A hierarchical SiCnw@SiC aerogel decorated with Ni-capped carbon nanotubes toward high-performance electromagnetic wave absorber

被引：15

作者：

He, Jun ^{[1
,2
]}

Zhang, Yanwei ^{[1
]}

Zhou, Kechao ^{[1
]}

Yang, Haitang ^{[1
]}

Luo, Heng ^{[3
]}

Li, Yang ^{[1
]}

机构：

[1] Cent South Univ, Powder Met Res Inst, Changsha 410083, Peoples R China

[2] Hunan Inst Engn, Sch Computat Sci & Elect, Xiangtan 411104, Peoples R China

[3] Cent South Univ, Sch Phys & Elect, Changsha 410083, Peoples R China

来源：

RESULTS IN PHYSICS | 2023年 / 49卷

基金：

中国国家自然科学基金;

关键词：

SiC aerogel; Ni nanoparticles; Carbon nanotubes; Hierarchical microstructure; Microwave absorption; MICROWAVE-ABSORPTION PROPERTIES; NANOPARTICLES; CERAMICS; BIOMASS; FOAM;

D O I：

10.1016/j.rinp.2023.106500

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Increasing attention has been paid to the regulation of electromagnetic parameters by reasonable micromorphological design and proper composition to realize high-performance electromagnetic wave absorbers. Herein, a unique hierarchical SiC nanowire-reinforced SiC aerogel decorated with Ni-capped carbon nanotubes (SiCnw@SiC-Ni@CNT) was constructed. The effective synergism between the combination of multiphase magnetic/dielectric materials and the introduction of specific 3D hierarchical microstructures is beneficial for the apparent improvement of multiple dielectric/magnetic losses, electromagnetic scattering effects, and impedance matching capabilities, exhibiting remarkable tunable microwave absorption performance. Accordingly, a strong microwave absorption intensity (RLmin) at 10.24 GHz of -47.75 dB with a loading of 20 wt% and an ultrawide effective absorption bandwidth (EAB, RL < -10 dB) of 8.96 GHz (9.04-18.0 GHz) at only 30 wt% filler loading and thin 2.0 mm thickness are realized. This work provides valuable guidance for the design of multiphase magnetic/dielectric absorbers with hierarchical microstructures and extends the study of advanced microwave absorption materials with the advantages of light weight, minimal thickness, strong RL and broad EAB.

引用

页数：10

共 46 条

[1] Flexible and recoverable SiC nanofiber aerogels for electromagnetic wave absorption [J].

An, Zhimin ;

Ye, Changshou ;

Zhang, Rubing ;

Zhou, Peng .

CERAMICS INTERNATIONAL, 2019, 45 (17) :22793-22801

[2] Defect reconstructions in graphene for excellent broadband absorption properties with enhanced bandwidth [J].

Bhattacharyya, Rajarshi ;

Singh, Vivek Kumar ;

Bhattacharyya, Somak ;

Maiti, Pralay ;

Das, Santanu .

APPLIED SURFACE SCIENCE, 2021, 537 (537)

[3] Hierarchically assembled carbon microtube@SiC nanowire/Ni nanoparticle aerogel for highly efficient electromagnetic wave absorption and multifunction [J].

Cai, Zhixin ;

Su, Lei ;

Wang, Hongjie ;

Xie, Qiang ;

Gao, Hongfei ;

Niu, Min ;

Lu, De .

CARBON, 2022, 191 :227-235

[4] Nickel/Nickel phosphide composite embedded in N-doped carbon with tunable electromagnetic properties toward high-efficiency microwave absorption [J].

Chen, Fu ;

Luo, Hui ;

Cheng, Yongzhi ;

Guo, Rundong ;

Yang, Wentao ;

Wang, Xian ;

Gong, Rongzhou .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2021, 140

[5] Fabrication of macroporous magnetic carbon fibers via the cooperative etching-electrospinning technology toward ultra-light microwave absorption [J].

Chen, Jianxin ;

Wang, Yiruo ;

Liu, Yufei ;

Tan, Ye ;

Zhang, Jia ;

Liu, Panbo ;

Kong, Jie .

CARBON, 2023, 208 :82-91

[6] Rational design of hierarchical yolk-double shell Fe@NCNs/MnO2 via thermal-induced phase separation toward wideband microwave absorption [J].

Chen, Jianxin ;

Wang, Yiruo ;

Gu, Zimo ;

Huang, Jixing ;

He, Wenjuan ;

Liu, Panbo .

CARBON, 2023, 204 :305-314

[7] Magnetic Energy Morphing, Capacitive Concept for Ni0.3Zn0.4Ca0.3Fe2O4 Nanoparticles Embedded in Graphene Oxide Matrix, and Studies of Wideband Tunable Microwave Absorption [J].

Dey, Chandi Charan ;

Sadhukhan, Sukhendu ;

Mitra, Ayan ;

Dalal, Madhumita ;

Shaw, Anirban ;

Bajorek, Anna ;

Chakrabarti, Pabitra K. .

ACS APPLIED MATERIALS & INTERFACES, 2021, 13 (39) :46967-46979

[8] β-SiC/AlN microwave attenuating composite ceramics with excellent and tunable microwave absorption properties [J].

Fang, Xia ;

Jiang, Senchuan ;

Pan, Limei ;

Yin, Shuang ;

Qiu, Tai ;

Yang, Jian ;

Li, Xiaoyun .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2021, 41 (13) :6385-6392

[9] Coal gasification fine slag residual carbon decorated with hollow-spherical Fe3O4 nanoparticles for microwave absorption [J].

Gao, Shengtao ;

Zhang, Yuanchun ;

He, Jun ;

Zhang, Xingzhao ;

Jiao, Facun ;

Liu, Tao ;

Li, Hanxu ;

Wu, Chengli ;

Ma, Mingliang .

CERAMICS INTERNATIONAL, 2023, 49 (11) :17554-17565

[10] Synthesis of hollow ZnFe2O4/residual carbon from coal gasification fine slag composites for multiband electromagnetic wave absorption [J].

Gao, Shengtao ;

Zhang, Yuanchun ;

Zhang, Xingzhao ;

Jiao, Facun ;

Liu, Tao ;

Li, Hanxu ;

Bai, Yonghui ;

Wu, Chengli .

JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 952

← 1 2 3 4 5 →