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

Abstract

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 (RL<-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.

Keywords

• absorbing material
• composite nanowire
• electromagnetic absorption
• power frequency