UM
Lightweight, three-dimensional carbon Nanotube@TiO 2 sponge with enhanced microwave absorption performance
Mo Z.1; Yang R.1; Lu D.1; Yang L.1; Hu Q.1; Li H.2; Zhu H.1; Tang Z.3; Gui X.1
2019-04-01
Source PublicationCarbon
ISSN00086223
Volume144Pages:433-439
AbstractPorous, spongy absorbers are considered to be the most promising candidates for lightweight and highly efficient microwave absorption material. However, conventional sponges or foams reported previously are difficult to meet the high performance requirements. Here, a lightweight (42 mg/cm ), porous CNT@TiO sponge with core-shell structure CNT/TiO was successfully prepared via a simple combination of hydrolysis and heat treatment method. In the sponge, the thickness and crystal structure of the TiO shell layer, and the mass fraction of TiO and CNTs can be precisely controlled by the growth processes, resulting in adjustable dielectric loss properties of the samples. With the optimized component proportion, it was found that a minimum reflection loss value of −31.8 dB was observed at 10.35 GHz, and reflection loss exceeds −10 dB is up to 2.76 GHz for the absorber with the thickness of 2 mm. Moreover, the effective microwave absorption (<10 dB) can be achieved in the range of 3.43–12.0 GHz by adjusting the thickness of the absorber. These results indicate that the CNT@TiO sponges can serve as attractive candidate materials for lightweight microwave absorption materials.
KeywordCNTs Core-shell Dielectric loss Microwave absorption TiO 2
DOI10.1016/j.carbon.2018.12.064
URLView the original
Language英語
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Cited Times [WOS]:5   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Sun Yat-Sen University
2.National Center for Nanoscience and Technology Beijing
3.Universidade de Macau
Recommended Citation
GB/T 7714
Mo Z.,Yang R.,Lu D.,et al. Lightweight, three-dimensional carbon Nanotube@TiO 2 sponge with enhanced microwave absorption performance[J]. Carbon,2019,144:433-439.
APA Mo Z..,Yang R..,Lu D..,Yang L..,Hu Q..,...&Gui X..(2019).Lightweight, three-dimensional carbon Nanotube@TiO 2 sponge with enhanced microwave absorption performance.Carbon,144,433-439.
MLA Mo Z.,et al."Lightweight, three-dimensional carbon Nanotube@TiO 2 sponge with enhanced microwave absorption performance".Carbon 144(2019):433-439.
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