Promoting Electromagnetic Wave Absorption Performance by Integrating MoS<sub>2</sub>@Gd<sub>2</sub>O<sub>3</sub>/MXene Multiple Hetero‐Interfaces in Wood‐Derived Carbon Aerogels
Mengxia Shen, Jiale Qi, Xinyu Xu, Jinbao Li, Yongjian Xu, Hao Yang, Kun Gao, Jianfeng Huang, Jiayin Li, Zhen Shang, Yonghao Ni
Abstract
Abstract Multi‐component composite materials with a magnetic‐dielectric synergistic effect exhibit satisfactory electromagnetic wave absorption performance. However, the effective construction of the structure for these multi‐component materials to fully exploit the advantages of each component remains a challenge. Inspired by natural biomass, this study utilizes wood as the raw material and successfully prepares high‐performance MoS 2 @Gd 2 O 3 /Mxene loaded porous carbon aerogel (MGMCA) composite material through a one‐pot hydrothermal method and carbonization treatment process. With a delicate structural design, the MGMCA is endowed with abundant heterogeneous interface structures, favorable impedance matching characteristics, and a magnetic‐dielectric synergistic system, thus demonstrating multiple electromagnetic wave loss mechanisms. Benefiting from these advantages, the obtained MGMCA exhibits outstanding electromagnetic wave absorption performance, with a minimum reflection loss of −57.5 dB at an ultra‐thin thickness of only 1.9 mm. This research proposes a reliable strategy for the design of multi‐component composite materials, providing valuable insight for the design of biomass‐based materials as electromagnetic wave absorbers.