Fish bone‑derived interconnected carbon nanofibers for efficient and lightweight microwave absorption

摘要

In this work, we demonstrated a simple method for preparing three-dimensional interconnected carbon nanofibers(ICNF) derived from fish bone as an efficient and lightweight microwave absorber. The as-obtained ICNF exhibits excellentmicrowave absorption performance with a maximum reflection loss of –59.2 dB at the filler content of 15 wt%. Inaddition, the effective absorption bandwidth can reach 4.96 GHz at the thickness of 2 mm. The outstanding microwaveabsorption properties can be mainly ascribed to its well-defined interconnected nanofibers architecture and the dopingof nitrogen atoms, which are also better than most of the reported carbon-based absorbents. This work paves an attractiveway for the design and fabrication of highly efficient and lightweight electromagnetic wave absorbers.