Two-dimensional materials, especially the newly emerging MXene, have attracted numerous interests in fields of energy conversion/storage and electromagnetic shielding/absorption. However, inherently inevitable aggregation absence magnetic loss MXene considerably limit its absorption application. The introduction component favorable structural engineering are alternatives to improve microwave (MA) performance. Herein, we report a spheroidization strategy assemble double-shell MXene@Ni...

Abstract Hierarchical engineering of suitable dielectric‐magnetic multicomponents shows good performance for microwave absorbers, but still face bottlenecks. Herein, hierarchical double‐shelled nanotubes (DSNTs), in which the inner magnetic tubular subunits are assembled by magnetic‐heteroatomic components through cation‐exchange reactions, and outer dielectric MnO 2 nanosheets strengthen synergistic interactions between confined heterogeneous interfaces ingeniously designed constructed....

Rational designing of one-dimensional (1D) magnetic alloy to facilitate electromagnetic (EM) wave attenuation capability in low-frequency (2-6 GHz) microwave absorption field is highly desired but remains a significant challenge. In this study, composite EM absorber made FeCoNi medium-entropy embedded 1D carbon matrix framework rationally designed through an improved electrospinning method. The 1D-shaped demonstrates the high-density and continuous network using off-axis electronic...

Abstract The rational design of magnetic composites has great potential for electromagnetic (EM) absorption, particularly in the low‐frequency range 2–8 GHz. However, scalable synthesis such absorbers with both high content and good dispersity remains challenging. In this study, a confined diffusion strategy is proposed to fabricate functional magnetic‐carbon hollow microspheres. Driven by ferromagnetic enhanced Kirkendall effect, situ alloying FeCo nanoparticles tightly carbon shells,...

Abstract Dielectric polarization and magnetic resonance associated with intrinsic constituent extrinsic structure are two kinds of fundamental attenuation mechanisms for microwave absorbers, but remain extremely challenging in revealing the composition‐morphology‐performance correlation. Herein, hierarchical MXene/metal‐organic framework derivatives coherent boundaries units below critical grain size constructed to realize synergistic dielectric–magnetic enhancement by phase‐evolution...

Abstract Severe lower‐frequency (2–8 GHz) microwave pollution caused by the rapid development of 5th generation (5G) communication posts significance on cutting‐edge absorbers. However, intensely coupled wave‐impedance and dissipating ability dramatically hinder their performance in exact range. The rationally designed heterostructure hard/soft ferrite composite provides an efficient solution to address issue. In this context, core‐shell structured BaFe (12‐x) Co x O 19 @Fe 3 4 with abundant...

Heterointerface engineering is evolving as an effective approach to tune electromagnetic functional materials, but the mechanisms of heterointerfaces on microwave absorption (MA) remain unclear. In this work, abundant are customized in multilevel hollow architecture via a one-step synergistic polymerizing-etching strategy. Fe/Fe3 O4 @C spindle-on-tube structures transformed from FeOOH@polydopamine precursors by controllable reduction process. The impressive heterostructures realized spindle...

Abstract Dimensional engineering of appropriate structure is an effective approach to achieve high‐performance electromagnetic (EM) wave absorption for magnetic materials. However, controllable modulation the material configuration and a comprehensive understanding relationship between loss mechanism remain challenging. Herein, CoNi pentagonal nanopagodas (PNPs) are ingeniously tailored using competition orientation strategy, in which high‐density PNPs with sharp corners/edges hierarchical...

Abstract Precise manipulation of van der Waals forces within 2D atomic layers allows for exact control over electron–phonon coupling, leading to the exceptional quantum properties. However, applying this technique diverse structures such as 3D materials is challenging. Therefore, investigating new hierarchical and different interlayer crucial overcoming these limitations discovering novel physical In work, a multishelled ferromagnetic material with controllable shell numbers developed. By...

