期刊
RSC ADVANCES
卷 10, 期 60, 页码 36644-36653出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra06817a
关键词
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资金
- Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi [2019L0883]
- Applied Basic Research Project of Shanxi [201901D111303]
- Shanxi 1331 Project Key Innovative Research Team [PY201817]
- Jinzhong University 1331 Project Key Innovative Research Team [jzxycxtd2019005]
Composites obtained by incorporating magnetic nanoparticles into porous carbon materials are promising in serving as microwave absorbing materials. In this study, Ni/C porous fibers were successfully synthesized through a simplein situtemplate method by using low-cost jute fibers as carbon source and template. The results showed that the Ni nanoparticles were uniformly loaded on the surface and hollow porous structure of the Ni/C porous fibers. Meanwhile, the content and size of the Ni nanoparticles on the Ni/C porous fibers can be controlled. Due to a suitable filling content, the synergistic effect of dielectric loss, interface polarization loss, magnetic loss and porous structure of the Ni/C porous fibers, an excellent microwave absorption performance was achieved. The minimum reflection loss value reached -43.0 dB, and a reflection loss value less than -10 dB was in the frequency range of 11.2-16.1 GHz with 2.0 mm thickness. In particular, under matching thickness (1.5-3.5 mm), the values of all the reflection loss peaks were below -20.0 dB. It is believed that this work can not only provide a new way to design excellent carbon-based microwave absorbing materials, but also offer an effective design strategy to synthesize biomass nanocomposites.
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