Synergistic 2D structure design and high-entropy engineering in MnFeCoNiCu nanoalloy/carbon nanosheet composite to optimize impedance matching for high-attenuation microwave absorption

This work synthesizes MnFeCoNiCu high-entropy nanoalloy/carbon sheet composites via self-foaming and carbothermal shock for microwave absorption. The composite exhibits excellent impedance matching and a minimum reflection loss of −54.4 dB.