Multi‐interface engineering of FeS <sub>2</sub> /C/MoS <sub>2</sub> with core–shell structure for superior microwave absorption performance
Panpan Zhou, Chengyao Hu, Shilin Yuan, Jiancheng Zhao, Yawei Kuang, Han Gu, Yushen Liu, Lixi Wang, Qitu Zhang
Abstract
Abstract Heterojunction and morphology control assume a significant part in adjusting the intrinsic electromagnetic properties of absorbers to acquire outstanding microwave absorption (MA) performance, but this still faces huge challenges. Herein, FeS 2 /C/MoS 2 composite with core–shell structure was successfully designed and prepared via a multi‐interface engineering. MoS 2 nanosheets with 1T and 2H phases are coated on the outside of FeS 2 /C to form a porous interconnected structure that can optimize the impedance matching characteristics and strengthen the interfacial polarization loss capacity. Remarkably, as‐fabricated FCM‐3 harvests a broad effective absorption bandwidth (EAB) of 5.12 GHz and a minimum reflection loss (RL min ) value of −45.1 dB. Meanwhile, FCM‐3 can accomplish a greatest radar cross section (RCS) reduction value of 18.52 dB m 2 when the detection angle is 0°. Thus, the convenient computer simulation technology (CST) simulations and encouraging accomplishments provide a novel avenue for the further development of efficient and lightweight MA materials.