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

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*, Hua Hou, Jianfeng Zhu, Zhanhu Guo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 (EABmax) 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 (RLmin) 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.

Original languageEnglish
Article number175034
Pages (from-to)1-12
Number of pages12
JournalJournal of Alloys and Compounds
Volume999
Early online date31 May 2024
DOIs
Publication statusE-pub ahead of print - 31 May 2024

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