Quaternary Nanocomposites Consisting of Graphene, Fe3O4@Fe Core@Shell, and ZnO Nanoparticles: Synthesis and Excellent Electromagnetic Absorption Properties

2012 ◽  
Vol 4 (12) ◽  
pp. 6436-6442 ◽  
Author(s):  
Yu-Lan Ren ◽  
Hong-Yu Wu ◽  
Ming-Ming Lu ◽  
Yu-Jin Chen ◽  
Chun-Ling Zhu ◽  
...  
2015 ◽  
Vol 17 (4) ◽  
pp. 2531-2539 ◽  
Author(s):  
Biao Zhao ◽  
Gang Shao ◽  
Bingbing Fan ◽  
Wanyu Zhao ◽  
Rui Zhang

The core–shell Ni–SiO2 composite exhibits the best electromagnetic wave absorption in the GHz range with a minimum reflection loss of −40.0 dB, which is superior to those of Ni–TiO2 and Ni microspheres.


2015 ◽  
Vol 3 (41) ◽  
pp. 10862-10869 ◽  
Author(s):  
Biao Zhao ◽  
Gang Shao ◽  
Bingbing Fan ◽  
Wanyu Zhao ◽  
Shihao Zhang ◽  
...  

A core–shell ternary ZnS/Ni3S2@Ni composite exhibiting superior electromagnetic wave absorption properties was synthesized.


Nanoscale ◽  
2013 ◽  
Vol 5 (24) ◽  
pp. 12296 ◽  
Author(s):  
Yulan Ren ◽  
Chunling Zhu ◽  
Shen Zhang ◽  
Chunyan Li ◽  
Yujin Chen ◽  
...  

2017 ◽  
Vol 727 ◽  
pp. 204-210
Author(s):  
Xuan Zhong ◽  
Jing Wei Cheng ◽  
Ying Liu ◽  
Xiu Chen Zhao

Amorphous core-shell Fe-B@SiO2 submicrospheres with the SiO2 shell layer of about 18 nm were fabricated via a two-step process. Fe-B submicrospheres were first obtained, and core-shell Fe-B@SiO2 submicrospheres were subsequently fabricated using TEOs as a Si source through a modified Stöber method. The measurements of the magnetic properties demonstrated that the amorphous core-shell Fe-B@SiO2 submicrospheres exhibit ferromagnetic behavior at room temperature. The maximum reflection loss reaches −24.8 dB at 11.76 GHz for the absorber with thickness of 2.2 mm. The absorption bandwidth with the reflection loss below −10 dB is up to 14.76 GHz for the absorber with a thickness of 1.5-6 mm and the absorption bandwidth with the reflection loss below −20 dB is up to 6.6 GHz for the absorber with a thickness of 1.8-3.1 mm. Our results demonstrates that the amorphous core-shell Fe-B@SiO2 submicrospheres obtained in this work are attractive candidate materials for the magnetic and EM wave absorption applications.


Author(s):  
Abdulsalam Abuelsamen ◽  
Shahrom Mahmud ◽  
Noor Haida Mohd Kaus ◽  
Omar F. Farhat ◽  
Sabah M. Mohammad ◽  
...  

AIP Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 025207
Author(s):  
Jagriti Gupta ◽  
P. A. Hassan ◽  
K. C. Barick

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