Hierarchical Co–C@PDA@BN/PAM composites: synergistic enhancement of microwave absorption and thermal conductivity through heterostructure design

The Co–C@PDA@BN/PAM gels show −55.3 dB minimum reflection loss at 9.4 GHz and 0.464 W m −1 K −1 thermal conductivity with a Co–C to BN ratio of 1 : 20. This work presents a novel composite for tailored thermal and electromagnetic applications.