By this hydrogen arc discharge method film-like or web-like substances, which are mainly made up of SWNT bundles determined by TEM and SEM observations, were obtained.

• 氢电弧法制备出的单壁纳米碳管堆积成膜状或网状，电镜下可见产物主要由相互缠绕的单壁纳米碳管束构成，纯度较高；