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Summary: Developing highly efficient electrocatalysts is crucial for energy conversion systems. Interface engineering, through density functional theory (DFT) calculations, is shown to enhance the electrocatalytic activity. FeP-CoP heterostructures, synthesized through a metal-organic frameworks (MOFs) confined-phosphorization method, exhibit the lowest overpotential for oxygen evolution reaction (OER) and improved long-term stability due to the synergistic effect between FeP and CoP.
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Summary: In this study, Mo2C/C hollow spheres with different structures were prepared and their microwave absorption behavior was investigated. Results showed that MoC1-x/C double-shell hollow spheres with alpha-phase molybdenum carbide exhibited the best microwave absorption properties.
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Na Wu et al.
Summary: Utilizing cellulose nanofibers (CNFs) as an assistant, the ambient-pressure-dried (APD) preparation of MXene-based aerogels with ultralight but robust, highly conductive, and large-area properties is achievable. The strong interactions between CNF and MXene, as well as the biomimetic microstructure, contribute to the high mechanical strength and stability of the aerogels. Moreover, the abundant functional groups of CNFs enhance the chemical crosslinking and improve the hydrophobicity, water resistance, and oxidation stability of the MXene-based aerogels. The ultrathin, 1D nature of CNFs leads to minimal interlayered gaps and numerous heterogeneous interfaces in the MXenes, resulting in excellent conductivity and electromagnetic interference shielding performance of the aerogels.
ADVANCED MATERIALS
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Wei Wang et al.
Summary: Structural design and composition adjustment can prepare lightweight absorbers with high absorption performance and low matching thickness. In this study, a carbon nanotube-modified CoNi@MoO2/C composite was synthesized. The synthesized composite exhibited a minimum reflection loss value of -63.2 dB and an effective absorption bandwidth of 8.8 GHz at a thickness of 2.5 mm. The microwave absorption mechanism is attributed to the synergistic effects of polarization relaxation, electron transmission, ferromagnetic resonance, as well as multiple reflections and scattering in the hierarchical nanocomposite. The work provides theoretical support for controlled growth of metal-catalyzed CNTs and optimization of electromagnetic and absorption performances.
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Yan Wang et al.
Summary: In an era dominated by electronic equipment, the development of high-efficiency electromagnetic wave absorbers is crucial for solving the problem of electromagnetic pollution. This work introduces heterointerface engineering and S atoms doping to optimize the EMW absorption performance. The Fe3O4/Fe7S8@C composite shows superior EM wave absorption performance with a minimum reflection loss value of -56.2 dB and an effective absorption bandwidth of 4.5 GHz.
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Zhuoyue Liu et al.
Summary: Carbonaceous-magnetic composites with hierarchically porous structures were designed by spray-drying a solution containing metal/carbon precursors and a water-removal salt template. These composites showed excellent electromagnetic absorption performance, with an effective absorption bandwidth covering the X band and remarkable reduction in radar cross section. The results suggest the practical feasibility of these microwave absorbing materials for civilian and military stealth applications.
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Lifu Sun et al.
Summary: Compared with other absorption materials, multicomponent carbon nanotubes composite materials have become increasingly important in the preparation of high-performance electromagnetic wave absorption materials due to their unique dielectric-magnetic advantages. In this paper, an excellent performance of Co/Cu/CrN/CNTs composite materials was prepared by the heating and disintegration of organic amine salt to achieve the restoration of oxides while derivating carbon nanotubes. Due to annealing, slim-shaped CrN evenly attached to the surface of carbon nanotubes. The material forms a rich interface and good impedance matching characteristics, thereby realizing the excellent electromagnetic wave absorption performance of the material.
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Zhuo Cai et al.
Summary: This study developed a MXene/graphene oxide (GO)/Co3O4 nanorods (NRs) (MGCR) aerogel, composed of two-dimensional (2D) MXene and GO nanosheets, and one-dimensional (1D) Co3O4 NRs, to achieve desirable electromagnetic absorption (EMA) properties. The MGCR aerogel showed excellent EMA performances with high reflection loss (RL), wide absorption bandwidth, and ultrathin thickness.
CHEMICAL ENGINEERING JOURNAL
(2023)
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Han Zhang et al.
