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Influence of the Sulfur Content Catalyst on the Packing Density of Carbon Nanotube Forests

1
Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Chudong-ro 92, Bongdong-eup, Wanju-gun, Jeonbuk 55324, Korea
2
Ceramic Fiber & Composite Center, Korea Institute of Ceramic Engineering & Technology, 101 Soho-ro, Jinju-si, Gyeongsangnam-do 52851, Korea
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(6), 889; https://doi.org/10.3390/nano9060889
Received: 22 May 2019 / Revised: 4 June 2019 / Accepted: 12 June 2019 / Published: 17 June 2019
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Abstract

For the fabrication of high-performance carbon nanotube (CNT) composites with practical applicability, the development of new methods for the controlled growth of high-aspect-ratio CNTs still constitutes a challenge. With the aim of gaining a deeper understanding of the catalytic CNT growth, in this study, the effect of the catalyst composition is investigated using different mixtures of Fe2(SO4)3 and FeCl2 as catalysts. The relationship between the catalyst chemical state and the growth behavior of CNT forests is demonstrated by evaluating the alignment, diameter, length, and areal density of the CNT forests. When the Fe2(SO4)3 content is increased, the area density, the IG/ID ratio, and the crystallite size of the CNTs increase. Additionally, the obtained CNT forests exhibit good spinnability with increasing the sulfur content. View Full-Text
Keywords: CNT; growth; sulfur; spinnability CNT; growth; sulfur; spinnability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Moon, S.Y.; Kang, I.J.; Kim, S.M.; Kim, W.S. Influence of the Sulfur Content Catalyst on the Packing Density of Carbon Nanotube Forests. Nanomaterials 2019, 9, 889.

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