scholarly journals Enhanced microwave absorption of biomass carbon/nickel/polypyrrole (C/Ni/PPy) ternary composites through the synergistic effects

2022 ◽  
Vol 890 ◽  
pp. 161887
Author(s):  
Qiuyue Wang ◽  
Xiaofen Wu ◽  
Ji Huang ◽  
Siyi Chen ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Synergistic Effects ◽  
Biomass Carbon

Tuning the microwave absorption capacity of TiP2O7 by composited with biomass carbon

2020 ◽  
Vol 515 ◽  
pp. 145974 ◽  
Author(s):  
Qiang Huang ◽  
Chongzhuo Bao ◽  
Qiuyue Wang ◽  
Chengjun Dong ◽  
Hongtao Guan
Keyword(s):  
Microwave Absorption ◽  
Absorption Capacity ◽  
Biomass Carbon

The synergistic effects of carbon coating and micropore structure on the microwave absorption properties of Co/CoO nanoparticles

2016 ◽  
Vol 18 (44) ◽  
pp. 30507-30514 ◽  
Author(s):  
Xiubo Xie ◽  
Yu Pang ◽  
Hiroaki Kikuchi ◽  
Tong Liu
Keyword(s):  
Microwave Absorption ◽  
Vapor Deposition ◽  
Carbon Coating ◽  
Synergistic Effects ◽  
Impedance Matching ◽  
Chemical Vapor ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Micropore Structure ◽  
Coo Nanoparticles

Microporous Co/CoO/C nanoparticles prepared by combining chemical dealloying and chemical vapor deposition methods exhibited high microwave absorption properties due to the synergistic effects of the carbon coating and the micropore structure on the impedance matching of the absorber.

scholarly journals Biomass carbon derived from pine nut shells decorated with NiO nanoflakes for enhanced microwave absorption properties

RSC Advances ◽  
2019 ◽  
Vol 9 (16) ◽  
pp. 9126-9135 ◽  
Author(s):  
Huiya Wang ◽  
Yanlin Zhang ◽  
Qiuyue Wang ◽  
Chaowei Jia ◽  
Pan Cai ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Carbon Composites ◽  
Biomass Carbon ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Pine Nut

A facile strategy was applied to synthesize NiO/biomass carbon composites with excellent microwave absorption properties.

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.

Preparation and microwave absorption properties of magnetic functional porous biomass carbon composites

Carbon ◽  
2020 ◽  
Vol 158 ◽  
pp. 931
Author(s):  
Qi-xin Yang ◽  
Lu-jun Yu ◽  
Yu-bing Dong ◽  
Ya-qin Fu ◽  
Yao-feng Zhu
Keyword(s):  
Microwave Absorption ◽  
Carbon Composites ◽  
Biomass Carbon ◽  
Absorption Properties ◽  
Microwave Absorption Properties

Synthesis of Hollow Rod-like Hierarchical Structures Assembled by CoFe/C Nanosheets for Enhanced Microwave Absorption

2021 ◽  
Author(s):  
Susu Bao ◽  
Zhijia Song ◽  
Runjing Mao ◽  
Yue Li ◽  
Shuhong Zhang ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Synergistic Effects ◽  
Hierarchical Structures ◽  
Interfacial Polarization ◽  
Ferromagnetic Metal ◽  
Hybrid Structures

Composites of ferromagnetic metal and carbon with hierarchical structures are favoured for strengthening microwave absorption capability due to synergistic effects of hybrid structures and enhanced interfacial polarization. However, it remains...

Microwave absorption performance of Ni(OH)2 decorating biomass carbon composites from Jackfruit peel

2018 ◽  
Vol 447 ◽  
pp. 261-268 ◽  
Author(s):  
Hongtao Guan ◽  
Huiya Wang ◽  
Yanlin Zhang ◽  
Chengjun Dong ◽  
Gang Chen ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Carbon Composites ◽  
Biomass Carbon ◽  
Absorption Performance ◽  
Microwave Absorption Performance
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