MWCNT/FeNi Composite Nanowires for Efficient Electromagnetic Wave Absorption on Microwave and Power Frequency

• Main Authors: YU Li-xin, LAN Xiao-lin, SHAO Feng, LIU Ting-an, ZHANG Shi-qi, WANG Zhi-jiang
• Format: Article
• Language: zho
• Published: Journal of Materials Engineering 2018-08-01
• Series: Journal of Materials Engineering
• Subjects: absorbing material; composite nanowire; electromagnetic absorption; power frequency
• Online Access: http://jme.biam.ac.cn/CN/Y2018/V46/I8/64

Nanosized FeNi particles were loaded along multiwalled carbon nanotubes (MWCNT) to achieve high performance to attenuate electromagnetic (EM) waves of 2-18GHz and power frequency (50Hz). The MWCNT/Ni was produced through the electroless plating method, then followed by a polyol approach to produce MWCNT/FeNi composite nanowires. The microstructure of MWCNT/FeNi composite nanowires was characterized by transmission electron microscopy, scanning electron microscope, X-ray diffraction and vector network analysis. The results show that the multi-component structure endows MWCNT/FeNi composite nanowires with effective EM absorption band (<i>R</i>_L<-10dB) covering the frequency range of 3.5-13.5GHz. Meanwhile, 76% electric field and 58% magnetic field are produced with the attenuation of 50Hz power frequency electromagnetic (EM) wave.