Freestanding Foils of NbSe2 and Carbon Nanotubes for Efficient Electromagnetic Shielding

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927521" target="_blank" >RIV/60461373:22310/23:43927521 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/full/10.1021/acsanm.2c05119" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acsanm.2c05119</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsanm.2c05119" target="_blank" >10.1021/acsanm.2c05119</a>

Result language
angličtina
Original language name
Freestanding Foils of NbSe2 and Carbon Nanotubes for Efficient Electromagnetic Shielding
Original language description
The presence of electromagnetic radiation is becoming an ongoing topic due to possible interference issues as well as potential health risks. Therefore, the development of electromagnetic interference (EMI) shielding materials is of utmost importance. Herein, a composite material for EMI shielding based on metallic niobium diselenide (NbSe2) and single-walled carbon nanotubes (CNTs) with a low loading of 3 wt % is reported. The NbSe2 + 3CNTs composite was prepared using a high shear-force homogenizer followed by vacuum filtration to obtain a freestanding foil with a thickness of 219 ± 22 μm. The EMI shielding effectiveness (SE) of the NbSe2 + 3CNTs composite was also compared with its building blocks. The EMI SEs at 12.4 GHz were 31.4, 48.5, and 62.7 dB for pure NbSe2, pure CNTs, and the NbSe2 + 3CNTs composite, respectively. Such excellent performance of our composite material is attributed to a synergistic effect between the NbSe2 and CNTs, where the CNTs not only increase the conductivity of the composite but also form an interconnecting network between the NbSe2 sheets, thus forming a 3D network with abundant sites for EM wave attenuation. It is the first study on the EMI shielding performance of a TMD other than MoS2-based material. © 2023 American Chemical Society.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/GC20-16124J" target="_blank" >GC20-16124J: Two-dimensional layered transition metal dichalcogenides/ nanostructured carbons composites for electrochemical energy storage and conversion</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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