Design and Performance Regulation of MOFs-derived Carbon Composites for Electromagnetic Wave Absorption

It is of great significance to develop lightweight and efficient electromagnetic wave (EMW) absorption materials to counter the problems of electromagnetic interference, information security and national defense security. In recent years,nanoporous carbon composites derived from metal-organic frameworks (MOFs) have gained numerous attentions in the field of EMW absorption. Benefited from the highly adjustable pore structures and the tailored components and microstructures of MOFs, the in-situ generated metallic microwave absorption units in carbon matrix result in rich interfaces as well as compositions. Together with the cross-linked conductive network, the microwave loss mechanisms can be greatly enriched,leading to enhanced EMW absorption capability. The rational design of various components and the controllable construction of microstructures are the key to regulate the electromagnetic parameters. The rational design and performance regulation strategy of MOFs-derived carbon-based EMW absorbers in recent years are reviewed regarding incorporated metal types and spatial arrangement, heterogeneous structure of MOFs and porous structure of carbon matrix. Finally, the challenges and perspectives of MOFs-derived carbon composites in the application of EMW absorption are also presented.