Forming efficiency of porous anodic oxide and formation mechanism of nanopores
Zhu Xu-Fei1; Han Hua2; Song Ye1; Ma Hong-Tu2; Qi Wei-Xing1; Lu Chao1; Xu Chen1
2012
发表期刊ACTA PHYSICA SINICA
卷号61期号:22
文章类型Article
摘要Porous anodic alumina (PAA) and porous anodic TiO2 nanotubes have received considerable attention because of their applications in a number of fields. The formation mechanisms of nanopores and nanotubes in these porous anodic oxides, however, have remained unclear until now. The interactions between porous structural features and current-time transients in anodizing process cannot be successfully explained. Based on the mechanism of dielectric breakdown of the compact anodic alumina (CAA), the differences and internal relations in their forming processes between CAA and PAA are contrasted in detail. From this innovative standpoint, according to the divergence of PAA and CAA in their current-time curves (or voltage-time curves), two essential causes which induce the decrease of the forming efficiency of oxide in the anodizing process, that is, the generation of the electronic current and the oxygen evolution, are presented in the paper. The evidences of the round hollows within the CAA films, show that the regularly embryo pores result from the oxygen bubbles. According to the aluminum anodizing in the mixed-electrolyte, the results show that once oxygen evolution stopping, the pore growth must be stopped, and the pores must be sealed by the above compact oxide. A novel composite film of the anodic oxide is presented. All of the above conclusively show that in the forming process of PAA, an appropriate magnitude of electronic current ensures the oxygen evolution and the pores formation, an appropriate magnitude of ionic current ensures the oxide formation and growth of pore walls.
关键词Anodization Porous Anodic Alumina (Paa) Electronic Current Nanoporous Materials
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]HEXAGONAL PORE ARRAYS ; TIO2 NANOTUBE ARRAYS ; ALUMINUM-OXIDE ; PULSE ANODIZATION ; OXYGEN BUBBLES ; FILMS ; GROWTH ; ACID ; MORPHOLOGY ; FABRICATION
收录类别SCI
语种英语
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000316732600073
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/7992
专题国家专用集成电路设计工程技术研究中心
作者单位1.Nanjing Univ Sci & Technol, Minist Educ, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Automat, Natl Engn & Technol Res Ctr ASIC Design, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Zhu Xu-Fei,Han Hua,Song Ye,et al. Forming efficiency of porous anodic oxide and formation mechanism of nanopores[J]. ACTA PHYSICA SINICA,2012,61(22).
APA Zhu Xu-Fei.,Han Hua.,Song Ye.,Ma Hong-Tu.,Qi Wei-Xing.,...&Xu Chen.(2012).Forming efficiency of porous anodic oxide and formation mechanism of nanopores.ACTA PHYSICA SINICA,61(22).
MLA Zhu Xu-Fei,et al."Forming efficiency of porous anodic oxide and formation mechanism of nanopores".ACTA PHYSICA SINICA 61.22(2012).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhu Xu-Fei]的文章
[Han Hua]的文章
[Song Ye]的文章
百度学术
百度学术中相似的文章
[Zhu Xu-Fei]的文章
[Han Hua]的文章
[Song Ye]的文章
必应学术
必应学术中相似的文章
[Zhu Xu-Fei]的文章
[Han Hua]的文章
[Song Ye]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。