The Use of Heteropoly Acids as Supports for Low, Ultra-Stable Pt Electrocatalysts

Andrew M. Herring, Ronald J. Stanis, Mei Chen Kuo, John A. Turner

Research output: Contribution to journalArticlepeer-review

3 Scopus Citations


We have successfully immobilized several HPA on carbons using covalent attachment. The morphology of these materials is still under investigation, but the hybrid HPA carbons can be used to stabilize nano-Pt particles. The fuel cell performance is not improved over a suitable control electrode. If the correct HPA is used it appears that significant advantages can be obtained in fuel cell catalyst layer stability. Stability over 4000 cycles has been achieved. Encouragingly the F+ emission rates from the MEA can be dramatically reduced.

Original languageAmerican English
Pages (from-to)335-346
Number of pages12
JournalECS Transactions
Issue number1 PART 1
StatePublished - 2007
Event7th Symposium Devoted to Proton Exchange Membrane Fuel Cells - 212th ECS Meeting - Washington, DC, United States
Duration: 7 Oct 200712 Oct 2007

NREL Publication Number

  • NREL/JA-2A0-44113


  • fuel cells
  • hydrogen
  • performance
  • stability


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