Corrosion resistance and sintering effect of carbon supports in polymer electrolyte membrane fuel cells

Title
Corrosion resistance and sintering effect of carbon supports in polymer electrolyte membrane fuel cells
Authors
오형석임희은노범욱황인철김한성
Keywords
Carbon nanocage; Carbon corrosion; Mass spectrometry; PEM fuel cell
Issue Date
2009-11
Publisher
Electrochimica acta
Citation
VOL 54, NO 2-6521
Abstract
The corrosion resistance of carbon black, carbon nanofiber and carbon nanocage used as catalyst supports in fuel cells was investigated by monitoring CO2 emission using on-line mass spectrometry when 1.4 V was applied for 30 min. The changes associated with the carbon corrosion were assessed through electrochemical methods. In general, graphitized carbon supports were more corrosion-resistant than amorphous carbon black. However, the degree of graphitization did not directly correlate with higher resistance to corrosion. Hydrophobicity was critical in enhancing resistance to corrosion. When sintering of Pt particles was considered, carbon nanocages were more resistant than nanofibers. The present findings thus indicate that the carbon nanocage is an appropriate catalyst support in fuel cell systems.
URI
http://pubs.kist.re.kr/handle/201004/67201
ISSN
0013-4686
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