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Electrochemical hydrogen storage of aligned multi-walled carbon nanotubes

Electrochemical hydrogen storage of aligned multi-walled carbon nanotubes
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摘要 Hydrogen storage of aligned multi-walled car-bon nanotubes (a-MWNTs), non-aligned MWNTs (n- MWNTs) and graphite electrodes are studied by the electro-chemical measurements. The electrodes are prepared by mixing carbon nanotubes (CNTs), copper powder and PTFE binder in a weight ratio of 1︰5︰3 and compressing the mixture into porous nickel collector. The results show that the electrochemical hydrogen storage capacity of the a-MWNT electrode is up to 1625 mAh/g, corresponding to a high hydrogen storage of 5.7 wt%, which is 10 times that of graphite electrode and is 13 times that of n-MWNT electrode, suggesting that a-MWNTs are promising materials for electrochemical hydrogen storage. Hydrogen storage of aligned multi-walled car-bon nanotubes (a-MWNTs), non-aligned MWNTs (n- MWNTs) and graphite electrodes are studied by the electro-chemical measurements. The electrodes are prepared by mixing carbon nanotubes (CNTs), copper powder and PTFE binder in a weight ratio of 1︰5︰3 and compressing the mixture into porous nickel collector. The results show that the electrochemical hydrogen storage capacity of the a-MWNT electrode is up to 1625 mAh/g, corresponding to a high hydrogen storage of 5.7 wt%, which is 10 times that of graphite electrode and is 13 times that of n-MWNT electrode, suggesting that a-MWNTs are promising materials for electrochemical hydrogen storage.
出处 《Chinese Science Bulletin》 SCIE EI CAS 2003年第6期538-542,共5页
基金 supported by the State Key Basic Research Program of the Ministry of Science and Technology of China(Grant No.G20000264-04).
关键词 电化学贮氢 氢能 氢气 贮存 碳纳米管 贮氢材料 carbon nanotubes, aligned, electrochemical, hydrogen storage.
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