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ECN publicatie:
Titel:
The influence of carbon dioxide on PEM fuel cell anodes
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN SF 1-10-2001
 
ECN publicatienummer: Publicatie type:
ECN-RX--01-065 Artikel wetenschap tijdschrift
 
Aantal pagina's:
23  

Gepubliceerd in: Journal of Power Sources (Elsevier), , 2002, Vol.110, p.117-124.

Samenvatting:
The influence of CO2 on the performance of PEM fuel cells was investigatedby means of fuel cell experiments and cyclic voltammetry. Depending on the composition and microstructure of the fuel cell anode, the effect varies from small to significant. Adsorbed hydrogen plays a domi-nant role in the formation of CO-like species via the reverse water gas shift reaction. Platinum sites which are not utilised in the electrochemical oxidation of hydrogen are thought to catalyse this reverse shift reaction. Alloying with ruthenium suppresses the reverse shift reaction.


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