MOF structure engineering to synthesize accordion-like nitrogen doped carbon for enhanced microwave absorption

Accordion-like nitrogen-doped carbon was synthesized through MOF structural engineering, unlocking the full microwave attenuation potential of the material and achieving ultra-efficient microwave absorption performance. By modulating the structure of the ZIF precursors, better impedance matching and more interfacial polarisation is achieved in their derived carbon materials. As a result, the product has a minimum reflection loss of − 45.2 dB at 2.0 mm and an absorption bandwidth of 5.52 GHz at 2.1 mm, exhibiting an excellent specific reflection loss compared to the vast majority of previous absorbers derived from MOFs.