the hollow structure enhanced the multiple reflections and scattering of electromagnetic waves. Finally, the effective absorption bandwidth (EAB) of SCP-1:1.5 reached 5.61 GHz at only 1.88 mm, and by introducing multiple interferences, the EAB was broadened to 10 GHz, completely covering the X, Ku bands. Simultaneous optimization strategies for microscopic design and macroscopic regulation of hollow multi-shell absorbers provide ideas for breaking the performance boundaries of MA materials.
APPLIED SURFACE SCIENCE
(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
Wenxu Zhong et al.
Summary: A double-salt template method is used to fabricate N, S-codoped graphitic carbon nanoframes (GF) anchored on graphene sheets (GS). The numerous interfaces between the GF and GS enhance the electromagnetic wave absorption performance of the sample. The N, S-GF/GS exhibits excellent absorption performance at a low filler ratio, providing a promising approach for high-performance electromagnetic wave absorbers.
Article
Chemistry, Physical
Ruiwen Shu et al.
Summary: In this study, porous carbon-based magnetic composites derived from iron zinc bimetallic MOF were prepared and their electromagnetic parameters and absorbing properties were regulated by changing the pyrolysis temperature. The composite pyrolyzed at 700 degrees C showed the best EM absorption performance, with a minimum reflection loss of about 60 dB and a broad absorption bandwidth of 4 GHz (8-12 GHz, covering the whole X band) at a matching thickness of 2.5 mm and a filler loading ratio of 40 wt%.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Liantao Sun et al.
Summary: Defects engineering in metal oxide is crucial for enhancing the catalytic oxidation of VOCs. In this study, the influence of crystal facet of Co3O4 on propane oxidation was investigated, and intelligent Cu doping was performed on the most active (110) facet exposed Co3O4 catalyst. The optimized catalyst demonstrated significantly enhanced activity by activating Co-O bond and generating active oxygen species. This study provides valuable insights for the design of non-precious metal catalysts in VOCs abatement.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Panbo Liu et al.
Summary: Hierarchical MXene/metal-organic framework derivatives with coherent boundaries and magnetic units below critical grain size were constructed to achieve synergistic dielectric-magnetic enhancement through phase-evolution engineering and dynamic magnetic resonance. The experimental results and theoretical calculations demonstrated the maximized absorption capability and versatile methodology for manipulating microwave attenuation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
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.
Article
Chemistry, Physical
Ziming Chen et al.
Summary: Bionic structure absorbers have significant applications in both military and civil fields. In this research, the structural model of moth-eye was extracted and the size was designed through electromagnetic simulation. Conductive graphite powder was used as the wave absorbing agent and the final products were prepared based on the simulation parameters. The experimental results showed that the absorption rate of the products above 90% could reach a frequency bandwidth of 13 GHz, covering C, X, and Ku bands.
Article
Materials Science, Composites
Yunpeng Qu et al.
Summary: Metacomposites have recently been a focus of attention due to their potential in electronic and dielectric devices, but they have faced challenges with extremely high negative permittivity. This study introduces a novel strategy to suppress plasma oscillation in Metacomposites and control the value of negative permittivity by incorporating semiconductive polyaniline into PANI/Ni metacomposites. The resulting materials exhibit weakly negative permittivity with fine-tuning capabilities, offering promising applications in electromagnetic shielding, microwave absorption, and novel electromagnetic sensors.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Han Wu et al.
Summary: The study successfully achieved negative permittivity by preparing ternary percolation nanocomposites, investigating the synergy between graphene and carbon nanotubes, and controlling the formation of conductive paths to regulate negative permittivity precisely.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Panbo Liu et al.
Summary: Hierarchical double-shelled nanotubes (DSNTs) exhibit efficient microwave absorption due to their desirable heterogeneous interfaces, multiple magnetic heteroatomic components, and hollow hierarchical microstructures.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jiang Guo et al.
Summary: In this study, CoFe2O4/graphite-polypyrrole (PPy) metacomposites with negative dielectric constant were successfully prepared using the surface-initiated-polymerization method. The negative dielectric constant was regulated by changing the content of CoFe2O4/graphite. The crystal structure, chemical structure, and microstructure of the samples were characterized, and the magnetic properties were reported. This work provides guidance for the fabrication of polymer-based metacomposites with tunable negative dielectric constant.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Zheng Zhang et al.
