@article{Pan2023, 
author = {Yuelei Pan and Qianqian Zhu and Jiahui Zhu and Yuhang Cheng and Bowen Yu and Zirui Jia and Guanglei Wu},
title = {Macroscopic electromagnetic synergy network-enhanced N-doped Ni/C gigahertz microwave absorber with regulable microtopography},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {7},
pages = {10666-10677},
keywords = {morphology control, dielectric loss, magnetic loss, electromagnetic wave absorption, magnetic metal-carbon binary composition},
url = {https://www.sciopen.com/article/10.1007/s12274-023-5687-x},
doi = {10.1007/s12274-023-5687-x},
abstract = {To achieve excellent electromagnetic wave (EMW) absorption properties, the microstructure design of the absorber is critical. In this work, six kinds of N-Ni/C nanostructures with different morphologies were prepared by one-step hydrothermal method and high temperature carbonization by adjusting the types of nickel salts and reaction solvents. The EMW absorption performance of six different morphologies of N-Ni/C nanostructures was compared and analyzed. Among them, it is found that the nanoflower-like N-Ni/C composite has excellent dielectric loss and magnetic loss synergistic effect due to its polycrystalline structure, and can obtain excellent EMW absorption performance. The minimum reflection loss value at a thickness of 1.9 mm is −59.56 dB at 16.88 GHz, and the effective absorption bandwidth value reaches 6.0 GHz at a thickness of 2.2 mm. Our research shows that different morphologies and multiple lattice structures of nanostructures with the same composition have a significant influence on EMW absorption performance, which provides new research ideas for developing high-performance EMW absorbing materials.}
}