Provided are a carbon nanotube for a fuel cell which is improved in the uniformity of distribution of metal catalyst particles, its preparation method, a method for preparing a nanocomposite for a fuel cell, an electrode containing the nanocomposite, and a fuel cell using the electrode which is improved in reaction efficiency. The carbon nanotube is aligned in one direction with separated one another by a certain distance, and has an angle of 30 degrees to an alignment axis. Preferably the carbon nanotube has a density of 10^7-10^12 /cm^2, and average diameter of 2-200 nm and a distance of 10-200 nm. Also the carbon nanotube comprises a first carbon nanotube which is aligned in one direction with separated one another by a certain distance, and has an angle of 30 degrees to an alignment axis; and a second carbon nanotube which is aligned to be vertical to the first carbon nanotube and to have a slope of 80 degrees of less to the vertical axis to the carbon nanotube.
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机译：提供了一种燃料电池用碳纳米管，其改善了金属催化剂颗粒的分布均匀性，其制备方法，制备用于燃料电池的纳米复合材料的方法，包含该纳米复合材料的电极以及使用该电极的燃料电池反应效率得到提高。碳纳米管在一个方向上彼此间隔一定距离地排列，并且与排列轴成30度角。优选地，碳纳米管的密度为10 7-7-10 12 / cm 2，平均直径为2-200nm，距离为10-200nm。碳纳米管还包括第一碳纳米管，该第一碳纳米管在一个方向上彼此间隔一定距离排列，并且与排列轴成30度角。第二碳纳米管排列成垂直于第一碳纳米管并且相对于碳纳米管的垂直轴具有小于80度的斜率。
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