CNTs tuning and vertical alignment in anodic aluminium oxide membrane

作     者：Maria Sarno Diana Sannino Caterina Leone Paolo Ciambelli 

作者机构：Department of Industrial Engineering and Centre NANO MATES University of Salerno 

出 版 物：《Journal of Natural Gas Chemistry》 (天然气化学杂志（英文版）)

年 卷 期：2012年第21卷第6期

页      面：639-646页

核心收录：

学科分类：0808[工学-电气工程] 07[理学] 0817[工学-化学工程与技术] 070205[理学-凝聚态物理] 08[工学] 0807[工学-动力工程及工程热物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the CATHERINE FP7 European STREP Project(No.:216215) 

主　　题：catalysis chemical processes nanomaterials microreactor hydrocarbons CVD controlled CNTs synthesis 

摘      要：Anodic aluminium oxide （AAOM） membranes were used for template growth of carbon nanotubes （CNT） inside their pores by chemical vapour deposition （CVD） of different hydrocarbons, in the absence of transition metal catalyst. A composite material, containing one nanotube for each channel, having the same length as the membrane thickness and the external diameter close to the diameter of the membrane holes, was obtained. Yield, selectivity, and quality of CNTs in terms of diameter （up to very thin CNT）, carbon order, length, arrangement （i.e. number of tubes for each channel）, purity, that are critical requisites for several applications were optimised by investigating the effect of changing the hydrocarbon feedstock gas, also in the presence of hydrogen. The samples produced using methane as a feedstock have a well ordered structure. The role of the alumina channels surface during the CNT growth has been investigated and its catalytic activity has been proved for the first time.