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Bipolar plate materials for PEMFCs: A conductivity and stability study

TitoloBipolar plate materials for PEMFCs: A conductivity and stability study
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2008
AutoriPozio, A., Zaza F., Masci A., and Silva R.F.
RivistaJournal of Power Sources
Volume179
Paginazione631-639
ISSN03787753
Parole chiaveChromium nitrides, Corrosion resistance, Electric conductivity, Interfacial contact resistance, Nickel alloys, Physical vapor deposition, Proton exchange membrane fuel cells (PEMFC), Stainless steel, Surface chemistry
Abstract

Commercial stainless steels, Ni-based alloys and physical vapor deposition (PVD) chromium nitride (CrN)-coated stainless steels were evaluated as possible metallic bipolar plate materials in conditions that resemble a typical PEMFC cathode environment with respect to their interfacial contact resistance (ICR) and corrosion resistance. Results show that stainless steels have a high ICR and undergo corrosion. Although Ni-based alloys showed an ICR value comparable as to that of graphite, their behaviour was not satisfactory in a corrosive acidic medium. Only CrN-coated stainless steels demonstrated to have low ICR values and a very good corrosion resistance. © 2008 Elsevier B.V. All rights reserved.

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cited By 94

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-40849095898&doi=10.1016%2fj.jpowsour.2008.01.038&partnerID=40&md5=daf7dce2e5319c2a64db79f85b9ca6bd
DOI10.1016/j.jpowsour.2008.01.038
Citation KeyPozio2008631