Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticles
Abstract To protect against harmful electromagnetic interference (EMI), it is crucial to fabricate composite with high total electromagnetic shielding efficiency (SET); In this study, FeNi3-NiFe2O4-SiO2 nanoparticles (NPs) were synthesized using one-pot method and decorated on carbon nanotube’s (CNT...
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-85378-4 |
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| author | Mahdieh Dehghani-Dashtabi Hoda Hekmatara |
| author_facet | Mahdieh Dehghani-Dashtabi Hoda Hekmatara |
| author_sort | Mahdieh Dehghani-Dashtabi |
| collection | DOAJ |
| description | Abstract To protect against harmful electromagnetic interference (EMI), it is crucial to fabricate composite with high total electromagnetic shielding efficiency (SET); In this study, FeNi3-NiFe2O4-SiO2 nanoparticles (NPs) were synthesized using one-pot method and decorated on carbon nanotube’s (CNT) sidewall. The final product was magnetic-ceramic/conductive (FeNi3-NiFe2O4-SiO2/MWCNT) nanocomposite. The EMI shielding characteristic of FeNi3-NiFe2O4-SiO2 NPs and FeNi3-NiFe2O4-SiO2/MWCNT nanocomposite was investigated in the range of X and Ku frequency band. The results indicated the high total shielding effectiveness of the FeNi3-NiFe2O4-SiO2/MWCNT nanocomposite with a thickness of 3.5 mm which was 25dB (SET>20dB ~ 90%) at an entire frequency band. The EMI shielding effectiveness of nanocomposite was higher than that of nanoparticles, because of the multi wall carbon nanotube (MWCNT) improved the AC conductivity of nanoparticles. Overall, The FeNi3-NiFe2O4-SiO2/MWCNT nanocomposite is a promising shielding material which prevents from passing 95% of incident wave through itself. |
| format | Article |
| id | doaj-art-32cd5c1bb91348248a87221bfa5f3ef2 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-32cd5c1bb91348248a87221bfa5f3ef22025-01-12T12:22:35ZengNature PortfolioScientific Reports2045-23222025-01-0115111010.1038/s41598-025-85378-4Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticlesMahdieh Dehghani-Dashtabi0Hoda Hekmatara1Department of Physics, Faculty of Science, Vali-e-Asr University of RafsanjanDepartment of Physics, Faculty of Science, Vali-e-Asr University of RafsanjanAbstract To protect against harmful electromagnetic interference (EMI), it is crucial to fabricate composite with high total electromagnetic shielding efficiency (SET); In this study, FeNi3-NiFe2O4-SiO2 nanoparticles (NPs) were synthesized using one-pot method and decorated on carbon nanotube’s (CNT) sidewall. The final product was magnetic-ceramic/conductive (FeNi3-NiFe2O4-SiO2/MWCNT) nanocomposite. The EMI shielding characteristic of FeNi3-NiFe2O4-SiO2 NPs and FeNi3-NiFe2O4-SiO2/MWCNT nanocomposite was investigated in the range of X and Ku frequency band. The results indicated the high total shielding effectiveness of the FeNi3-NiFe2O4-SiO2/MWCNT nanocomposite with a thickness of 3.5 mm which was 25dB (SET>20dB ~ 90%) at an entire frequency band. The EMI shielding effectiveness of nanocomposite was higher than that of nanoparticles, because of the multi wall carbon nanotube (MWCNT) improved the AC conductivity of nanoparticles. Overall, The FeNi3-NiFe2O4-SiO2/MWCNT nanocomposite is a promising shielding material which prevents from passing 95% of incident wave through itself.https://doi.org/10.1038/s41598-025-85378-4Shielding effectivenessMWCNTNiFe2O4FeNi3SiO2 |
| spellingShingle | Mahdieh Dehghani-Dashtabi Hoda Hekmatara Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticles Scientific Reports Shielding effectiveness MWCNT NiFe2O4 FeNi3 SiO2 |
| title | Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticles |
| title_full | Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticles |
| title_fullStr | Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticles |
| title_full_unstemmed | Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticles |
| title_short | Structural, electrical and EMI shielding property of carbon nanotube decorated magnetic/ceramic nanoparticles |
| title_sort | structural electrical and emi shielding property of carbon nanotube decorated magnetic ceramic nanoparticles |
| topic | Shielding effectiveness MWCNT NiFe2O4 FeNi3 SiO2 |
| url | https://doi.org/10.1038/s41598-025-85378-4 |
| work_keys_str_mv | AT mahdiehdehghanidashtabi structuralelectricalandemishieldingpropertyofcarbonnanotubedecoratedmagneticceramicnanoparticles AT hodahekmatara structuralelectricalandemishieldingpropertyofcarbonnanotubedecoratedmagneticceramicnanoparticles |