Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7738846 | Journal of Power Sources | 2014 | 13 Pages |
Abstract
An electrochemical surface treatment is presented that improves the properties of stainless steel (316SS) used as bipolar plates for polymer electrolyte fuel cells (PEFCs). The process is an anodic treatment, whereby the material is polarised beyond the transpassive region. Potentiodynamic corrosion testing, chemical and morphological surface characterisation and interfacial contact resistance measurements indicate that the improved properties of 316SS are primarily a consequence of an enrichment of Cr at the near-surface of the material. The surface treatment increases the corrosion resistance and significantly reduces interfacial contact resistance.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Ebrahim M. Gabreab, Gareth Hinds, Sarah Fearn, David Hodgson, Jason Millichamp, Paul R. Shearing, Daniel J.L. Brett,