Application of chemical imaging sensor to in-situ pH imaging in the vicinity of a corroding metal surface
- The chemical imaging sensor was applied to in-situ pH imaging of the solution in the vicinity of a corroding surface of stainless steel under potentiostatic polarization. A test piece of polished stainless steel was placed on the sensing surface leaving a narrow gap filled with artificial seawater and the stainless steel was corroded under polarization. The pH images obtained during polarization showed correspondence between the region of lower pH and the site of corrosion. It was also found that the pH value in the gap became as low as 2 by polarization, which triggered corrosion.
| Author: | Ko-ichiro Miyamato, Sakura Sakakita, Torsten WagnerORCiD, Michael Josef SchöningORCiD, Tatsuo Yoshinobu |
|---|---|
| DOI: | https://doi.org/10.1016/j.electacta.2015.07.184 |
| ISSN: | 0013-4686 |
| Parent Title (English): | Electrochimica Acta |
| Publisher: | Elsevier |
| Place of publication: | Amsterdam |
| Document Type: | Article |
| Language: | English |
| Year of Completion: | 2015 |
| Volume: | 183 |
| First Page: | 137 |
| Last Page: | 142 |
| Link: | https://doi.org/10.1016/j.electacta.2015.07.184 |
| Zugriffsart: | campus |
| Institutes: | FH Aachen / Fachbereich Medizintechnik und Technomathematik |
| FH Aachen / INB - Institut für Nano- und Biotechnologien | |
| collections: | Verlag / Elsevier |
