Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution
The observation of a multi-step stripping process at high positive potentials is reported for aluminium electrodeposition from a solution of AlCl3 in the air- and water-stable ionic liquid 1-butyl-1- methylpyrrolidinium bis(trifluoromethylsulfonyl)imide. Cyclic voltammograms recorded on an aluminium...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Inc.
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/52161 |
| _version_ | 1848758860599263232 |
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| author | Veder, Jean-pierre Horne, M. Rüther, T. Bond, A. Rodopoulos, T. |
| author_facet | Veder, Jean-pierre Horne, M. Rüther, T. Bond, A. Rodopoulos, T. |
| author_sort | Veder, Jean-pierre |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The observation of a multi-step stripping process at high positive potentials is reported for aluminium electrodeposition from a solution of AlCl3 in the air- and water-stable ionic liquid 1-butyl-1- methylpyrrolidinium bis(trifluoromethylsulfonyl)imide. Cyclic voltammograms recorded on an aluminium-coated boron-doped diamond electrode revealed complex oxidative behaviour, suggesting that a passive layer forms on the freshly deposited aluminium that hinders electro-oxidation. High positive potentials are required to induce chloride attack of the passive film, composed of Al-NTf 2 compounds, and facilitate the rapid oxidation of the underlying aluminium metal. These results have important implications in bipolar-pulse electroplating and electrorefining applications where electrodissolution of aluminium is required. © 2013 Published by Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T09:50:42Z |
| format | Journal Article |
| id | curtin-20.500.11937-52161 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:50:42Z |
| publishDate | 2013 |
| publisher | Elsevier Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-521612023-08-02T06:39:08Z Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution Veder, Jean-pierre Horne, M. Rüther, T. Bond, A. Rodopoulos, T. The observation of a multi-step stripping process at high positive potentials is reported for aluminium electrodeposition from a solution of AlCl3 in the air- and water-stable ionic liquid 1-butyl-1- methylpyrrolidinium bis(trifluoromethylsulfonyl)imide. Cyclic voltammograms recorded on an aluminium-coated boron-doped diamond electrode revealed complex oxidative behaviour, suggesting that a passive layer forms on the freshly deposited aluminium that hinders electro-oxidation. High positive potentials are required to induce chloride attack of the passive film, composed of Al-NTf 2 compounds, and facilitate the rapid oxidation of the underlying aluminium metal. These results have important implications in bipolar-pulse electroplating and electrorefining applications where electrodissolution of aluminium is required. © 2013 Published by Elsevier B.V. All rights reserved. 2013 Journal Article http://hdl.handle.net/20.500.11937/52161 10.1016/j.elecom.2013.10.015 Elsevier Inc. restricted |
| spellingShingle | Veder, Jean-pierre Horne, M. Rüther, T. Bond, A. Rodopoulos, T. Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution |
| title | Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution |
| title_full | Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution |
| title_fullStr | Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution |
| title_full_unstemmed | Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution |
| title_short | Aluminium oxidation at high anodic potentials in an AlCl 3-containing air- and water-stable ionic liquid solution |
| title_sort | aluminium oxidation at high anodic potentials in an alcl 3-containing air- and water-stable ionic liquid solution |
| url | http://hdl.handle.net/20.500.11937/52161 |