Summary: The development of highly effective non-precious metal catalysts is crucial for reducing energy consumption and production cost. This research successfully constructed a unique triple-shell CoP@CoP@(Co/Ni)2P hollow structure with rich defect structure, showing remarkable activity against HER over a wide pH range. The excellent HER activity of CoP@CoP@(Co/Ni)2P can be attributed to their multi-shell hollow structure for abundant activity centers, and rich defect structure for the enhanced intrinsic activity. This work provides new insights into the design and synthesis of multi-shell hollow structures and defect-rich catalysts for energy storage and conversion applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
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Xiaoqiu Yue et al.
Summary: This study demonstrates the excellent electrochemical properties of sulfur-doped Co2P@Ni2P heterojunction materials. The hollow core-shell microstructures of sulfur-doped Co2P@Ni2P increase the number of electroactive sites and provide a shortcut for electron transport. Sulfur doping promotes the transfer and rearrangement of interfacial charge, optimizing the redox ability of the active component. Additionally, the sulfur doping and the highly electrochemically active nickel-cobalt phosphide synergistically accelerate the charge transfer, resulting in fast reaction kinetics. The obtained S-Co2P@Ni2P exhibits an optimal specific capacity of 1200 C g-1 at 1 A g-1 and excellent rate performance. Furthermore, when combined with activated carbon (AC) for hybrid supercapacitor (HSC), the S-Co2P@Ni2P//AC device shows an excellent energy density of 41.5 Wh kg-1 and a high-capacity retention of 93% after 15,000 cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
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Zehua Zhou et al.
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NANO-MICRO LETTERS
(2023)
Review
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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.
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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.
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Yali Zhang et al.
Summary: Flexible multifunctional (Fe3O4/PI)-Ti3C2Tx-(Fe3O4/PI) composite films with controllable pore sizes and distribution of Ti3C2Tx hollow microspheres were successfully prepared by sacrificial template method. The composite films demonstrated excellent electromagnetic interference (EMI) shielding performance, thermal conductivity, and mechanical properties, making them suitable for EMI shielding protection for high-power, portable, and wearable flexible electronic devices.
ADVANCED MATERIALS
(2023)
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Jiayao Wang et al.
Summary: Three-dimensional ZnOCo@C with submillimeter porous structure was prepared by one-step thermal expansion of MOFs. The material showed a wide effective absorption band and low reflection loss, indicating its potential as an electromagnetic wave absorption material. This work provides a novel idea for the structural design and composition adjustment of MOFs-based EMW absorbing materials.
MATERIALS TODAY PHYSICS
(2023)
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Materials Science, Multidisciplinary
Chenhao Wei et al.
Summary: Hollow Co/NC@MnO2 polyhedra with lightweight characteristics and enhanced synergistic effect are successfully fabricated via etching-pyrolysis-hydrothermal reaction, and they show high-efficiency microwave attenuation at a low filler loading of 20 wt%.
MATERIALS TODAY PHYSICS
(2023)
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Chemistry, Physical
Wei Wang et al.
Summary: A multiple-component aerogel-based microwave absorber was synthesized, with ultrabroad bandwidth (9.1 GHz) and strong absorption (reflection loss of -65.2 dB). The aerogel exhibited strong hydrophobicity and excellent thermal insulation properties. This study provides new insights into the design of next-generation microwave absorbing materials with multifunctional application.
Article
Chemistry, Physical
Shaoyao Tian et al.
Summary: In this work, N, P co-doped carbon nanofibers (CNF-NP and CNF-PN) were synthesized and the effect of doping orders on microwave absorption (MA) was investigated. It was found that graphitic-N produced from the first N-doping suppressed the formation of C3PO, while for CNF-PN large amounts of C3PO were easily formed when P atoms were first doped. The ratios of different doping sites obviously influenced the MA performance, with CNF-PN exhibiting better MA properties due to appropriate ratios of C-OPO3 and pyrrolic-N/pyridinic-N.
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Xiang Li et al.
Summary: Developing lightweight and high absorption capacity electromagnetic wave absorbing materials is an effective solution to electromagnetic wave pollution. This study successfully synthesized MXene/NCS hybrid materials with good absorption performance, and provided new ideas for designing and synthesizing lightweight and efficient electromagnetic wave absorbing materials.
