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- Title
Sandwich-Like Fe&TiO<sub>2</sub>@C Nanocomposites Derived from MXene/Fe-MOFs Hybrids for Electromagnetic Absorption.
- Authors
Deng, Baiwen; Xiang, Zhen; Xiong, Juan; Liu, Zhicheng; Yu, Lunzhou; Lu, Wei
- Abstract
Highlights: Sandwich-like laminated Fe&TiO2@C nanocomposites were successfully prepared from the MXene–MOFs hybrids. A broad effective bandwidth of 6.5 GHz at a thickness of only 1.6 mm was achieved. Electromagnetic pollution has been causing a series of problems in people's life, and electromagnetic absorbers with lightweight and broad absorbing bandwidth properties are widely desired. In this work, novel sandwich-like 2D laminated Fe&TiO2 nanoparticles@C nanocomposites were rationally designed and successfully developed from the MXene–MOFs hybrids. The formation of Fe and rutile-TiO2 nanoparticles sandwiched by the two-dimensional carbon nanosheets provided strong electromagnetic energy attenuation and good impedance matching for electromagnetic wave (EMW) absorption. As expected, the nanocomposites achieved a broad effective absorption bandwidth of 6.5 GHz at a thickness of only 1.6 mm and the minimum reflection loss (RL) value of − 51.8 dB at 6.6 GHz with a thickness of 3 mm. This work not only provides a good design and fabricating concept for the laminated metal and functional nanoparticles@C nanocomposites with good EMW absorption, but also offers an important guideline to fabricate various two-dimensional nanocomposites derived from the MXene precursors.
- Subjects
NANOCOMPOSITE materials; LAMINATED metals; ELECTROMAGNETIC waves; ELECTROMAGNETIC wave absorption; IMPEDANCE matching; ELECTROMAGNETIC spectrum
- Publication
Nano-Micro Letters, 2020, Vol 12, Issue 1, pN.PAG
- ISSN
2311-6706
- Publication type
Article
- DOI
10.1007/s40820-020-0398-2