• Morphology-property relationship in radially oriented anchored carbon nanotubes on polybenzimidazole nanofibers

Yildiz, Kaan, Al Rai, Adel, Erturk, Melike, Koken, Deniz, Bozali, Beyza, Zakaria, Afshin, Cebeci, Fevzi Cakmak, Ozden Yenigun, Elif and Cebeci, Hulya, 2023, Journal Article, Morphology-property relationship in radially oriented anchored carbon nanotubes on polybenzimidazole nanofibers Journal of Materials Science, 58. pp. 9978-9990. ISSN 1573-4803

Abstract or Description:

Introducing carbon nanotubes (CNTs) capable of anchoring on nanofibers establishes new possibilities in many applications, such as lithium–sulfur bat- teries and laminated composites. Direct growth and attachment of CNTs elim- inate dispersion challenges such as detachment or transfer of CNTs onto another medium and damage to CNTs, making them inadequate for practical applica- tions. This study facilitated the direct growth of conductive CNTs on curved, high-temperature resistant polymeric polybenzimidazole (PBI) nanofiber sur- faces via chemical vapor deposition (CVD). Control of CVD process parameters, including nucleation and growth times (10 or 15 min) and catalyst concentration (1 or 10 mM) at 600 °C resulted in the growth of radially oriented CNTs on PBI nanofiber surfaces and provided morphology-dominated behavior both on physical and electrical properties. Morphological analyses showed that opti- mizing catalyst concentration (10 mM) and CVD process parameters, including nucleation (15 min) and growth times (10 min and 15 min), yielded uniform CNT coverage and conformity. A systematic exploration of mesoscopic mor- phologies revealed a strong correlation between physical parameters such as CNT array lengths and electrical conductivity, up to 0.039 ± 0.004 S/cm. The proposed CNT growth method could offer in situ structural tunability to respond to application-related requirements from energy storage to the rate capability of lithium-based batteries.

Official URL: https://link.springer.com/article/10.1007/s10853-0...
Subjects: Other > Engineering > H100 General Engineering > H150 Engineering Design
School or Centre: School of Design
Funders: This research was funded by TUBITAK (The Scien- tific and Technological Research Council of Turkey) under the career development R&D Projects funding program with Grant number 116M427
Identification Number or DOI: https://doi.org/10.1007/s10853-023-08620-2
Date Deposited: 27 Jul 2023 15:53
Last Modified: 27 Jul 2023 15:53
URI: https://researchonline.rca.ac.uk/id/eprint/5480
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