Influence of the Sulfur Content Catalyst on the Packing Density of Carbon Nanotube Forests
- Influence of the Sulfur Content Catalyst on the Packing Density of Carbon Nanotube Forests
- 김승민; 문숙영; 강인지; 김우식
- Issue Date
- VOL 9-889-11
- 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 eect of the catalyst composition is investigated using dierent 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.
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