Abstract
High-performance microwave absorption (MA) materials must be studied immediately since electromagnetic pollution has become a problem that cannot be disregarded. A straightforward composite material, comprising hollow MXene spheres loaded with C-Co frameworks, was prepared to develop multiwalled carbon nanotubes (MWCNTs). A high impedance and suitable morphology were guaranteed by the C-Co exoskeleton, the attenuation ability was provided by the MWCNTs endoskeleton, and the material performance was greatly enhanced by the layered core-shell structure. When the thickness was only 2.04mm, the effective absorption bandwidth was 5.67GHz, and the minimum reflection loss (RLmin) was - 70.70dB. At a thickness of 1.861mm, the sample calcined at 700°C had a RLmin of - 63.25dB. All samples performed well with a reduced filler ratio of 15wt%. This paper provides a method for making lightweight core-shell composite MA materials with magnetoelectric synergy.
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