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使用99.99%的铝片,在草酸溶液中,通过基于自组织基础上的二次氧化法制备了孔高度有序、六角排列的氧化铝模板,在微米尺寸区域内获得了高度平行的氧化铝纳米孔阵列。利用化学气相沉积技术(CVD),在没有任何过渡金属催化剂的情况下,利用多孔氧化铝模板本身的催化作用,在氧化铝模板孔内成功制备了高度有序的平行碳纳米管阵列。这种碳纳米管阵列可以作为研究离子束沟道传输特性的较理想材料。利用扫描电子显微镜(SEM)和电子背散射衍射(EBSD)等测试手段对铝片、氧化铝模板和碳纳米管的结构进行了表征。讨论了氧化铝模板的形成机制和基于氧化铝模板生长高度定向碳纳米管的条件。
A highly ordered and hexagonal alumina template was prepared by the secondary oxidation method based on self-organization in oxalic acid solution with 99.99% aluminum flake. Highly parallel alumina nano-particles were obtained in the micron size region Hole array. Using chemical vapor deposition (CVD), a highly ordered array of parallel carbon nanotubes (MWNTs) was successfully prepared in the pores of the alumina template by the catalytic action of the porous alumina template without any transition metal catalyst. This carbon nanotube array can be used as a more ideal material for studying the channel transport characteristics of ion beams. The structures of aluminum sheet, alumina template and carbon nanotube were characterized by scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD). The formation mechanism of alumina templates and the conditions of highly oriented carbon nanotubes based on the growth of alumina templates are discussed.