Enhancement of microwave absorption bandwidth of MXene nanocomposites through macroscopic design

Bora, PJ and Suresh Kumar, TR and Tan, DQ (2020) Enhancement of microwave absorption bandwidth of MXene nanocomposites through macroscopic design. In: Royal Society Open Science, 7 (8).

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Abstract

MXene, the new family of two-dimensional materials having numerous nanoscale layers, is being considered as a novel microwave absorption material. However, MXene/functionalized MXene-loaded polymer nanocomposites exhibit narrow reflection loss (RL) bandwidth (RL less than or equal to-10 dB). In order to enhance the microwave absorption bandwidth of MXene hybrid-matrix materials, for the first time, macroscopic design approach is carried out for TiO 2-Ti 3 C 2 T x MXene and Fe 3 O 4 @TiO 2-Ti 3 C 2 T x MXene hybrids through simulation. The simulated results indicate that use of pyramidal meta structure of MXene can significantly tune the RL bandwidth. For optimized MXene hybrid-matrix materials pyramid pattern, the bandwidth enhances to 3-18 GHz. Experimental RL value well matched with the simulated RL. On the other hand, the optimized Fe 3 O 4 @TiO 2-Ti 3 C 2 T x hybrid exhibits two specific absorption bandwidths (minimum RL value-47 dB). Compared with other two-dimensional nanocomposites such as graphene or Fe 3 O 4-graphene, MXene hybrid-matrix materials show better microwave absorption bandwidth in macroscopic pattern. © 2020 The Authors.

Item Type:	Journal Article
Publication:	Royal Society Open Science
Publisher:	Royal Society Publishing
Additional Information:	The copyright for this article belongs to the Author(S).
Keywords:	macroscopic design; MXene; MXene nanocomposites; reflection loss
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	13 Jan 2023 06:47
Last Modified:	13 Jan 2023 06:47
URI:	https://eprints.iisc.ac.in/id/eprint/79110

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