Ultrabroad Microwave Absorption Ability and Infrared Stealth Property of Nano-Micro CuS@rGO Lightweight Aerogels.
Composite aerogel
Microwave absorption
Radar cross section
Radar-infrared compatible stealth
Ultrabroad bandwidth
Journal
Nano-micro letters
ISSN: 2150-5551
Titre abrégé: Nanomicro Lett
Pays: Germany
ID NLM: 101727940
Informations de publication
Date de publication:
20 Aug 2022
20 Aug 2022
Historique:
received:
11
06
2022
accepted:
02
07
2022
entrez:
20
8
2022
pubmed:
21
8
2022
medline:
21
8
2022
Statut:
epublish
Résumé
Developing ultrabroad radar-infrared compatible stealth materials has turned into a research hotspot, which is still a problem to be solved. Herein, the copper sulfide wrapped by reduced graphene oxide to obtain three-dimensional (3D) porous network composite aerogels (CuS@rGO) were synthesized via thermal reduction ways (hydrothermal, ascorbic acid reduction) and freeze-drying strategy. It was discovered that the phase components (rGO and CuS phases) and micro/nano structure (microporous and nanosheet) were well-modified by modulating the additive amounts of CuS and changing the reduction ways, which resulted in the variation of the pore structure, defects, complex permittivity, microwave absorption, radar cross section (RCS) reduction value and infrared (IR) emissivity. Notably, the obtained CuS@rGO aerogels with a single dielectric loss type can achieve an ultrabroad bandwidth of 8.44 GHz at 2.8 mm with the low filler content of 6 wt% by a hydrothermal method. Besides, the composite aerogel via the ascorbic acid reduction realizes the minimum reflection loss (RL
Identifiants
pubmed: 35987861
doi: 10.1007/s40820-022-00906-5
pii: 10.1007/s40820-022-00906-5
pmc: PMC9392679
doi:
Types de publication
Journal Article
Langues
eng
Pagination
171Informations de copyright
© 2022. The Author(s).
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