Electromagnetic Interference Shielding Properties of Conductive Polyaniline/TiO2/MoS2 Hybrid Composites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F25%3A43909857" target="_blank" >RIV/60076658:12310/25:43909857 - isvavai.cz</a>
Result on the web
<a href="http://chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://pubs.acs.org/doi/pdf/10.1021/acsomega.5c02527?ref=article_openPDF" target="_blank" >http://chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://pubs.acs.org/doi/pdf/10.1021/acsomega.5c02527?ref=article_openPDF</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsomega.5c02527" target="_blank" >10.1021/acsomega.5c02527</a>
Alternative languages
Result language
angličtina
Original language name
Electromagnetic Interference Shielding Properties of Conductive Polyaniline/TiO2/MoS2 Hybrid Composites
Original language description
This study investigates the hybrid ternary composite of polyaniline (PANI), titanium dioxide (TiO2), and molybdenum disulfide (MoS2) to improve electromagnetic interference (EMI) shielding in high-frequency electronic devices. The study examines the shielding effectiveness (SE) of this hybrid composite by altering MoS2 concentrations. The composite was created through a four-stage in situ polymerization method, with MoS2 levels at 10, 20, and 30 wt % and a fixed TiO2 content of 10 wt %. A Vector network analyzer (VNA) was employed to measure EMI SE and complex permittivity in the 8.2-12.4 GHz frequency range. The composite with 20 wt % MoS2 exhibited the highest SE of 50.86 dB for 3 mm thickness, surpassing other formulations. The enhanced shielding performance is credited to the synergistic effects of MoS2 and TiO2, which enhance the impedance matching, electrical conductivity, and electromagnetic wave dissipation. Further analysis revealed that factors, such as binding and agglomeration during in situ polymerization, along with electromagnetic absorption and multiple scattering mechanisms, significantly influence the shielding process. The results indicate that the optimized PANI/TiO2/MoS2 hybrid composite shows promise as an effective EMI shielding material for cutting-edge electronic and communication applications.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Omega
ISSN
2470-1343
e-ISSN
2470-1343
Volume of the periodical
10
Issue of the periodical within the volume
26
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
28143-28152
UT code for WoS article
001516865700001
EID of the result in the Scopus database
2-s2.0-105008713222