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Performance of PEMFCs with sputter deposited Pt and Pt alloy cathodes

  • E. R. Kreidler
  • , T. He

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

3 Scopus citations

Abstract

A fabrication and testing method was developed to assess the performance of thin film Pt and Pt alloy cathode catalysts in an operating fuel cell. Pt and Pt alloy thin films were sputter deposited onto carbon/Nafion decals and subsequently hot pressed with the catalyst towards the membrane. The results show that improved mass performance and catalyst utilization is observed with Pt thin films and that increased mass activities are achieved with PtCo (76:24) and PtCr (80:20) alloys as compared to pure Pt. Mass activity improvements of 14 mV and 8 mV were observed for the PtCo and PtCr alloys with respect to a pure Pt film with a similar mass loading under 300/350 kPa hydrogen/oxygen operation. Details of fabrication and testing are provided including testing nuances of cathode thin films due to poor water management.

Original languageEnglish
Title of host publicationECS Transactions - 7th Symposium Devoted to Proton Exchange Membrane Fuel Cells
Pages375-382
Number of pages8
Edition1 PART 1
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 1
Volume11
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

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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