Simulation of anodizing current-time curves and morphology evolution of TiO2 nanotube arrays
Yu, Dongliang1; Zhang, Shaoyu2; Zhu, Xufei2; Ma, Hongtu3; Han, Hua3; Song, Ye1
2014-09-01
发表期刊JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷号18期号:9页码:2609-2617
文章类型Article
摘要Through introducing appropriate additives into the electrolytes, the morphology and growth efficiency of TiO2 nanotube arrays (TNTAs) have been greatly influenced. The anodizing current transients and the corresponding morphology of TNTAs were investigated and compared in detail by SEM. To further understand the mechanism, the measured current-time curves obtained during the anodization of titanium in the electrolytes with different additives are simulated. Notably, in the total anodizing current, the ionic current is separated from the electronic current according to the present model, and that the electronic current and ionic current make different contributions to the growth of TNTAs. It is found that the initiation of nanopores may be caused by the rupture of the oxygen bubbles occluded in the growing oxide, and the opening of nanotubes is thought to be close related to the disturbance effect of the rising bubbles (caused by electronic current). The present results would be helpful for understanding the formation mechanism of TNTAs from the perspective of ionic and electronic current. And practically, the nanotube length can be predicted and deduced quantitatively via simulating and comparing electronic and ionic current.
关键词Tio2 Nanotube Anodizing Electronic Current Oxygen Bubble Growth Efficiency
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]GROWTH ; OXIDE ; NANOSTRUCTURE ; OXIDATION ; TITANIUM ; ELECTROLYTES ; ANODIZATION ; MECHANISM ; MEMBRANES ; BEHAVIOR
收录类别SCI
语种英语
WOS研究方向Electrochemistry
WOS类目Electrochemistry
WOS记录号WOS:000341097000031
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/8039
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, Key Lab Soft Chem & Funct Mat, Educ Minist, Nanjing 210094, Jiangsu, Peoples R China
2.Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China
3.Chinese Acad Sci, Natl Engn & Technol Res Ctr ASIC Design, Inst Automat, Beijing 100190, Peoples R China
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Yu, Dongliang,Zhang, Shaoyu,Zhu, Xufei,et al. Simulation of anodizing current-time curves and morphology evolution of TiO2 nanotube arrays[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2014,18(9):2609-2617.
APA Yu, Dongliang,Zhang, Shaoyu,Zhu, Xufei,Ma, Hongtu,Han, Hua,&Song, Ye.(2014).Simulation of anodizing current-time curves and morphology evolution of TiO2 nanotube arrays.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,18(9),2609-2617.
MLA Yu, Dongliang,et al."Simulation of anodizing current-time curves and morphology evolution of TiO2 nanotube arrays".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 18.9(2014):2609-2617.
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