Semiconducting behavior of pure copper in alkaline solutions
The corrosion resistance of passive film is correlated with its semiconducting properties, which can be measured by the Mott–Schottky analysis in high frequency domain. In this study, the semiconducting behavior of passive films formed on pure copper in aqueous NaOH solutions was investigated using...
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| Language: | English |
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Egyptian Petroleum Research Institute
2015-12-01
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| Series: | Egyptian Journal of Petroleum |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110062115000781 |
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| author | A. Fattah-alhosseini M.K. Keshavarz A. Masomi S. Marianaji |
| author_facet | A. Fattah-alhosseini M.K. Keshavarz A. Masomi S. Marianaji |
| author_sort | A. Fattah-alhosseini |
| collection | DOAJ |
| description | The corrosion resistance of passive film is correlated with its semiconducting properties, which can be measured by the Mott–Schottky analysis in high frequency domain. In this study, the semiconducting behavior of passive films formed on pure copper in aqueous NaOH solutions was investigated using Mott–Schottky analysis. The polarization curves suggested that pure copper shows comparable passive behavior in NaOH solutions with different concentrations. Also, the potentiodynamic polarization curves showed corrosion current densities reduction with decrease in concentration of NaOH solutions. In Mott–Schottky analysis, no evidence of n-type semiconducting behavior was found, indicating that oxygen vacancies and copper interstitials do not have a significant population density in the passive film. Also, this analysis indicated that with the decrease of NaOH concentration in the solution, the acceptor density of passive films increases. |
| format | Article |
| id | doaj-art-b8a4e46dbf204bd1b9fb7958a9f1f49c |
| institution | OA Journals |
| issn | 1110-0621 |
| language | English |
| publishDate | 2015-12-01 |
| publisher | Egyptian Petroleum Research Institute |
| record_format | Article |
| series | Egyptian Journal of Petroleum |
| spelling | doaj-art-b8a4e46dbf204bd1b9fb7958a9f1f49c2025-08-20T02:00:23ZengEgyptian Petroleum Research InstituteEgyptian Journal of Petroleum1110-06212015-12-0124440540910.1016/j.ejpe.2014.09.012Semiconducting behavior of pure copper in alkaline solutionsA. Fattah-alhosseini0M.K. Keshavarz1A. Masomi2S. Marianaji3Faculty of Engineering, Bu-Ali Sina University, Hamedan 65178-38695, IranDepartment of Engineering Physics, Ecole Polytechnique de Montreal, Montreal, CanadaFaculty of Engineering, Bu-Ali Sina University, Hamedan 65178-38695, IranFaculty of Engineering, Bu-Ali Sina University, Hamedan 65178-38695, IranThe corrosion resistance of passive film is correlated with its semiconducting properties, which can be measured by the Mott–Schottky analysis in high frequency domain. In this study, the semiconducting behavior of passive films formed on pure copper in aqueous NaOH solutions was investigated using Mott–Schottky analysis. The polarization curves suggested that pure copper shows comparable passive behavior in NaOH solutions with different concentrations. Also, the potentiodynamic polarization curves showed corrosion current densities reduction with decrease in concentration of NaOH solutions. In Mott–Schottky analysis, no evidence of n-type semiconducting behavior was found, indicating that oxygen vacancies and copper interstitials do not have a significant population density in the passive film. Also, this analysis indicated that with the decrease of NaOH concentration in the solution, the acceptor density of passive films increases.http://www.sciencedirect.com/science/article/pii/S1110062115000781CopperMott–SchottkyPassive filmAlkaline solution |
| spellingShingle | A. Fattah-alhosseini M.K. Keshavarz A. Masomi S. Marianaji Semiconducting behavior of pure copper in alkaline solutions Egyptian Journal of Petroleum Copper Mott–Schottky Passive film Alkaline solution |
| title | Semiconducting behavior of pure copper in alkaline solutions |
| title_full | Semiconducting behavior of pure copper in alkaline solutions |
| title_fullStr | Semiconducting behavior of pure copper in alkaline solutions |
| title_full_unstemmed | Semiconducting behavior of pure copper in alkaline solutions |
| title_short | Semiconducting behavior of pure copper in alkaline solutions |
| title_sort | semiconducting behavior of pure copper in alkaline solutions |
| topic | Copper Mott–Schottky Passive film Alkaline solution |
| url | http://www.sciencedirect.com/science/article/pii/S1110062115000781 |
| work_keys_str_mv | AT afattahalhosseini semiconductingbehaviorofpurecopperinalkalinesolutions AT mkkeshavarz semiconductingbehaviorofpurecopperinalkalinesolutions AT amasomi semiconductingbehaviorofpurecopperinalkalinesolutions AT smarianaji semiconductingbehaviorofpurecopperinalkalinesolutions |