Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells

Katie Heeyum Lim, Hyung Suk Oh, Sang Eun Jang, Young Jin Ko, Hyun Jong Kim, Hansung Kim

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

The influence of humidity, cell temperature and gas-phase O2 on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO2 emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O2 has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.

Original languageEnglish
Pages (from-to)575-579
Number of pages5
JournalJournal of Power Sources
Volume193
Issue number2
DOIs
Publication statusPublished - 2009 Sep 5

Fingerprint

Proton exchange membrane fuel cells (PEMFC)
fuel cells
corrosion
Carbon
electrolytes
Corrosion
membranes
carbon
polymers
humidity
Fuel cells
Atmospheric humidity
Gases
vapor phases
electrochemical corrosion
Electrochemical corrosion
cells
durability
Mass spectrometry
Durability

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Lim, Katie Heeyum ; Oh, Hyung Suk ; Jang, Sang Eun ; Ko, Young Jin ; Kim, Hyun Jong ; Kim, Hansung. / Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells. In: Journal of Power Sources. 2009 ; Vol. 193, No. 2. pp. 575-579.
@article{23683000f1564add908d2b725f68166c,
title = "Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells",
abstract = "The influence of humidity, cell temperature and gas-phase O2 on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO2 emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O2 has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.",
author = "Lim, {Katie Heeyum} and Oh, {Hyung Suk} and Jang, {Sang Eun} and Ko, {Young Jin} and Kim, {Hyun Jong} and Hansung Kim",
year = "2009",
month = "9",
day = "5",
doi = "10.1016/j.jpowsour.2009.04.006",
language = "English",
volume = "193",
pages = "575--579",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",
number = "2",

}

Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells. / Lim, Katie Heeyum; Oh, Hyung Suk; Jang, Sang Eun; Ko, Young Jin; Kim, Hyun Jong; Kim, Hansung.

In: Journal of Power Sources, Vol. 193, No. 2, 05.09.2009, p. 575-579.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells

AU - Lim, Katie Heeyum

AU - Oh, Hyung Suk

AU - Jang, Sang Eun

AU - Ko, Young Jin

AU - Kim, Hyun Jong

AU - Kim, Hansung

PY - 2009/9/5

Y1 - 2009/9/5

N2 - The influence of humidity, cell temperature and gas-phase O2 on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO2 emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O2 has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.

AB - The influence of humidity, cell temperature and gas-phase O2 on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO2 emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O2 has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.

UR - http://www.scopus.com/inward/record.url?scp=67649411545&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67649411545&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2009.04.006

DO - 10.1016/j.jpowsour.2009.04.006

M3 - Article

AN - SCOPUS:67649411545

VL - 193

SP - 575

EP - 579

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

IS - 2

ER -