CHEMICAL ENGINEERING JOURNAL
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Lei Wang et al.
Summary: Rational regulation of microstructure and components is important for excellent microwave absorption performance. The flower-like Mo2C@C composites with ultrafine Mo2C embedded in carbon nanosheet architectures showed high-efficiency microwave absorption with a wide absorbing band. The simple preparation process and lightweight characteristics make these composites promising for applications requiring broadband microwave absorption.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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Hao Zheng et al.
Summary: The core-shell structure FeCo@C nanocages were successfully anchored on the surface of biomass-derived carbon (BDC) from pleurotus eryngii (PE) via freeze-drying and electrostatic self-assembly process, achieving lightweight, anti-corrosive, and excellent absorption properties. This research contributes to the development of multifunctional microwave absorbing materials for practical applications in complex environments.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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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
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Juhua Luo et al.
Summary: Magnetic-dielectric component modulation and heterogeneous interface engineering were utilized to design lightweight and broadband electromagnetic wave (EMW) absorbors. By fabricating carbon nanotubes decorated core-shell nitrogen-doped carbon composites, excellent EMW absorption properties were achieved, including a minimum reflection loss value of -51.13 dB at 9.52 GHz and an effective absorption bandwidth value of 2.96 GHz (8.96-11.12 GHz) at 2.5 mm. The maximum effective absorption bandwidth reached 4.64 GHz (12.80-17.44 GHz) at 1.7 mm, showcasing the superior performance of the composites in EMW attenuation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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Nanoscience & Nanotechnology
Yan-Qin Wang et al.
Summary: This study proposes a unique structural design strategy that combines a hollow structure with gradient hierarchical heterostructures to achieve high-performance microwave absorption. MoS2 nanosheets are grown uniformly onto the double-layered Ti3C2Tx MXene@rGO hollow microspheres. The gradient hierarchical heterostructures, including a MoS2 impedance matching layer, a reduced graphene oxide (rGO) lossy layer, and a Ti3C2Tx MXene reflective layer, have demonstrated significant improvements in impedance matching and attenuation capabilities. Additionally, the incorporation of a hollow structure can further improve microwave absorption while reducing the overall composite density. This work provides an exquisite perspective on heterostructure engineering design for developing next-generation microwave absorbers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
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Mani Ram Kandel et al.
Summary: A noble-metal-free electrocatalyst with a unique heterostructure architecture, consisting of hybrid Ni2P-MnP nanosheet coupled with Co2P nanoflowers (Ni2P-MnP@Co2P), has been successfully developed for highly competent hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The tri-phased Ni2P-MnP@Co2P nanocrystal exhibits greatly active and robust electrocatalytic efficacy with low HER (60 mV) and OER (255 mV) potential achieving current densities of (10 and 30) mA cm-2, respectively. The exceptional electrochemical performance is attributed to the distinctive architectural feature, high surface area with optimum porosity, bountiful Ni2P-MnP and Co2P heterointerface interaction, and synergism among Ni2P, MnP, and Co2P multi-active sites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
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Yaxin Li et al.
Summary: In order to meet practical applications, a high-performance and cost-effective (Fe, Ni)2P@Ni2P electrocatalyst was obtained by precise modulation of morphological and electronic properties. The unique porous structure of (Fe, Ni)2P@Ni2P exposes more active sites, and the transfer of electrons from electron-rich Ni2P to electron-negative (Fe, Ni)2P enhances charge transfer efficiency. With ultralow overpotentials, it exhibits excellent catalytic performance and long-term stability in water splitting, providing a new idea for the design of dual-function electrocatalysts for industrial hydrogen production.
CHEMICAL ENGINEERING JOURNAL
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Hao Zhang et al.
Summary: A series of CoNi-based magnetic nanomaterials were synthesized on the surfaces of chiral carbon nanocoils to form a chiral-magnetic-dielectric trinity composite. This composite exhibits superior microwave absorption performance with a wide effective bandwidth. The study provides a novel chiral-magnetic-dielectric trinity structure for highly efficient microwave absorption.
