Preparation of Carbon Nanotubes from Methane on Ni/Cu/A1 Catalyst
A series of Ni/Cu/Al catalyst samples were prepared by the co-precipitation method. Carbon nanotubes with large inner diameters are successfully synthesized from methane on Ni/Cu/Al catalyst by adding sodium carbonate. The effects of the copper content and amounts of sodium carbonate on the morphology and microstructures of carbon nanotubes were investigated by CO adsorption and TEM technique. The experimental results showed that copper can influence both the catalytic activity and catalyst life. Best result was obtained when the copper content was 15％. Addition of sodium carbonate favors the formation of carbon nanotubes with large inner diameters. The growth mechanism of carbon nanotubes with large inner diameter is discussed.
作 者： Renzhong Wei Fengyi Li Yan Ju 作者单位： Renzhong Wei(Jiangxi Key Laboratory of Surface Engineering,Institute of Surface Engineering,Jiangxi Science and Techology Normal University,Nanchang 330013,China)Fengyi Li,Yan Ju(Department of Chemistry,Nanchang University,Nanchang 330047,China)
刊 名： 天然气化学(英文版) ISTIC SCI 英文刊名： JOURNAL OF NATURAL GAS CHEMISTRY 年，卷(期)： 2005 14(3) 分类号： O6 关键词： carbon nanotubes nickel/copper/aluminum catalyst preparation methane co-precipitation