Electrochemical properties and contact resistance of titanium in PEFC bipolar plate environment

Yasutaka Soma, Izumi Mute, Nobuyoshi Hara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to assess the applicability of titanium as a bipolar plate for polymer electrolyte fuel cells (PEFCs), the electrochemical surface characteristics of commercially available pure titanium were examined in a simulated PEFC condition. The results of the electrochemical tests showed that the anode and cathode operating potentials of PEFC, -0.36V and 0.64V (vs.Ag/AgCl(3.33M KCl)), lay in the cathodic and anodic polarization regions for Ti, respectively. Under the PEFC cathode condition, a barrier-type film with high charge transfer resistance and high interfacial contact resistance grew on the specimen. Under the PEFC anode condition, an air-formed oxide film dissolved and an oxidation film with low charge transfer resistance and low interfacial contact resistance grew.

Original languageEnglish
Title of host publicationECS Transactions - Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008
Pages23-35
Number of pages13
Edition48
DOIs
Publication statusPublished - 2008 Dec 1
EventCorrosion Posters (General) - 214th ECS Meeting/PRiME 2008 - Honolulu, HI, United States
Duration: 2008 Oct 122008 Oct 17

Publication series

NameECS Transactions
Number48
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherCorrosion Posters (General) - 214th ECS Meeting/PRiME 2008
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

ASJC Scopus subject areas

  • Engineering(all)

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