Two-step bipolar anodization: Design of titanium with two different faces
In this study, titanium (Ti) with two chemically distinct faces was formed using two-step direct current (DC) bipolar anodization. A Ti sheet was positioned vertically in the center of an electrolytic cell as a bipolar electrode (BPE). The oxidation area on the BPE was visualized using an interferen...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248122001783 |
| _version_ | 1811192540938895360 |
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| author | Yuuka Kokubo Hidetaka Asoh |
| author_facet | Yuuka Kokubo Hidetaka Asoh |
| author_sort | Yuuka Kokubo |
| collection | DOAJ |
| description | In this study, titanium (Ti) with two chemically distinct faces was formed using two-step direct current (DC) bipolar anodization. A Ti sheet was positioned vertically in the center of an electrolytic cell as a bipolar electrode (BPE). The oxidation area on the BPE was visualized using an interference color caused by the formation of a barrier-type oxide film on the Ti BPE in phosphoric acid under a DC electric field. When different voltages were applied between the driving electrodes for the first and second steps, the front and back sides of the BPE showed different colors because of differences in film thickness. Even in the case of a ball-shaped Ti BPE, site-selective film formation could be demonstrated using a wireless and maskless operation, regardless of the shape of the BPE. |
| first_indexed | 2024-04-11T23:54:23Z |
| format | Article |
| id | doaj.art-a38299dfd670433f8bb6f2a726920017 |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-04-11T23:54:23Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-a38299dfd670433f8bb6f2a7269200172022-12-22T03:56:24ZengElsevierElectrochemistry Communications1388-24812022-09-01142107376Two-step bipolar anodization: Design of titanium with two different facesYuuka Kokubo0Hidetaka Asoh1Department of Applied Chemistry, Kogakuin University, 2665–1 Nakano, Hachioji, Tokyo 192–0015, JapanCorresponding author.; Department of Applied Chemistry, Kogakuin University, 2665–1 Nakano, Hachioji, Tokyo 192–0015, JapanIn this study, titanium (Ti) with two chemically distinct faces was formed using two-step direct current (DC) bipolar anodization. A Ti sheet was positioned vertically in the center of an electrolytic cell as a bipolar electrode (BPE). The oxidation area on the BPE was visualized using an interference color caused by the formation of a barrier-type oxide film on the Ti BPE in phosphoric acid under a DC electric field. When different voltages were applied between the driving electrodes for the first and second steps, the front and back sides of the BPE showed different colors because of differences in film thickness. Even in the case of a ball-shaped Ti BPE, site-selective film formation could be demonstrated using a wireless and maskless operation, regardless of the shape of the BPE.http://www.sciencedirect.com/science/article/pii/S1388248122001783Two-step bipolar anodizationBipolar electrochemistryTitaniumInterference color |
| spellingShingle | Yuuka Kokubo Hidetaka Asoh Two-step bipolar anodization: Design of titanium with two different faces Electrochemistry Communications Two-step bipolar anodization Bipolar electrochemistry Titanium Interference color |
| title | Two-step bipolar anodization: Design of titanium with two different faces |
| title_full | Two-step bipolar anodization: Design of titanium with two different faces |
| title_fullStr | Two-step bipolar anodization: Design of titanium with two different faces |
| title_full_unstemmed | Two-step bipolar anodization: Design of titanium with two different faces |
| title_short | Two-step bipolar anodization: Design of titanium with two different faces |
| title_sort | two step bipolar anodization design of titanium with two different faces |
| topic | Two-step bipolar anodization Bipolar electrochemistry Titanium Interference color |
| url | http://www.sciencedirect.com/science/article/pii/S1388248122001783 |
| work_keys_str_mv | AT yuukakokubo twostepbipolaranodizationdesignoftitaniumwithtwodifferentfaces AT hidetakaasoh twostepbipolaranodizationdesignoftitaniumwithtwodifferentfaces |