1. Two-dimensional nanosheets Co9S8-DETA hybrid materials toward enhanced electromagnetic wave absorption.
- Author
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Hua, An, Ma, Lin, Li, Bo, Li, Yong, Bai, Guo, Liu, Daheng, Li, Da, Li, Bing, Jiang, Haichang, Ma, Song, and Zhang, Zhidong
- Subjects
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ELECTROMAGNETIC wave absorption , *HYBRID materials , *NANOSTRUCTURED materials , *HEAT treatment , *ELECTROMAGNETIC waves , *INTERFACE structures - Abstract
• The minimum reflection loss of Co 9 S 8 -DETA at 4.2 GHz frequency reaches −41.6 dB and the effective absorption bandwidth is 4.1 GHz with a thickness of only 1.6 mm. • Co 9 S 8 -DETA organic-inorganic hybrid nanosheets were synthesized by a one-step simple hydrothermal method without further thermal treatment. • The enhanced EMW absorption property of Co 9 S 8 -DETA organic-inorganic hybrid materials expands the idea of EMW property control of EMW absorbing materials by adjusting the structural characteristics of organic-inorganic hybrid materials. Co 9 S 8 -DETA organic-inorganic hybrid materials synthesized by hydrothermal method show an enhanced electromagnetic wave (EMW) absorption performance because of its unique two-dimensional (2D) structure and EMW properties regulated by the interface structure. Using Co 9 S 8 -DETA as a precursor, the organic intercalation DETA can be removed by heat treatment to obtain inorganic Co 9 S 8. Compared with Co 9 S 8 inorganic, Co 9 S 8 -DETA hybrid material assembled in a paraffin matrix with 30 wt.% shows an excellent EMW absorption performance. The minimum reflection loss at 4.2 GHz frequency reaches -41.6 dB and the effective absorption bandwidth is 4.1 GHz with a thickness of only 1.6 mm. The enhanced EMW absorption property of Co 9 S 8 -DETA organic-inorganic hybrid materials expands the idea of EMW property control of EMW absorbing materials by adjusting the structural characteristics of organic-inorganic hybrid materials. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2024
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