IR study on surface chemical properties of catalytic grown carbon nanotubes and nanofibers |
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| Authors: | Li-hua Teng Tian-di Tang |
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| Institution: | (1) Institute of Biology and Environmental Science, Zhejiang Wanli University, Ningbo, 315100, China;(2) College of Chemistry, Northeast Normal University, Changchun, 130024, China |
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| Abstract: | In this study, the surface chemical properties of carbon nanotubes (CNTs) and carbon nanofibers (CNFs) grown by catalytic decomposition of methane on nickel and cobalt based catalysts were studied by DRIFT (Diffuse Reflectance Infrared Fourier Transform) and transmission Infrared (IR) spectroscopy. The results show that the surface exists not only carbon-hydrogen groups, but also carboxyl, ketene or quinone (carbonyl) oxygen-containing groups. These functional groups were formed in the process of the material growth, which result in large amount of chemical defect sites on the walls. |
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| Keywords: | Carbon nanotubes (CNTs) Carbon nanofibers (CNFs) Functional surface groups Infrared (IR) spectroscopy |
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