Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes

doi:10.1088/1674-1056/19/6/066101

中国物理B ›› 2010, Vol. 19 ›› Issue (6): 66101-066101.doi: 10.1088/1674-1056/19/6/066101

Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes

郑凯泓¹, 胡丽君¹, 孙连峰¹, 刘基², 刘政²

(1)National Center for Nanoscience and Technology, Beijing 100190, China; (2)National Center for Nanoscience and Technology, Beijing 100190, China;Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2009-10-19 出版日期:2010-06-15 发布日期:2010-06-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No.~2006CB932402) and the National Natural Science Foundation of China (Grant Nos.~50702015, 10574034, and 10774032).

Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes

Liu Ji(刘基)^a)b), Zheng Kai-Hong(郑凯泓)^a), Liu Zheng(刘政)^a)b), Hu Li-Jun(胡丽君)^a)b), and Sun Lian-Feng(孙连峰)^a)^†

^a National Center for Nanoscience and Technology, Beijing 100190, China; ^b Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

Received:2009-10-19 Online:2010-06-15 Published:2010-06-15
Supported by:
Project supported by the National Basic Research Program of China (Grant No.~2006CB932402) and the National Natural Science Foundation of China (Grant Nos.~50702015, 10574034, and 10774032).

摘要/Abstract

摘要： 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.

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.

Key words: single-walled carbon nanotube, water, energy conversion

中图分类号: (Nanotube devices)

85.35.Kt

61.48.-c (Structure of fullerenes and related hollow and planar molecular structures) 84.60.-h (Direct energy conversion and storage)

刘基, 郑凯泓, 刘政, 胡丽君, 孙连峰. Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes[J]. 中国物理B, 2010, 19(6): 66101-066101.

Liu Ji(刘基), Zheng Kai-Hong(郑凯泓), Liu Zheng(刘政), Hu Li-Jun(胡丽君), and Sun Lian-Feng(孙连峰). Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes[J]. Chin. Phys. B, 2010, 19(6): 66101-066101.

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Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes

Direct transition of potential of water droplets to electric energy using aligned single-walled carbon nanotubes

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