Influence of metal impurities on carbon corrosion in Phosphoric Acid Fuel Cells (PAFC)

Authors
Kiho, M Matsunaga, K Morikawa, S Kato, O
Citation
M. Kiho et al., Influence of metal impurities on carbon corrosion in Phosphoric Acid Fuel Cells (PAFC), ELECTROCH, 69(8), 2001, pp. 580-586
Citations number
18
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
ELECTROCHEMISTRY
ISSN journal
13443542 → ACNP
Volume
69
Issue
8
Year of publication
2001
Pages
580 - 586
Database
ISI
SICI code
1344-3542(200108)69:8<580:IOMIOC>2.0.ZU;2-P
Abstract
The durability of the Phosphoric Acid Fuel Cell (PAFC) is greatly affected by the corrosion rate of carbon which is an essential material of PAFC. Thi s study examines the influence of carbon material impurities on corrosion r ates in hot phosphoric acid. Impurity doping was found to enhance oxidation of carbon materials in phosphoric acid. The influence of vanadium (V) and calcium (Ca), which were highly dispersed on the carbon surface, was signif icant. Impurity doping content was found to increase corrosion current.