CHEMICAL ENGINEERING JOURNAL
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Chi Yu et al.
Summary: Graphene aerogels have shown great potential for thermal insulation and electromagnetic protection in the aerospace industry, but their weak mechanical properties have limited their applications. To solve this problem, researchers prepared zirconia fiber/reduced graphene oxide composite aerogels which exhibited exceptional mechanical properties and microwave absorption performance. Even after high- and low-temperature treatments, the composite aerogels still showed excellent performance, indicating their high potential for applications in space suits, spacecraft, and probes.
CHEMICAL ENGINEERING JOURNAL
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Article
Chemistry, Physical
Kai Chang et al.
Summary: In this study, a triphasic Ni2P - Fe2P - CoP heterostructure was designed for the bifunctional catalysis of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline medium. The architecture of Ni2P - Fe2P - CoP exhibited the best electronic properties and enhanced multiple electroactive site number, resulting in a high performance in alkaline water splitting. Moreover, the solar-driven water splitting system demonstrated a high solar-to-hydrogen conversion and excellent long-term stability.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Qijie Wang et al.
Summary: In this study, a ferromagnetic N-doped reduced graphene oxide aerogel (N-rGA) with NiO/NiFe2O4 (NFO) is successfully developed, showing enhanced electromagnetic wave (EMW) absorption capability. The NNGA-2 exhibits excellent absorption performance at a specific ratio, while NNGA-3 performs well in the low-frequency band.
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Fei Pan et al.
Summary: This study successfully synthesized an electromagnetic wave absorbing material with two-dimensional nanosheets anchored on one-dimensional silk-derived carbon fiber. The material exhibited excellent EMW absorption performance, which can be attributed to the vertical growth and cross-linking of the nanosheets, as well as the multiple loss mechanisms in the composite.
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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)
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Zhengchen Wu et al.
Summary: This article introduces a method of integrating hierarchical polarizations into a nanostructure to enhance microwave absorption performance. Researchers have prepared Mo2C@N, P dual-doped carbon microspheres through a simple yeast-template method, which exhibit excellent microwave absorption performance. These achievements have important application prospects for the preparation of porous metals or metal compounds/carbon composites.
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Chemistry, Multidisciplinary
Wei Zhou et al.
Summary: Purposefully controlling the exposure of crystal planes can improve the catalytic activity of nanocrystals. In this study, Co2P nanocrystals with high exposure of the (211) lattice plane were designed and loaded onto 2D hexagonal V2O3 nanosheets. This material showed enhanced redox kinetics and superior performance in lithium-sulfur batteries.
Article
Multidisciplinary Sciences
Yinglai Hou et al.
Summary: In this study, hygroscopic holey graphene aerogel fibers (LiCl@HGAFs) with integrated functionalities of highly efficient moisture capture, heat allocation, and microwave absorption were reported. The fibers achieved a water sorption capacity over 4.15 g g(-1), and could be regenerated through both photo-thermal and electro-thermal approaches. Additionally, LiCl@HGAFs exhibited efficient heat transfer and broad microwave absorption performance.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Qi Li et al.
Summary: This study demonstrates the successful development of ultrathin microwave absorbent using VS4/rGO heterostructure. The results show that by regulating the heterointerface, impedance matching and attenuation constant can be effectively improved, leading to enhanced microwave absorption performance.
NANO-MICRO LETTERS
(2022)
Article
Materials Science, Ceramics
Jiabin Ma et al.
Summary: In this study, three new high-entropy spinel ferrite ceramics were designed and synthesized with excellent electromagnetic absorbing capabilities. Among them, (Mg0.2Mn0.2Fe0.2Co0.2Ni0.2)Fe2O4 showed the best performance in electromagnetic wave absorption.
JOURNAL OF ADVANCED CERAMICS
(2022)
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Materials Science, Multidisciplinary
Runrun Cheng et al.
Summary: In this study, the electromagnetic wave absorption performance of Co9S8/FeCoS2/C composite material was investigated by designing lightweight absorbers. The experimental results showed that the composite material exhibited excellent absorption performance and achieved ideal absorption even at low filler loading. This is attributed to the sulfur doping in the material, which enhances the interface polarization relaxation process and improves impedance matching characteristics.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Dawei Liu et al.
