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

Yasutaka Soma; Izumi Mute; Nobuyoshi Hara

doi:10.1149/1.3149566

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

Yasutaka Soma, Izumi Mute, Nobuyoshi Hara

ENG - Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	ECS Transactions - Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008
Publisher	Electrochemical Society Inc.
Pages	23-35
Number of pages	13
Edition	48
ISBN (Print)	9781615676415
DOIs	https://doi.org/10.1149/1.3149566
Publication status	Published - 2009
Event	Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008 - Honolulu, HI, United States Duration: 2008 Oct 12 → 2008 Oct 17

Publication series

Name	ECS Transactions
Number	48
Volume	16
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008
Country/Territory	United States
City	Honolulu, HI
Period	08/10/12 → 08/10/17

ASJC Scopus subject areas

Engineering(all)

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10.1149/1.3149566

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Electrochemical properties and contact resistance of titanium in PEFC bipolar plate environment. / Soma, Yasutaka; Mute, Izumi; Hara, Nobuyoshi.
ECS Transactions - Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008. 48. ed. Electrochemical Society Inc., 2009. p. 23-35 (ECS Transactions; Vol. 16, No. 48).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Soma, Y, Mute, I & Hara, N 2009, Electrochemical properties and contact resistance of titanium in PEFC bipolar plate environment. in ECS Transactions - Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008. 48 edn, ECS Transactions, no. 48, vol. 16, Electrochemical Society Inc., pp. 23-35, Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008, Honolulu, HI, United States, 08/10/12. https://doi.org/10.1149/1.3149566

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title = "Electrochemical properties and contact resistance of titanium in PEFC bipolar plate environment",

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.",

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T1 - Electrochemical properties and contact resistance of titanium in PEFC bipolar plate environment

AU - Soma, Yasutaka

AU - Mute, Izumi

AU - Hara, Nobuyoshi

PY - 2009

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N2 - 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.

AB - 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.

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EP - 35

BT - ECS Transactions - Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008

PB - Electrochemical Society Inc.

T2 - Corrosion Posters (General) - 214th ECS Meeting/PRiME 2008

Y2 - 12 October 2008 through 17 October 2008

ER -

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

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