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One-step synthesis of cobalt nanosheets depositing with carbon microsphere by microwave plasma assisted reduction chemical vapor deposition technique against electromagnetic pollution
Yi, Qiaojun1,2; Zhang, Feng1; Song, Yenan3; Wang, Xiao2; Zhang, Heng2; Li, Chaolong2; Piao, Mingxing2
2023-10-01
摘要The rational design of magnetic carbon composites in both composition and microstructure has significant potential for acquiring excellent electromagnetic wave absorbing materials (EAMs). In this study, Co@carbon magnetic composites were prepared by employing a novel microwave plasma assisted reduction chemical vapor deposition (MPARCVD) technique, which was highly efficient, low-cost, and energy-saving. The depositing of graphitized carbon microspheres on the surface of Co nanosheets could enrich the available loss mechanisms. Furthermore, the lamelliform morphology with a large aspect ratio of the composites was beneficial to subtly improve the dielectric properties under a low filler content. As a consequence, the minimum RL reached up to -65.7 dB and the radar cross-sectional area reduction attained to 22.3 dBm 2 with only 20 wt% loading content. The MARCVD technology opened a novel strategy and avenue for acquiring magnetic carbon composites as candidates for lightweight and high-performance EAMs.
关键词MPARCVD technique Co@CM composites Graphitized carbon microspheres Dielectric properties regulation Electromagnetic wave absorption
DOI10.1016/j.carbon.2023.118322
发表期刊CARBON
ISSN0008-6223
卷号214页码:11
通讯作者Piao, Mingxing(piaomx@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:001148135800001
语种英语