Abstract

Highlights

  • Non-magnetic bimetallic MOF-derived porous carbon-wrapped TiO2/ZrTiO4 composites are firstly used for efficient electromagnetic wave absorption.

  • The electromagnetic wave absorption mechanisms including enhanced interfacial polarization and essential conductivity are intensively discussed.

Modern communication technologies put forward higher requirements for electromagnetic wave (EMW) absorption materials. Metal–organic framework (MOF) derivatives have been widely concerned with its diverse advantages. To break the mindset of magnetic-derivative design, and make up the shortage of monometallic non-magnetic derivatives, we first try non-magnetic bimetallic MOFs derivatives to achieve efficient EMW absorption. The porous carbon-wrapped TiO2/ZrTiO4 composites derived from PCN-415 (TiZr-MOFs) are qualified with a minimum reflection loss of − 67.8 dB (2.16 mm, 13.0 GHz), and a maximum effective absorption bandwidth of 5.9 GHz (2.70 mm). Through in-depth discussions, the synergy of enhanced interfacial polarization and other attenuation mechanisms in the composites is revealed. Therefore, this work confirms the huge potentials of non-magnetic bimetallic MOFs derivatives in EMW absorption applications.

Details

Title
Non-Magnetic Bimetallic MOF-Derived Porous Carbon-Wrapped TiO2/ZrTiO4 Composites for Efficient Electromagnetic Wave Absorption
Author
Qiao Jing 1 ; Zhang, Xue 1 ; Liu, Chang 1 ; Lyu Longfei 1 ; Yang, Yunfei 1 ; Wang, Zhou 1 ; Wu, Lili 1 ; Liu, Wei 2 ; Wang Fenglong 1 ; Liu Jiurong 1 

 Shandong University, School of Materials Science and Engineering, Jinan, People’s Republic of China (GRID:grid.27255.37) (ISNI:0000 0004 1761 1174) 
 Shandong University, State Key Laboratory of Crystal Materials, Jinan, People’s Republic of China (GRID:grid.27255.37) (ISNI:0000 0004 1761 1174) 
Publication year
2021
Publication date
Jan 2021
Publisher
Springer Nature B.V.
ISSN
23116706
e-ISSN
21505551
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2619577930
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.