Summary: The construction of special three-dimensional microstructure is a fascinating approach to upgrade the electromagnetic properties of carbon-based microwave absorption materials. In this study, carbon nanotubes (CNTs)@Ni/C foams (CNCFs) were successfully fabricated and their microwave absorption properties were investigated. CNCFs with a carbon content of 66.3 wt% showed admirable microwave absorption performance, making it a promising candidate for high-performance microwave absorption materials.
Article
Chemistry, Physical
Zhongxin Duan et al.
Summary: This study reports a novel biphosphide catalyst with improved hydrogen adsorption energy by constructing heterogeneous structures and cation doping. The obtained catalyst exhibits outstanding hydrogen evolution reaction performance at all pH range and shows low overpotential as an oxygen evolution reaction catalyst in alkaline solution. Additionally, it demonstrates low voltage and long durability for water electrolysis.
Editorial Material
Multidisciplinary Sciences
Yali Zhang et al.
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Chemistry, Multidisciplinary
Bin Li et al.
Summary: Manufactured lightweight, thin, large-area, and ultraflexible composite films with bicontinuous structure exhibit high mechanical strength, good electrical conductivity, hydrophobicity, and oxidation stability, and have potential applications in wearable devices, defense, antibacterials, and the Internet of Things.
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
Chemistry, Multidisciplinary
Zehao Zhao et al.
Summary: This study proposes a new strategy to overcome the limitations of current EMW absorbers by combining functional polymer frameworks and liquids with strong EMW absorption properties. The gels formed by immobilizing different liquids in the polymer networks can achieve precise tuning of EMW absorption performances.
ADVANCED MATERIALS
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Article
Materials Science, Composites
Mengxiao Sun et al.
Summary: This research proposes a competition optimization strategy to fabricate multiphase core-shell hetero-interfaces and enhance microwave absorption performance. Fractured Ag particles are encapsulated into 1D N-doped carbon networks and magnetic Co nanoparticles are wrapped by N-doped carbon shells to achieve the construction of multiphase core-shell hetero-interfaces. The obtained composites exhibit promoted impedance characteristics and overwhelming microwave absorption.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xin Ling et al.
Summary: Electromagnetic pollution has negative effects on the operation of electronic devices and human safety. To address this issue, microwave absorption materials with desirable absorption intensity and frequency bandwidth need to be designed. Inspired by the electromagnetic response behaviors of leafhopper microstructure, a hetero-microstructure with hollow void is constructed to enhance microwave absorption performance. Promising results were achieved in the experiment.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Hengda Sun et al.
Summary: In this study, carbon nanotubes and ammonium polyphosphate composite were prepared and processed into a coating to achieve materials with good electromagnetic wave absorption and flame retardancy. The optimal parameter range for broadband absorption was determined through simulation of a pyramid model. This research is significant for Over-the-Air tests in microwave anechoic chambers.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jia Zhao et al.
Summary: In this study, novel 3D flower-like hollow CuS@PANI microspheres were successfully fabricated and their electromagnetic wave absorption properties in the X-band were systematically studied. The microspheres exhibited excellent absorption performance and effective absorption bandwidth due to their outstanding impedance matching characteristics and dielectric loss capability. Furthermore, the distinctive flower-like hollow structure of the microspheres provided an additional wave-absorbing mechanism.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Review
Chemistry, Physical
Yunfei Yang et al.
Summary: With the rapid development of the electronic industry and wireless communication technology, electromagnetic interference (EMI) has become increasingly serious, posing a significant threat to the normal operation of electronic equipment and human health. In response, the development of high-performance EMI shielding materials has become urgent. Hydrogel-based materials offer a novel option for EMI shields, providing good mechanical flexibility, fatigue durability, and stretchability for a wide range of applications, particularly in EMI shielding and flexible functional devices. This paper reviews the current progress of hydrogel-based EMI shields and includes novel studies on pore structure design that could advance the development of these materials. Promising development directions for hydrogel-based EMI shields are suggested as an outlook, aiming to provide a reference for designing hydrogels with excellent EMI shielding performance and multifunctionalities.
