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

Title
Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells
Authors
오형석임희은장상은고영진김현종김한성
Issue Date
2009-09
Publisher
Journal of power sources
Citation
VOL 193, NO 2-579
Abstract
he influence of humidity, cell temperature and gas-phase O(2) on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO(2) emission at a constant potential of 1.4V 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 O(2) 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.
URI
http://pubs.kist.re.kr/handle/201004/67025
ISSN
0378-7753
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE