Vertically Aligned Large-Diameter Double-Walled Carbon Nanotube Arrays Having Ultralow Density

Vertically Aligned Large-Diameter Double-Walled Carbon Nanotube Arrays Having Ultralow Density

We have selectively synthesized ultralow density (0.015 ± 0.002 g/cm3) double-walled carbon nanotube (DWNT) arrays. The low mass density is due to the large diameter and low-site density of DWNTs in the arrays. The diameter of the as-grown DWNTs varies from 4.5 to 14.8 nm with a mean value of 7.9 nm...

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Veröffentlicht in:Journal of physical chemistry. C 2007-07, Vol.111 (26), p.9077-9080
Hauptverfasser: Ci, Lijie, Vajtai, Robert, Ajayan, P. M
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container_title Journal of physical chemistry. C
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creator Ci, Lijie
Vajtai, Robert
Ajayan, P. M
description We have selectively synthesized ultralow density (0.015 ± 0.002 g/cm3) double-walled carbon nanotube (DWNT) arrays. The low mass density is due to the large diameter and low-site density of DWNTs in the arrays. The diameter of the as-grown DWNTs varies from 4.5 to 14.8 nm with a mean value of 7.9 nm. The role of the thickness of Fe catalyst layer is evaluated for the selective growth of large-diameter DWNTs. Our DWNT arrays have promising applications in areas such as solar absorbers and super-hydrophobic surfaces.
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title Vertically Aligned Large-Diameter Double-Walled Carbon Nanotube Arrays Having Ultralow Density
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