Bipolar electrochemistry for high-throughput corrosion screening
2013 (English)In: Electrochemistry communications, ISSN 1388-2481, E-ISSN 1873-1902, Vol. 34, 274-277 p.Article in journal (Refereed) Published
It is demonstrated that bipolar electrochemistry can be used for high-throughput corrosion testing covering a wide potential range in one single experiment and that this, combined with rapid image analysis, constitutes a simple and convenient way to screen the corrosion behaviour of conducting materials and corrosion protective coatings. Stainless steel samples (SS304), acting as bipolar electrodes, were immersed in sulphuric and hydrochloric acid and exposed to an electric field to establish a potential gradient along the surface. In this way, the same steel sample was exposed to a wide range of cathodic and anodic conditions, ranging from potentials yielding hydrogen evolution to potentials well into the transpassive region. This wireless approach enables rapid simultaneous comparison of numerous samples, and also provides the opportunity to perform experiments on samples that are of a complex shape, or which otherwise are difficult to employ in standard electrochemical corrosion tests.
Place, publisher, year, edition, pages
2013. Vol. 34, 274-277 p.
Bipolar electrochemistry, Corrosion, Stainless steel, Screening, Image analysis
Materials Chemistry Inorganic Chemistry
Research subject Materials Science
IdentifiersURN: urn:nbn:se:uu:diva-205921DOI: 10.1016/j.elecom.2013.07.011ISI: 000324963900070OAI: oai:DiVA.org:uu-205921DiVA: diva2:643057
• Bipolar electrochemistry for high-throughput corrosion screening
• Simultaneous evaluation of anodic and cathodic conditions on single samples
• Wireless production of corrosion gradients on stainless steel and image analysis
• Comparison of the bipolar approach with conventional three-electrode experiments2013-08-252013-08-252016-04-04Bibliographically approved