Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 892, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.162194
Keywords
Lightweight; Self-assembly; 3D hierarchically porous; Ti3C2Tx MXene
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Funding
- Natural Science Foundation of Zhejiang Province, China [LY19E030009]
- National Natural Science Foundation of China (NSFC) [51503183]
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The study prepared 3D hierarchically porous Ti3C2Tx MXene@polyaniline hybrids via self-assembly process, showing excellent microwave absorption performance and providing an efficient design strategy for microwave absorption.
The construction of three-dimensional (3D) hierarchically porous nanostructures is an effective micro structural design strategy for the fabrication of lightweight electromagnetic wave (EMW) absorption materials. In this work, 3D hierarchically porous Ti3C2Tx MXene@polyaniline (PANI) hybrids are prepared via a self-assembly process. The as-prepared hybrids possess excellent microwave absorption performance with the minimum reflection loss (RLmin) of the optimal Ti3C2Tx MXene@PANI hybrid reaching - 53.79 dB at 12.67 GHz with a thickness of 1.33 mm and a loading amount of 10 wt% in paraffin. The light weight and high-efficiency microwave absorption properties of the hybrids result from their 3D hierarchically porous structure and well-matched impedance characteristics, which provide multiple reflection channels and loss mechanisms for incident EMWs. This strategy offers a rational, simple and practical design approach for high-performance MXene-based EMW absorbers. (C) 2021 Elsevier B.V. All rights reserved.
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