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
Nanoscience & Nanotechnology
Yue Wu et al.
Summary: This study synthesized CuS@rGO aerogels and investigated their pore structure, absorption properties, radar cross section, and infrared emissivity by modulating the additive amounts and reduction methods. The results showed that the aerogels exhibited excellent absorption performance in the ultrabroad bandwidth, effectively reduced the radar cross section, and possessed thermal insulation and infrared stealth versatility.
NANO-MICRO LETTERS
(2022)
Article
Engineering, Environmental
Sumit Chahal et al.
Summary: Graphene, the miracle material of the 21st century, possesses extraordinary physico-chemical properties. This study reports on the successful microwave doping of graphene with phosphorus and sulfur atoms, resulting in high doping levels and the emergence of ferromagnetism and spin polarization. This novel doping strategy holds great potential for the development of graphene-based spintronic chips.
CHEMICAL ENGINEERING JOURNAL
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Article
Chemistry, Applied
Bo Zhou et al.
Summary: This study investigates the electrochemical reaction behaviors and optimization of reaction kinetics of hydrazine electrooxidation at metal phosphides. Experimental results show that Co doping effectively adjusts the dehydrogenation kinetics of hydrazine electrooxidation, lowering the adsorption energy and boosting the reaction kinetics. This work represents a breakthrough in improving the catalytic performance of non-precious metal electrocatalysts for hydrazine electrooxidation and highlights an energy-saving electrochemical hydrogen production method.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Xiaojuan Lian et al.
Summary: In this study, Co3O4@Co9S8 core-shell nanorods were designed and prepared by hydrothermal method, showing promising performance as an electrode material with large surface area and efficient ion diffusion path. The hierarchical structure exhibited satisfactory specific capacity, good rate performance, and cycling stability, as well as successfully driving LEDs, indicating exciting application prospects.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Xuefei Xu et al.
Summary: The newly developed NiAl-LDH/G composite, synthesized by atomic-layer-deposition-assisted in situ growth, exhibits excellent microwave absorption performance and corrosion resistance, showing great potential for practical applications.
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Materials Science, Multidisciplinary
Sai Gao et al.
Summary: In this study, a series of MOFs derived magnetic porous carbon microspheres with tunable diameter and high specific surface area have been successfully synthesized via a pyrolysis process. These carbon microspheres exhibit high-performance microwave absorption with low filler loading, showing potential for practical applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xiaohu Xu et al.
Summary: A novel bifunctional CoxP@Co3O4 nanocomposite with grass-like and block-like structures was successfully prepared, showing excellent electrochemical catalytic activity in water splitting with high specific surface area and fast charge transport. The phosphorization strategy was found to alter the electronic structure and adsorption capability of the material, leading to outstanding performance in both water splitting and hydrazine oxidation reactions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Analytical
Hoang Thi Hien et al.
Summary: In this study, NiO/PPy hybrid nanostructured films were fabricated by chemical vapor-phase polymerization with NiO nanoparticles drop-coated with FeCl3 oxidant on Al2O3 substrates. By adjusting the content of FeCl3 oxidant, the ratios between NiO and PPy in the hybrid films were modified. The gas-sensing performance of the NiO/PPy films showed high sensitivity to NH3 gas, with the main contribution coming from the hybrid nanostructure between NiO nanoparticles and PPy.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Xiaodan Chen et al.
Summary: Nanoparticles of Co3O4 and CoO exhibit significant chemical and magnetic properties, with experiments and calculations revealing an ordered transformation at high temperatures, characterized by a low interface energy and a substantial ferromagnetic moment at the interface.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Yabin Ma et al.
Summary: This study presents a simple method to enhance microwave absorption performance at low thickness by constructing heterojunction structures. The Mo-Ni2P/rGO absorbers designed via phosphating treatment at 800°C exhibit excellent microwave absorption performance. The constructed heterojunctions efficiently utilize the interactions between different dielectric media, improving electrical conductivity, interface polarization, and rational combination of different loss materials.
INORGANIC CHEMISTRY FRONTIERS
(2021)
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Yongchao Huang et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
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Ruili Wang et al.
ACS APPLIED MATERIALS & INTERFACES
(2019)
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