C-dots induced microwave absorption enhancement of PANI/ferrocene/C-dots

PANI/ferrocene/C-dots nanocomposite with a prominent microwave absorption property was synthesized by in situ polymerization of PANI/ferrocene and then incorporation of C-dots. The results of 1H NMR and fluorescence spectra indicate that ferrocene has doped into backbone of PANI while C-dots combined with PANI and ferrocene via π-π interactions. The microwave absorption of PANI/ferrocene/C-dots is remarkably enhanced compared to those of PANI and PANI/ferrocene due to the inclusion of C-dots with very small size and thus high ratio of surface atomic and interfacial polarization.