@article{Su2023, 
author = {Junhua Su and Qinbo Ma and Longkun Que and Hunan Jiang and Xiaoling Xu and Yong Wang and Yifan Guo and Zuowan Zhou},
title = {Multi-componential metal intercalated graphite hybrids synthesized by co-intercalation polymerization towards high-efficient microwave absorptions},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {5},
pages = {6369-6379},
keywords = {microwave absorption, transition metal, expanded graphite, co-intercalation, intercalation polymerization},
url = {https://www.sciopen.com/article/10.1007/s12274-023-5483-7},
doi = {10.1007/s12274-023-5483-7},
abstract = {Magnetic expanded graphite (EG) hybrids were synthesized by co-intercalation polymerization of aniline together with transition metal ions. Experimental results show that metal ions (Fe, Co, Ni, and Cu) and even their mixtures can co-intercalate into graphite interlayers with flexibly controllable ratios and contents. Among these co-intercalation compounds, Fe/Ni-intercalated graphite with a predesigned mole ratio of 1:3 transforms into NiFe2O4/FeNi3@EG during the annealing process. The synthesized magnetic EG hybrids present multiband microwave absorption in C and X bands due to improved impedance match as well as significantly enhanced interfacial polarization relaxation induced by multi-componential metals. The reflection values of −39.1 dB at 6.95 GHz and −25.7 dB at 9.4 GHz are achieved with an ultra-low loading of 5 wt.%. This work provides a flexible approach for tuning the components and structures of magnetic EG hybrids, which may contribute to the development of microwave absorption materials with superior performances.}
}