Alkali and ion exchange co-modulation strategies to design magnetic–dielectric synergistic nano-absorbers for tailoring microwave absorption

Versatile chewed gum composites with liquid metal for strain sensing, electromagnetic interference shielding and flexible electronics

“…Liquid metals (e.g., EGaIn, Ga/In at 75 : 25 wt/wt) with good fluidity and high electrical and thermal conductivity, have been utilized in flexible electronics and sensors and as electromagnetic interference-shielding materials. [22][23][24][25][26] However, leakage resulting from their good fluidity can lead to serious risks of short-circuiting and corrosion, 22 which pose great challenges during handling and processing. Besides, the ultrahigh surface tension of liquid metals (i.e., 624 mN m À1 for EGaIn) makes it difficult to achieve a stable interface of the liquid metal with other materials (e.g., composite matrix, patterning substrates).…”

Kinetics-mediated assembly assisted precise synthesis of magnetic ordered mesoporous carbon nanospheres for ultra-efficient electromagnetic wave absorption

“…5a, the ε ′ values of each sample delivered a downward tendency as the frequency increased from 2 to 18 GHz, which was attributed to the typical frequency dispersion behavior in carbon-based EMWAMs. 80,81 Considering the small size effect, the conductivity of the Ni nanoparticles could be negligible, namely, the conductivity of these composites was absolutely attributed to the carbon content. Thus, the ε ′ values of Ni/OMCN-D and Ni/OMCN-S were less than those of OMCN-D and OMCN-S due to the introduction of Ni nanoparticles.…”

“…5e and f). 80–83 The eddy current effect can be further analysed according to the C 0 value ( μ ′′( μ ′) − 2 f − 1). 84 In general, the C 0 value would be constant when the eddy current effect is responsible for magnetic loss.…”

Co/CeO2/C composites derived from bimetallic metal–organic frameworks for efficient microwave absorption

“…To solve this issue, researchers have made many explorations and attempts. [9][10][11] CeO 2 , an n-type semiconductor material, has been widely used in popular energy and environmental fields and other comprehensive research topics. [12][13][14][15][16] Recently, studies on CeO 2 being used in MA materials have become increasingly popular.…”