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Tuning synthesis temperature spectrum to unlock multifunctional potential in multi-walled carbon nanotubes for EMI shielding and optical applications


Citation

Kamil Kayode, Katibi and Azis, Rabaah Syahidah and Garba Shitu, Ibrahim and Ismail, Ismayadi and Soo Kien, Chen and Kean Pah, Lim and Awang Kechik, Mohd Mustafa and Md Yunos, Khairul Faezah and Abdulhameed Amusa, Abiodun (2025) Tuning synthesis temperature spectrum to unlock multifunctional potential in multi-walled carbon nanotubes for EMI shielding and optical applications. Journal of Industrial and Engineering Chemistry, 146. pp. 826-852. ISSN 1226-086X

Abstract

Multi-walled carbon nanotubes (MWCNTs) have garnered significant attention for their promising potential in electromagnetic interference (EMI) shielding due to their superior electrical conductivity, structural stability, and multifunctional properties. This study explores how chemical vapor deposition (CVD) synthesis temperatures (700 ◦ C, and 900 ◦ C) affect the structural, morphological, thermal, absorption, optical properties, and EMI shielding of MWCNTs. Using advanced characterization techniques, including High-Resolution Transmission Electron Microscopy (HRTEM), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Raman spectroscopy, Thermogravimetric Analysis (TGA), and optical absorption spectroscopy, the MWCNTs were thoroughly analyzed. The 900 ◦ C sample exhibited superior EMI shielding effectiveness (38 dB in the X-band) and high optical transmittance of 85 % at 550 nm. In comparison, the 700 ◦ C sample had higher defect density, resulting in lower transmittance (35 %) and reduced shielding (22 dB). These findings demonstrate a direct correlation between higher synthesis temperatures, improved crystallinity, and enhanced electromagnetic and optical performance. This research highlights the potential of MWCNTs for high-performance EMI shielding materials, particularly suited for advanced applications in telecommunications, electronics, and aerospace.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Faculty of Engineering
Institut Nanosains dan Nanoteknologi
DOI Number: https://doi.org/10.1016/j.jiec.2025.02.034
Publisher: Korean Society of Industrial Engineering Chemistry
Keywords: Chemical vapour deposition (CVD); EMI shielding; Multi-walled carbon nanotubes; Optical properties; Synthesis temperature
Depositing User: Scopus
Date Deposited: 30 Apr 2025 03:50
Last Modified: 30 Apr 2025 03:50
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jiec.2025.02.034
URI: http://psasir.upm.edu.my/id/eprint/117146
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