期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 834, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.155092
关键词
ZnCo2O4; Electromagnetic wave absorption; Dielectric loss; Multiple-reflections
资金
- Natural Science Foundation of Shandong Province [ZR2019YQ24]
- Qingchuang Talents Induction Program of Shandong Higher Education Institution (Research and Innovation Team of Structural-Functional Polymer Composites)
- National Natural Science Foundation of China [51407134, 51603108, 51801001]
- China Postdoctoral Science Foundation [2016M590619, 2016M601878]
- Provincial Key Research and Development Program of Shaanxi [2019GY-197]
- Thousand Talents Plan
- The World-Class University and Discipline
- Taishan Scholar's Advantageous and Distinctive Discipline Program of Shandong Province
- World-Class Discipline Program of Shandong Province
The development of new absorbing materials that meet the requirements of thin, light, wide and strong become a challenge for efficient electromagnetic wave absorbing materials, it is also attracting more and more people to develop in this direction. In this work, the mutual stacking process of nano-sheets was achieved through a simple solvothermal reaction. After annealing, a flower-like ZnCo2O4 material was obtained. ZnCo2O4 has excellent electromagnetic wave absorption performance due to the special structure of the nanometer plates stacked on each other. Especially, ZnCo2O4-350 has a minimum RL value of -43.61 dB in the matching thickness of 2.4 mm, while the effective absorption bandwidth was 7.12 GHz covering from 10.88 to 18.0 GHz in 2.8 mm. The excellent absorption performance of electromagnetic wave is related to the conductivity loss, multiple reflection and scattering caused by the special morphology. The research may provide new ideas for the development and design of new electromagnetic wave absorbing materials. (C) 2020 Elsevier B.V. All rights reserved.
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