摘要
以草酸为电解液,分别用一次阳极氧化法和二次阳极氧化法制备了阳极氧化铝(AAO,anodic alu-minum oxide)模板,在较大范围内得到了纳米孔分布均匀、孔洞大小均一、尺寸可控、排列有序的双通模板.采用扫描电镜(SEM)对其形貌进行表征,发现一次阳极氧化法制得的AAO模板的反面孔洞排列较为规则,而正面的孔洞排列规则性明显不如反面;二次阳极氧化法制备得到的模板正、反面孔洞的排列都比较规则.比较了模板正、反面纳米孔洞的差异,并结合阳极氧化过程中电流的变化,探讨了自组织孔洞的形成机理.目前尚未发现关于纳米孔洞差异性及原因分析的文献报道.
Anodic aluminum oxide （AAO） templates were prepared by one- and two-step anodization in oxalic acid solution, respectively. The morphology of the AAO templates were characterized by scanning electron microscopy （SEM） and the result showed that the two-side-open templates have ordered, regular and diameter-controlled nano-pores. It can be seen from the SEM images of the AAO templates that the nano-pores in the back side of the AAO template prepared by one-step anodization were more regular than that in the face side, but the nano-pores in the two surfaces of the AAO templates prepared by two-step anodization were all regular. The difference of the nano-pores in the face and back side was compared and the plot of the current vs. the time during anodization was recorded. The mechanism of the self-organization process of the nano-peres of the AAO templates was discussed. Up to now, there is no paper to explain the difference of the nano-pores.
出处
《江西师范大学学报（自然科学版）》
CAS
北大核心
2008年第6期631-636,共6页
Journal of Jiangxi Normal University(Natural Science Edition)
基金
国家自然科学基金(20671011
20731002)
首都师范大学青年基金(005230901
085605400)资助项目
关键词
氧化铝模板
阳极氧化法
扫描电镜
自组织机制
anodic aluminum oxide （AAO） template
anodic anodization
scanning electron microscopy
mechanism of self-organization
