UM  > INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Affiliated with RCfalse
Status已發表Published
Nitrogen-doped and Fe-filled CNTs/NiCo2O4 porous sponge with tunable microwave absorption performance
Qingmei Hu1; Rongliang Yang1; Zichao Mo1; Dongwei Lu1; Leilei Yang1; Zhongfu He1; Hai Zhu2; Zikang Tang3; Xuchun Gui1
2019-07-22
Source PublicationCarbon
ISSN0008-6223
Volume153Pages:737-744
Abstract

Lightweight, highly efficient, thermal stable microwave absorption materials are highly desirable but challenging for electromagnetic protection. Impedance matching and electromagnetic loss are two crucial factors for the microwave absorption materials design. Here, we successfully designed and synthesized a lightweight (31.5 mg/cm3) and porous NiCo2O4@carbon nanotubes (CNTs) hybrid sponge (NiCo2O4@CNTs) based on N-doped and Fe-filled CNTs. The as-prepared NiCo2O4@CNTs shows high thermal stability (>500 °C) and excellent microwave absorption properties with a minimum reflection loss value of - 45.1 dB at 9.0 GHz for absorber thickness of 2.5 mm. Moreover, the maximum absorption peak frequency and effective microwave absorption region (<10 dB) can be controlled in the range of 4.0–16.0 GHz by varying the thickness of the absorber. The highly efficient electromagnetic absorption performance of the sponge is mainly attributed to the high dipolar polarization, interfacial polarization loss and suitable impedance matching characteristic. These results indicate that the NiCo2O4@CNTs sponge can serve as the lightweight, highly efficient, and high temperature resistant microwave absorption materials.

KeywordCnts Nico2o4 Dielectric Loss Microwave Absorption
DOI10.1016/j.carbon.2019.07.077
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000485054200084
PublisherPERGAMON-ELSEVIER SCIENCE LTD; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Scopus ID2-s2.0-85069841017
Fulltext Access
Citation statistics
Cited Times [WOS]:94   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorXuchun Gui
Affiliation1.State Key Laboratory of Optoelectronic Materials and Technologies,School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou,510275,China
2.State Key Laboratory of Optoelectronic Materials and Technologies,School of Physics,Sun Yat-Sen University,Guangzhou,510275,China
3.Institute of Applied Physics and Materials Engineering,University of Macau,Avenida da Universidade,Taipa,China
Recommended Citation
GB/T 7714
Qingmei Hu,Rongliang Yang,Zichao Mo,et al. Nitrogen-doped and Fe-filled CNTs/NiCo2O4 porous sponge with tunable microwave absorption performance[J]. Carbon,2019,153:737-744.
APA Qingmei Hu,Rongliang Yang,Zichao Mo,Dongwei Lu,Leilei Yang,Zhongfu He,Hai Zhu,Zikang Tang,&Xuchun Gui.(2019).Nitrogen-doped and Fe-filled CNTs/NiCo2O4 porous sponge with tunable microwave absorption performance.Carbon,153,737-744.
MLA Qingmei Hu,et al."Nitrogen-doped and Fe-filled CNTs/NiCo2O4 porous sponge with tunable microwave absorption performance".Carbon 153(2019):737-744.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Qingmei Hu]'s Articles
[Rongliang Yang]'s Articles
[Zichao Mo]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qingmei Hu]'s Articles
[Rongliang Yang]'s Articles
[Zichao Mo]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qingmei Hu]'s Articles
[Rongliang Yang]'s Articles
[Zichao Mo]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.