材料科学
多孔性
电介质
腐蚀
异质结
极化(电化学)
碳纤维
化学工程
纳米技术
光电子学
复合材料
化学
工程类
复合数
物理化学
作者
Xiaoke Lu,Xin Li,Wenjie Zhu,Hailong Xu
出处
期刊:Carbon
[Elsevier]
日期:2022-05-01
卷期号:191: 600-609
被引量:40
标识
DOI:10.1016/j.carbon.2022.01.050
摘要
To improve multiple heterointerface coupling efficiencies and efficiently engineer the pore structure of porous carbon, a kind of magnetic cobalt nanoparticles embedded porous carbon framework, derived from economical biomass, was designed in the present study. The resulting magnetic embedded porous carbon framework showed exceptional dielectric responses and a significant polarization effect because of the higher contact surface utilization than the ordinary loaded structure. The effective absorbing bandwidth covers 6.6 GHz with a thickness of 2.3 mm, indicating its capacity to address the increasingly problematic electromagnetic (EM) pollution issue. Meanwhile, the magnetic embedded structure with the carbon framework could protect the embedded particles from common corrosion issues, even after a long time environmental adaptability assessment in the lab and faintly acid condition. This work highlights a potential strategy for the design and synthesis of high-performance carbonaceous EM absorbers.
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