Hollow-magnetite/MXene nanohybrids with unique coral-like structure for electromagnetic wave absorption

Published: 2024

Author(s):

Jiang Guo
Xinyi Zhao
Zhuoran Chen
Manal F. Abou Taleb
Mohamed M. Ibrahim
Zeinhom M. El-Bahy
Juanna Ren
Wenling Wu
Yingxin Zhang
Evan K. Wujcik h i
Hua Hou f
Jianfeng Zhu
Zhanhu Guo

Publication Name: Journal of Alloys and Compounds

Publication URL: https://doi.org/10.1016/j.jallcom.2024.175034

Research Area:

Material Development & Characterization

Keywords:

Abstract:

The novel hollow-magnetite (HFO)/MXene nanohybrids with coral-like structure were successfully prepared via templating and electrostatic self-assembly techniques for electromagnetic (EM) wave adsorption application. The unique coral-like structure of the prepared HFO/MXene hybrids was characterized by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). When mass ratio of HFO to MXene is 2:1, the maximum effective absorption bandwidth (EAB_max) of HFO/MXene hybrids is able to reach 5.36 GHz. Moreover, when mass ratio of HFO to MXene is 1:1, the minimum reflection loss (RL_min) even achieves −42.48 dB with a thickness of 3.1 mm. The excellent EM absorption performance of HFO/MXene hybrids is mainly due to the ideal impedance matching and synergistic effect of magnetic loss and dielectric loss caused by unique coral-like structure. This work provides unexplored areas in the design of the spatial structure of MXene for microwave absorption.