CO tolerance of Pt-W electrocatalysts for polymer electrolyte fuel cells

E. Passalacqua, F. Lufrano, G. Squadrito, A. Patti, L. Giorgi

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Abstract

The performance of Pt-W electrocatalysts as CO tolerant anodes in polymer electrolyte fuel cells (PEFCs) was evaluated and compared with Pt-Ru, Pt-Sn and Pt anodes. Testing were carried out in pure hydrogen and in presence of 100 ppm CO. CO tolerance was measured as the loss in the cell voltage due to CO in the H2normalised to a pure H2fed standard anode. A voltage loss less than 25% at 0.6 A/cm2was measured at 90°C with Pt50Ru50/C and Pt50W50/C anodes. The promising results obtained with Pt-W binary anode catalyst, though non conclusive what concerns the stability render this catalyst interesting for further investigation. Electrocatalyst, Pt-W alloy, CO oxidation, CO poisoning, CO tolerance.
Original languageEnglish
Pages (from-to)131 - 135
Number of pages5
JournalJournal of New Materials for Electrochemical Systems
Volume3
Issue number2
Publication statusPublished - 2000
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrochemistry

Cite this

Passalacqua, E., Lufrano, F., Squadrito, G., Patti, A., & Giorgi, L. (2000). CO tolerance of Pt-W electrocatalysts for polymer electrolyte fuel cells. Journal of New Materials for Electrochemical Systems, 3(2), 131 - 135.