苯胺在碳纳米管上的吸附特征

Purification processing has a great effect on carbon nanotubes.On one hand it can remove impurities and increase the surface area of carbon nanotubes.On the other hand it can introduce functional groups such as hydroxyl,carboxyl and carbonyl on the surface of carbon nanotubes.Both improved the adsorption capability of carbon nanotubes.The adsorption processes can be well modeled by isothermic equation Freundlich and equation de Boer-Ziwkker.The results also showed that carbon nanotubes can be regenerated and have great potential applications in environmental protection.

钯膜上CVD法制备碳纳米管薄膜的研究(英文)

采用化学气相沉积法,以乙炔为碳源,在各种钯膜上制备了碳纳米管薄膜。通过电子显微镜观察了碳管薄膜和钯膜的表面形貌。结果表明,在真空气氛下磁控溅射的钯膜上无法生长碳纳米管。对溅射的钯膜进行大气气氛下的退火处理,则可生长出稀疏的碳纳米管团聚颗粒。采用在氧气气氛下磁控溅射的钯膜作为催化剂,则可显著提高碳管的生长密度和纯度,从而获得致密均匀的碳纳米管薄膜。