A fundamental limitation of small diameter Single-Walled carbon nanotube Synthesis-a scaling rule of the carbon nanotube yield with catalyst volume

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Abstract

Understanding the fundamental mechanisms and limiting processes of the growth of single-walled carbon nanotube (SWCNT) would serve as a guide to achieve further control on structural parameters of SWCNT. In this paper, we have studied the growth kinetics of a series of SWCNT forests continuously spanning a wide range of diameters (1.9-3.2 nm), and have revealed an additional fundamental growth limiting process where the mass of the individual SWCNT is determined by the individual catalyst volume. Calculation of the conversion rate of carbon atoms into CNTs per Fe atom is 2 × 102 atoms per second. This rate limiting process provides an important understanding where the larger diameter SWCNT would grow faster, and thus be more suited for mass production. © 2013 by the authors; licensee MDPI, Basel, Switzerland.

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Sakurai, S., Inaguma, M., Futaba, D. N., Yumura, M., & Hata, K. (2013). A fundamental limitation of small diameter Single-Walled carbon nanotube Synthesis-a scaling rule of the carbon nanotube yield with catalyst volume. Materials, 6(7), 2633–2641. https://doi.org/10.3390/ma6072633

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