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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
Source PublicationJOURNAL OF SOLID STATE ELECTROCHEMISTRY
2014-09-01
Volume18Issue:9Pages:2609-2617
SubtypeArticle
AbstractThrough 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.
KeywordTio2 Nanotube Anodizing Electronic Current Oxygen Bubble Growth Efficiency
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordGROWTH ; OXIDE ; NANOSTRUCTURE ; OXIDATION ; TITANIUM ; ELECTROLYTES ; ANODIZATION ; MECHANISM ; MEMBRANES ; BEHAVIOR
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000341097000031
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Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/8039
Collection国家专用集成电路设计工程技术研究中心
Affiliation1.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
Recommended Citation
GB/T 7714
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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