We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Hydrothermal synthesis of nitrogen-doped graphene as lightweight and high-efficient electromagnetic wave absorbers.
- Authors
Feng, Wei; Zhou, You; Xing, Hongna; Chang, Shuai; Feng, Juan; Shi, Zhenhua; Zong, Yan; Zhu, Xiuhong; Li, Xinghua; Zheng, Xinliang
- Abstract
Exploring lightweight electromagnetic wave absorption materials is urgently needed to satisfy the miniaturization and integration of artificial intelligence and 5G technologies. Herein, nitrogen-doped graphene (N-GN) is successfully fabricated through a simple hydrothermal method, which can float in the water. Except for keeping the sheet-like structure of GO, nitrogen-doped graphene shows a reticular-like structure with more wrinkles and crinkles, which is crossed and interconnected to each other. The introduced nitrogen heteroatoms may induce dipole polarization, and the special interconnected reticular-like structure may improve the energy dissipation capacity. These features make nitrogen-doped graphene process improved dielectric loss and enhanced electromagnetic wave absorption performance. When the mass fraction of N-GN is only 10 wt%, N-GN shows a maximum reflection loss value of − 21.7 dB at 14.3 GHz with an absorber thickness of only 1.78 mm. This work indicates that nitrogen-doped graphene is a good candidate of lightweight dielectric materials.
- Subjects
GRAPHENE synthesis; ELECTROMAGNETIC waves; HYDROTHERMAL synthesis; ELECTROMAGNETIC wave absorption; DIELECTRIC materials; ARTIFICIAL intelligence; WRINKLE patterns
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 21, p26116
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-06340-4