Fast test for the durability of PEM fuel cell catalysts

Yuyan Shao, Rong Kou, Jun Wang, Ja Hun Kwak, Vish Viswanathan, Yong Wang, Jun Liu, Yuehe Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

ETek Pt/C catalyst was used as standard materials to develop a new test protocol for fast screening durable catalyst for PEM fuel cells. Potential step (Pstep) method with the upper potential of 1.4V under low potential of 0.85V/0.60V and the potential-static (Pstat) holding at 1.4 V or 1.2V are used to degrade the catalyst. The degradation in the electrochemical surface area (ESA) for Pt/C under Pstep conditions is greatly accelerated as compared with that under other conditions. The durability of Pt/Vulcan and Pt/CNT were studied using the new protocol with the electrochemical stressing of Pstep(1.4V/0.6V), which provided the same results as those tested using conventional protocols: Pt/CNT is more durable than Pt/Vulcan. This confirms that the new protocol works well in screening catalyst in terms of durability. The new protocol can differentiate the durability of electrocatalysts by shortening the test time to several hours.

Original languageEnglish (US)
Title of host publicationECS Transactions - Proton Exchange Membrane Fuel Cells 8
Pages361-366
Number of pages6
Edition2 PART 1
DOIs
StatePublished - 2008
EventProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting - Honolulu, HI, United States
Duration: Oct 12 2008Oct 17 2008

Publication series

NameECS Transactions
Number2 PART 1
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period10/12/0810/17/08

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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