Influence of Hydrogen and Operation Conditions on CO2 Adsorption on Pt and PtRu Catalyst in a PEMFC
2013 (English)In: ECS Electrochemistry Letters, ISSN 2162-8726, Vol. 2, no 5, F41-F43 p.Article in journal (Refereed) Published
CO2 is a major component in reformate gas and can, as a source of CO, be a catalyst poison in polymer electrolyte membrane fuel cells. The effect of CO2 on cell performance is not fully understood in the presence of hydrogen. This paper addresses the influence of hydrogen on CO2 adsorption on Pt/C and PtRu/C catalysts. The results show that the reduction and adsorption of CO2 is slow but increases if hydrogen is present, especially on PtRu/C. Further, exposure to a CO2 and H-2 mixture at 0.15 V on PtRu/C results in current oscillations, which are dependent on operation conditions.
Place, publisher, year, edition, pages
2013. Vol. 2, no 5, F41-F43 p.
Membrane Fuel-Cells, Gas Shift Reaction, Carbon-Dioxide, Oxidation, Monoxide, Anode, Electrocatalysts, Oscillations, Spectroscopy, Performance
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-123638DOI: 10.1149/2.008305eelISI: 000318556600007ScopusID: 2-s2.0-84880445075OAI: oai:DiVA.org:kth-123638DiVA: diva2:630144
QC 201506262013-06-182013-06-132016-10-07Bibliographically approved