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http://hdl.handle.net/10773/20572| Title: | Novel diamond microelectrode for pH sensing |
| Author: | Silva, E. L. Bastos, A. C. Neto, M. A. Silva, R. F. Ferreira, M. G. S. Zheludkevich, M. L. Oliveira, F. J. |
| Keywords: | GALVANIC CORROSION ZN/STEEL COUPLE HIGH-RESOLUTION FILMS ZN2+ |
| Issue Date: | 2014 |
| Publisher: | ELSEVIER SCIENCE INC |
| Abstract: | A novel diamond based solid-contact pH-selective microelectrode is reported in the paper for the first time. The diamond films were grown on top of sharp tungsten filaments by HFCVD (Hot Filament Chemical Vapor Deposition). The pH sensitivity of the electrode is achieved via oxygen-termination of the diamond surface with RF oxygen plasma. The MEs were calibrated by zero-current chronopotentiometry registering linearity in the pH 2-12 range. The performance of the diamond microelectrode was demonstrated mapping the pH distribution over corroding Zn-Fe model galvanic cell. (C) 2013 Elsevier B.V. All rights reserved. |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/20572 |
| DOI: | 10.1016/j.elecom.2013.12.007 |
| ISSN: | 1388-2481 |
| Publisher Version: | 10.1016/j.elecom.2013.12.007 |
| Appears in Collections: | CICECO - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Novel diamond microelectrode for pH sensing_10.1016j.elecom.2013.12.007.pdf | 507.59 kB | Adobe PDF |  |
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