Summary: This work focuses on the fabrication and characterization of flexible polystyrene/graphene (PS/GR) composites with epsilon-near-zero (ENZ) properties at radio frequency. The addition of graphene nanosheets in PS matrix led to the formation of a continuous conductive network, resulting in the observation of ENZ behavior at around 920 kHz. This research demonstrates the potential of flexible PS/GR composites in applications such as invisibility cloaks, drug delivery, and soft robotics.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Review
Nanoscience & Nanotechnology
Peitao Xie et al.
Summary: Dielectric constant is a physical parameter that determines the response of materials to electromagnetic waves or electrical field. Negative dielectric property, a key for constructing metamaterials, has unique electromagnetic properties. Recent advances have demonstrated the feasibility of achieving negative dielectric property in heterogeneous composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Huan Zhang et al.
Summary: This study prepared a series of large-sheet GO using a thermal reduction method and investigated their MA properties. The results showed that the MA performance of rGO was related to the reduction degree and the size of the sheet. Large sheet graphene was more likely to form a conductive network, reducing the filler loading. By mixing rGO with different reduction degrees, the reflection loss and absorption bandwidth were significantly improved, while the loading was only 1.5 wt%.
Article
Chemistry, Multidisciplinary
Lihong Wu et al.
Summary: A frequency-tuning strategy using pressure variations is developed to achieve dynamic frequency regulation of microwave absorbing materials. The fabricated carbon nanocoils/carbon foam (CNCs/CF) can be tuned from S-band to Ku-band through adjusting compression strain. The method opens up new possibilities for the applications of dynamically frequency-tunable MAMs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Zhong Leng et al.
Summary: This study explores the conduction mechanism of conductor-insulator composite materials by adjusting the content and distribution of carbon nanotubes (CNTs) and achieves effective regulation of negative dielectric constant. CNTs/epoxy composites exhibit near-zero dielectric and negative dielectric constant properties at specific volume fractions. The findings provide a method for simple and efficient control of negative permittivity and facilitate its application in electronic components and electromagnetic shielding.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Mingxiang Liu et al.
Summary: This study investigates the frequency dispersion mechanism of negative permittivity in carbon nanotubes (CNTs)/epoxy composites. The Debye model is used to describe the dielectric relaxation when the CNT content is below the percolation threshold, while the Drude model explains the negative permittivity resulting from the plasma oscillation of free electrons in CNT networks above the percolation threshold. A novel Debye-Drude model is proposed to explain the low-frequency dispersion and weakly negative permittivity observed when the CNT content is slightly higher than the percolation threshold.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Engineering, Environmental
Lihong Wu et al.
Summary: In this study, a hierarchical heteronanobrush architecture was successfully constructed for excellent microwave absorption and thermal management. The synthesized TiO2@C-Ni/CNTs nanobrushes exhibited superior microwave absorption performances under the synergic action of conductive loss, interface polarization, and three-dimensional spatial network structure.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jiaqi Tao et al.
Summary: The study focused on the micro-morphology design of nanomaterials for improved microwave absorption properties. Results showed that the multi-shell structure enhanced the microwave absorption performance of carbon nanoparticles, with the three-shell structure achieving an effective absorption bandwidth of 5.17 GHz at a thickness of 1.6 mm and a best reflection loss of -18.13 dB.
Article
Nanoscience & Nanotechnology
Yanyan Dong et al.
Summary: This research successfully constructed carbon fiber/zinc oxide nanorod composite using sustainable biomass Typha orientalis as a template, achieving enhanced electromagnetic wave absorption performance. The new material shows outstanding absorption properties and has potential applications in the future.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Chemistry, Physical
Huanqin Zhao et al.
Summary: Developing ultralight microwave absorbers with good heat-insulating properties is crucial for modern society. Graphene-like porous carbon nanosheets derived from waste pomelo peel exhibit superior thermal insulation and microwave absorption properties. The unique 2D morphology and high porosity contribute to their excellent performance.
Article
Nanoscience & Nanotechnology
Yunpeng Qu et al.
