继合成出世界上最长以及储氢性能优良的碳纳米管后 ,我国科学家不久前成功合成出世界上最细的碳纳米管 ,从而在这一领域更上一层楼。一纳米是一米的十亿分之一。１９９１年被人类发现的碳纳米管 ,是由石墨碳原子层卷曲而成的碳管 ,管直径一般为几个纳米到几十个纳米 ,管壁厚度 Following the synthesis of the world’s longest and excellent hydrogen storage properties of carbon nanotubes, our scientists not long ago successfully synthesized the world’s smallest carbon nanotubes, which in the field to a higher level. One nanometer is one billionth of a meter. Carbon nanotubes discovered by humans in 1991 were carbon tubes curled from layers of graphite carbon atoms. The diameter of the tubes is generally several nanometers to several tens of nanometers. The thickness of the tube wall