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Electrochemical red...
Electrochemical reduction modeling of copper oxides obtained during in situ and ex situ conditions in the presence of acetic acid
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- Gil, Harveth (author)
- Department of Materials, University of Antioquia,Corrosion and Protection Group
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- Echavarria, Alejandro (author)
- Department of Materials, University of Antioquia,Corrosion and Protection Group
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- Echeverria, Felix (author)
- Department of Materials, University of Antioquia,Corrosion and Protection Group
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(creator_code:org_t)
- Elsevier, 2009
- 2009
- English.
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In: Electrochimica Acta. - : Elsevier. - 0013-4686 .- 1873-3859. ; 54:20, s. 4676-4681
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- We used the potentiodynamic reduction technique to study the mechanism of copper oxide formation inthe presence of acetic acid.We performed all reductions under neutral conditions (0.1MKCl) until hydrogenevolution. We produced the copper oxides in an environment containing 0, 500, and 800 ppb aceticacid at high relative humidity. We then compared experimental results between electrochemically producedoxide films obtained by imposing anodic potentials to copper specimens in several concentrationsof pure acetic acid (1, 0.1, 0.01 and 0.001 M). We found that, as the concentration of the acid decreases,the formation of the copper oxide (I) increases.We also found the same peaks in samples produced underthe synthetic environment.We modeled the curves, taking into account the electrochemical reduction ofcopper (II) oxide (CuO), amorphous cuprite (Cu2O)am, intermediate cuprite (Cu2O)in, crystalline cuprite(Cu2O)cr, and hydrogen. These oxides have been previously detected in similar conditions. We found noevidence of copper carboxylate founding samples produced by the electrochemical method.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Korrosionsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Corrosion Engineering (hsv//eng)
Keyword
- potentiodynamic reduction
- atmospheric corrosion
- copper
- acetic acid
- copper oxides
Publication and Content Type
- ref (subject category)
- art (subject category)
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