Multicomponent Schiff base/MWCNTs/FeCl3 composite: Facile synthesis and strong absorption properties

Aliphatic Schiff base/MWCNTs/FeCl3 (APSMF) and aromatic Schiff bases/MWCNTs/FeCl3 (AMSMF) hybrids were synthesized by in-situ polymerization with the purpose to fabricate a multicomponent absorbent. which composed of organic-metal ion complexes (OMIC) and carbon material with 3D heterogeneous network. The excellent electromagnetic wave (EMW) absorbing performance derived from the synergy effects generated by triple dielectric relaxation, and well-matched characteristic impedance. Furthermore, the minimum RL value of this absorbent is up to −70.76 dB at 12.34 GHz with the thickness of 2.6 mm. This new multicomponent absorbent composed of OMIC and carbon material may pave the way for OMIC-derived materials as a promising electromagnetic absorbing materials (EAM).