Structural studies of oriented carbon nanotubes in alumina channels using high energy X-ray diffraction |
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Authors: | Andrzej Burian John C. Dore Veijo Honkimaki |
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Affiliation: | a A. Chelkowski Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland b School of Physical Sciences, University of Kent, Canterbury, CT 7NR, United Kingdom c Institute of Multidisciplinary Research and Advanced Materials, Tohoku University, Katahira, Sendai 980-8577, Japan d European Synchrotron Radiation Facility (ESRF) BP 220, 38043 Grenoble, France |
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Abstract: | Structural studies of multi-wall carbon nanotubes prepared by template pyrolytic carbon deposition from thermal decomposition of propylene at 800 °C inside channels of an alumina membrane have been performed using X-ray diffraction. The two-dimensional diffraction pattern of the deposited carbon nanotubes, recorded directly within the alumina template using an image plate detector, exhibits two dark arcs corresponding to the (0 0 2) graphitic reflection. The anisotropic scattering distribution indicates alignment of the nanotubes. The diffracted intensity was measured for the powdered samples after removing the alumina membrane using a point detector. A maximum scattering vector of Kmax = 20 Å−1 yielded the radial distribution function, providing evidence that the investigated nanotubes form a distorted hexagonal network that implies the presence of five-membered rings. |
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Keywords: | Carbon nanotubes Chemical vapor deposition X-ray diffraction |
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