Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes |
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Authors: | Liu Ji Zheng Kai-Hong Liu Zheng Hu Li-Jun and Sun Lian-Feng |
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Institution: | National Center for Nanoscience and Technology, Beijing 100190, China; Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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Abstract: | In this paper, we report that an electromotive force (EMF)
can be induced in a rope of aligned single-walled carbon nanotubes
(SWNTs) when water droplets fall on this rope. The magnitude of this
EMF depends sensitively on the slant angle of the SWNTs. Most
interestingly, both the magnitude and the direction of the induced
EFM can be modulated by applying a current to the SWNTs. The
concepts of electrical slip and no-slip are proposed and can be
quantitatively described by ``electrical slip resistance'. This
kind of generator does not need any magnet, rotor, {etc} and shows
quite a different operating mechanism and design compared with a
conventional large scale hydroelectric power generator. |
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Keywords: | single-walled carbon nanotube water energy conversion |
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