Summary: Percolative nanocomposites of Ag/CaCu3Ti4O12 were synthesized in-situ, showing transitions in dielectric and magnetic properties at radiofrequency band. The observation of negative permittivity and negative magnetic responses in percolated composites is attributed to low-frequency plasmonic state and induced eddy currents in conductive Ag networks. The competitive effect between the polarization response of the positive CCTO matrix and the plasma oscillation of the negative Ag networks leads to tunable negative permittivity.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Multidisciplinary
Panbo Liu et al.
Summary: A controlled synergistic protecting-etching strategy was proposed to construct hollow Co@N-doped carbon nanocages with uniform heterojunctions, addressing the shortcomings of using sacrificing templates or corrosive agents and exhibiting superior microwave absorption performance. The strategy not only provides inspiration for creating hollow void inside other MOFs crystals, but also broadens the candidates for lightweight and high-efficient microwave absorbers.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Han Wu et al.
Summary: This study successfully prepared Ti3AlC2-polyimide percolating composites by controlling the Ti3AlC2 content, achieving the regulation of negative dielectric constant. It was found that with the formation of Ti3AlC2 conductive network, the conductive mechanism changed from hoping conduction to metal-like conduction, and negative permittivity appeared above the percolation threshold.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Mingxiang Liu et al.
Summary: Materials with metal conductive phase often exhibit negative permittivity, and the formation mechanism of this behavior is still under exploration. By preparing iron/epoxy composites, the conductive behavior was observed to transition from hopping conduction to metal-like conduction with increasing iron content. The occurrence of negative permittivity was attributed to plasma oscillation of delocalized electrons in the iron conductive network, and the epsilon-near-zero property was observed when the iron content exceeded a certain threshold. By analyzing with the Debye-Drude model, it was found that a transformation from capacitive to inductive behavior accompanied the appearance of negative permittivity, and adjusting the iron content proved to be an effective way to regulate the dielectric property.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Xiaoke Lu et al.
Summary: A novel gelatin-derived N-doped hybrid carbon nanospheres with adjustable porous structure (PGCNs) were successfully fabricated in this work, showing good electromagnetic wave absorbing performance. The porous structure on PGCNs could be tuned by changing the alkaline addition, leading to optimized absorbing properties.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Wenqiang Zhang et al.
Summary: This study proposes a new design strategy for high dielectric permittivity composite materials, achieving high dielectric permittivity and low loss simultaneously by introducing W-WO3/BaTiO3 foam into an epoxy matrix and increasing the oxidation temperature. Finite element simulation results show that the formation of a WO3 shell on the surface of W helps weaken the leakage current density and significantly reduce the loss.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Materials Science, Ceramics
Guohua Fan et al.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
Zhongyang Wang et al.
Article
Chemistry, Physical
Dawei Liu et al.
Article
Chemistry, Physical
Rixin Fei et al.
ADVANCED ENERGY MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Peitao Xie et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Engineering, Multidisciplinary
Hongxia Zhang et al.
COMPOSITES PART B-ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Jin Tang et al.
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Qian Jiang et al.
Article
Chemistry, Multidisciplinary
Guohua Fan et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Multidisciplinary Sciences
Peitao Xie et al.
Article
Chemistry, Multidisciplinary
Xiao-Juan Zhang et al.
ADVANCED FUNCTIONAL MATERIALS
(2018)
Article
Engineering, Electrical & Electronic
Peitao Xie et al.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Materials Science, Multidisciplinary
Peitao Xie et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
Article
Materials Science, Multidisciplinary
Yuliang Jiang et al.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2018)
Article
Engineering, Electrical & Electronic
Dongxiao Han et al.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Engineering, Chemical
Jingyi Fu et al.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2017)
Article
Chemistry, Physical
Peitao Xie et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Chemistry, Physical
Kai Sun et al.
JOURNAL OF PHYSICAL CHEMISTRY C
(2017)
Article
Chemistry, Physical
Peitao Xie et al.
Article
Physics, Applied
Peitao Xie et al.
APPLIED PHYSICS LETTERS
(2017)
Article
Chemistry, Physical
Lei Wang et al.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2015)