Abstract Traditional fraud detection approaches often use linking entities, such as device, email, and address, to identify fraudulent transactions users. However, methods continue evolve escalate, the fraudsters can fabricate involved entities thus hide their real intent. To make more robust, we incorporate user behaviors in pipeline consider biometric characteristics that are difficult forge. In this work, conduct a detailed study of how behavior data help prevent activity e-commerce. We...

1D structures have been gaining traction in the microwave absorption (MA) field benefiting from their electromagnetic (EM) anisotropy. However, there remain considerable challenges adjusting EM properties by structural design. Herein, using coaxial electrospinning and solvothermal method, gradient has achieved TiO2@Co/C@Co/Ni multilayered microtubes. From outer layer to inner one, impedance matching is gradually worsened, while loss capacity continuously enhanced, facilitating both incidence...

The advancement of electromagnetic (EM) protection technology promotes the urgent demand for structural design functional materials. Here, tadpole-like Fe@SiO2 @C-Ni (FSCN) composites with magnetic core-shell and nonspherical hollow architectures through multiple hydrolysis-polymerization reactions are reported. Fe core well-distributed Ni nanoparticles greatly promote properties FSCN construct a multiscale coupling network. Meanwhile, multishell consisting carbon shell decorated possess an...

Abstract Niobium‐based tungsten bronze oxides have recently emerged as attractive fast‐charging anodes for lithium‐ion batteries (LIBs), owing to their structural openings and adjustability. However, electrodes with structures usually suffer from variability induced by Li + intercalation/de‐intercalation, leading unsatisfactory cycling performance. To circumvent this limitation, a novel tetragonal (TTB) structure, Ba 3.4 Nb 10 O 28.4 (BNO), is developed an anode material LIBs prominent An...

Abstract The fabrication of nanometer‐sized magnetic heterostructures with controlled components and specific interfaces holds great significance in the field electromagnetic (EM) wave absorption. However, process achieving these structures still poses significant challenges. Here, abundant are successfully fabricated by utilizing surface energy anisotropy differences nonasymmetric hammer‐shaped interface to support nucleation growth heterostructure while effectively inhibiting their...

Abstract Distinct skyrmion phases at room temperature hosted by one material offer additional degree of freedom for the design topology-based compact and energetically-efficient spintronic devices. The field has been extended to low-dimensional magnets with discovery magnetism in two-dimensional van der Waals magnets. However, creating multiple 2D magnets, especially above temperature, remains a major challenge. Here, we report experimental observation mixed-type skyrmions, exhibiting both...

Abstract The technological advances in wearable electronics and military stealth have spawned extensive research into electromagnetic wave absorbents. Despite the rapid progress geometrical modulation of magnetic absorbents, engineering strategy microwave‐responsive domains is underdeveloped response dynamics remain unclear. Herein, a surface finite‐sized atom reconstruction procedure proposed to accurately modulate local topological domains, dramatically enhancing loss capacity. Due...

The single-atom sites (SAs) have achieved enhanced performance toward oxygen reduction reaction (ORR) with the effective utilization of active sites. However, excess adsorption intermediates and limited stability hinders improvement. Metal clusters promising weak can be used as potential substitutions, but lack is considered undesirable for catalytic reactions. Herein, a framework Fe nanoclusters combined SAs on One dimensional (1D) carbon nanotubes (Fe

Abstract 1D magnetic fibers with significant morphological diversity and anisotropy are highly desirable for optimizing properties electromagnetic responsiveness. However, it remains challenging the precise control over internal interactions within each fiber. Herein, a strategy self‐assembled coupling is taken to achieve controllable reconstruction of continuous multiple networks single High‐density ultrafine cobalt nanoparticles uniformly embedded inside carbon framework multi‐channel...

It is very promising and challenging to construct a yolk–shell structure with highly efficient microwave absorption (MA) performance through simple fabrication process. Here, novel C/MnO@void@C (MCC) has been successfully synthesized by one-step calcination without additional processing. The as-obtained MCC composites tunable crystallinity degrees hollowness can be obtained treatment at various temperatures. treated 700 °C (MCC-700) show an impressive MA performance, the optimal reflection...