@article{Xu2023, 
author = {Jingshen Xu and Na Lu and Mengwei Yuan and Genban Sun},
title = {Rational design of hollow rice-grained α-Fe2O3/carbon nanofibers with optimized impedance matching for electromagnetic wave absorption enhanced},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {4},
pages = {5676-5684},
keywords = {electromagnetic wave absorption, Fe-based, carbon nanofibers, impedance matching},
url = {https://www.sciopen.com/article/10.1007/s12274-022-5178-5},
doi = {10.1007/s12274-022-5178-5},
abstract = {Electromagnetic wave absorption materials are widely used in electronic equipment and military fields. However, high cost and complex preparation processes become a major obstacle in promoting popularization in the civil field. To solve the problems above, researchers have made great efforts to develop Fe-based carbon composites. However, most of the typical composites require a high filling ratio while achieving excellent properties. Therefore, in this study, carbon nanofibers (CNFs) combined with the hollow rice-grained α-Fe2O3 nanoparticles were prepared by the in-situ transformation method. The rational microstructure design provided a solution for reducing the filling ratio, optimizing impedance matching, and improving electromagnetic wave absorption performance. The strong reflection loss value (−38.1 dB) and broad effective absorption bandwidth (4.6 GHz) for Fe2O3/CNFs composites were achieved with a low filling ratio (20 wt.%), and the analysis of electromagnetic parameters validated that the microstructure of Fe2O3/CNFs plays a crucial role in the performance improvement. With the optimized impedance matching and simple preparation method, Fe2O3/CNFs have broad application prospects in electromagnetic wave absorption.}
}