Rouvre, Ingrid and Basséguy, Régine
Exacerbation of the mild steel corrosion process by direct electron transfer between [Fe-Fe]-hydrogenase and material surface.
(2016)
Corrosion Science, 111. 199-211. ISSN 0010-938X
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(Document in English)
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Official URL: https://doi.org/10.1016/j.corsci.2016.05.005
Abstract
The influence of [Fe-Fe]-hydrogenase from Clostridium acetobutylicum on the anaerobic corrosion of mild steel was studied and the use of a dialysis bag to contain the enzyme in the close vicinity of the electrode surface led to conclusive tests. Electrochemical measurements (open-circuit potential monitoring, corrosion rate evolution, impedance), and surface and medium analysis, all confirmed the strong effect of hydrogenase to exacerbate the corrosion process. Electrolysis performed at a cathodic potential proved that hydrogenase catalysed the electrochemical reduction of protons or water into dihydrogen by direct electron transfer, demonstrating the involvement of hydrogenase in cathodic depolarisation.
Item Type: | Article |
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HAL Id: | hal-01907316 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
Laboratory name: | |
Statistics: | download |
Deposited On: | 22 Oct 2018 11:56 |
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