Perspectives of nitrogen-doped carbons for electromagnetic wave absorption

With the flourishing development of advanced wireless technology, the situation of electromagnetic pollution and interference is becoming increasingly severe. The research and development of efficient electromagnetic wave absorption materials is extraordinary beneficial for solving these disgusting issues. Nitrogen (N)-doped carbons have shown great advantages as absorbents, such as lightweight, high surface area, excellent hydrophilicity, unique electronic properties, etc. Herein, we provide a perspective on state-of-art advances and challenges of N-doped carbons based absorbents. The effect of N-doping on the electromagnetic wave (EWs) response are dissected from the N-configurations and concentrations, which are of significant importance in understanding of electromagnetic response. And then we center the regulation of the N-doped carbon in the EWs responses by combing the eye-catching advances in N-doped carbon based EWs absorbing nano-materials from constituents and nanostructures. Finally, the outlook and challenges of N-doped carbons as absorbents for future research are proposed.