MXene–modulated 3D crosslinking network of hierarchical flower–like MOF derivatives towards ultra–efficient microwave absorption property

2021 ◽  
Author(s):  
Hui-Ya Wang ◽  
Xiaobo Sun ◽  
Guang-Sheng Wang
Keyword(s):  
Microwave Absorption ◽  
High Efficiency ◽  
Microwave Absorption Property ◽  
Electromagnetic Properties ◽  
Absorption Property ◽  
Portable Electronics ◽  
Increasing Demand

Lightweight and high–efficiency microwave absorption materials with tunable electromagnetic properties still remain challenging to meet the increasing demand for portable electronics. In this work, MOF derivatives/MXene crosslinking networks were successfully...

The Influence of Fabrication Methods on Structure and Microwave Absorption Property of Fe3O4/rGO Composites

2018 ◽  
Vol 31 (9) ◽  
pp. 2841-2849 ◽  
Author(s):  
Xiaofeng Yang ◽  
Yan Niu ◽  
Qing Li ◽  
Zhiping Chen ◽  
Weizhou Jiao ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Microwave Absorption Property ◽  
Absorption Property

scholarly journals Enhanced Microwave Absorption and Electromagnetic Properties of Si-Modified rGO@Fe3O4/PVDF-co-HFP Composites

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 933 ◽  
Author(s):  
Yuexuan Li ◽  
Yugang Duan ◽  
Chengmeng Wang
Keyword(s):  
Microwave Absorption ◽  
Reflection Loss ◽  
High Efficiency ◽  
Vinylidene Fluoride ◽  
Synergistic Effects ◽  
Electromagnetic Properties ◽  
Absorption Mechanism ◽  
Simple Method ◽  
Absorption Frequency ◽  
Enhanced Absorption

Graphene has been regarded as one of the most promising two-dimensional nanomaterials. Even so, graphene was still faced with several key issues such as impedance mismatching and narrow bandwidth, which have hindered the practical applications of graphene-based nanocomposites in the field of microwave absorption materials. Herein, a series of Si-modified rGO@Fe3O4 composites were investigated and fabricated by a simple method. On one hand, the degree of defects in graphene carbon could be tuned by different silane coupling reagents, which were beneficial to enhancing the dielectric loss. On the other hand, the spherical Fe3O4 nanoparticles provided the magnetic loss resonance, which contributed to controlling the impedance matching. Subsequently, the electromagnetic absorption (EMA) properties of Si-modified rGO@Fe3O4 composites with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) were investigated in this work. As a result, the Si(2)-rGO@Fe3O4/PVDF-co-HFP composite exhibited the excellent EMA performance in the range of 2–18 GHz. The maximum reflection loss (RLmax) reached −32.1 dB at 3.68 GHz at the thickness of 7 mm and the effective absorption frequency bandwidth for reflection loss (RL) below −10 dB was 4.8 GHz at the thickness of 2 mm. Furthermore, the enhanced absorption mechanism revealed that the high-efficiency absorption performance of Si(2)-rGO@Fe3O4/PVDF-co-HFP composite was attributed to the interference absorption (quarter-wave matching model) and the synergistic effects between Si(2)-rGO@Fe3O4 and PVDF-co-HFP. This work provides a potential strategy for the fabrication of the high-performance EMA materials.

Effect of Misch-metal content on microwave absorption property of Ce2Co17 alloy

2020 ◽  
Vol 31 (14) ◽  
pp. 11204-11210
Author(s):  
Yong-he Liu ◽  
Shun-kang Pan ◽  
Li-chun Cheng ◽  
Jing-jing Yu ◽  
Lei Huang
Keyword(s):  
Microwave Absorption ◽  
Metal Content ◽  
Microwave Absorption Property ◽  
Absorption Property ◽  
Misch Metal

scholarly journals Microwave absorption property of coffee waste bio-carbon modified by industrial waste MnFe2O4 particles

2020 ◽  
Vol 9 (6) ◽  
pp. 12869-12879
Author(s):  
Ali Hassan ◽  
Wei Ding ◽  
Muhammad Adnan Aslam ◽  
Yuecheng Bian ◽  
Qiangchun Liu ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Industrial Waste ◽  
Microwave Absorption Property ◽  
Absorption Property ◽  
Coffee Waste

Preparation and microwave absorption property of graphene-supported CoFe2O4/Y3Fe5O12 nanocomposite

2016 ◽  
Vol 27 (8) ◽  
pp. 8177-8182 ◽  
Author(s):  
Ying Lin ◽  
Xiao Liu ◽  
Ting Ye ◽  
Haibo Yang ◽  
Fen Wang ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Microwave Absorption Property ◽  
Absorption Property
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