材料科学
反射损耗
聚丙烯腈
MXenes公司
介电损耗
复合材料
电介质
复合数
吸收(声学)
光电子学
纳米技术
聚合物
作者
Ning Chen,Shaohua Wei,Yongjun Feng,Shui Hu,Ying Tang,Wenqiang He,Yabin Zhang,Ding Cao,Zhifeng Fu
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2023-06-15
卷期号:6 (13): 11013-11022
被引量:1
标识
DOI:10.1021/acsanm.3c00746
摘要
Electromagnetic absorbing materials (EMAs) are materials that irreversibly convert electromagnetic waves into another type of energy. With the development of communication technology, electromagnetic absorption materials have broad prospects in smart phones, wearable devices, and aerospace. MXenes have excellent dielectric loss properties, and the synthesis and application of MXene functional materials with magnetic properties will be one of the hotspots and focuses of future research. In this study, magnetic Co-Ti3C2Tx MXenes were prepared by molten salt etching, and Co-Ti3C2Tx/Fe2O3/polyacrylonitrile (PAN) hollow fiber composites with double-loss capability were prepared by coaxial electrospinning technology. The maximum reflection loss of the Co-Ti3C2Tx/Fe2O3/PAN hollow fiber can reach −54.62 dB at 9.86 GHz, and the effective absorption bandwidth is 6.39 GHz. The Co-Ti3C2Tx/Fe2O3/PAN hollow fibers with excellent electromagnetic absorption capability exhibit potential for efficient EMA materials due to their synergistic effect of impedance matching and magnetic/dielectric loss.
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