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Development of stable Pt-Co cathode catalysts for PEM fuel cells

  • Xuguang Li
  • , Héctor R. Colón-Mercado
  • , Gang Wu
  • , Jong Won Lee
  • , Branko N. Popov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A new procedure was developed to synthesize a platinum-cobalt (Pt-Co) alloy catalyst for oxygen reduction using Co/C composite as a support. The Co/C composite was synthesized using a chelation approach and treated in an acidic solution to remove excess of Co. Nano-sized Pt was deposited onto the Co/C support, followed by a heat-treatment to form Pt-Co alloy. The Pt-Co/C catalyst showed improved activity and long-term stability in PEM fuel cells when compared with a conventional Pt-Co/C. Durability studies and electron probe microanalysis indicated that the Co content in the alloy remains stable without poisoning the electrolyte membrane during long-term operation.

Original languageEnglish
Title of host publicationECS Transactions - 7th Symposium Devoted to Proton Exchange Membrane Fuel Cells
Pages1259-1266
Number of pages8
Edition1 PART 2
DOIs
StatePublished - 2007
Event7th Symposium Devoted to Proton Exchange Membrane Fuel Cells - 212th ECS Meeting - Washington, DC, United States
Duration: Oct 7 2007Oct 12 2007

Publication series

NameECS Transactions
Number1 PART 2
Volume11

Conference

Conference7th Symposium Devoted to Proton Exchange Membrane Fuel Cells - 212th ECS Meeting
Country/TerritoryUnited States
CityWashington, DC
Period10/7/0710/12/07

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