Characterization of durable nanostructured thin film catalysts tested under transient conditions using analytical aberration-corrected electron microscopy

D. A. Cullen, K. L. More, K. S. Reeves, G. D. Vernstrom, L. L. Atanasoska, G. M. Haugen, R. T. Atanasoski

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

8 Scopus citations

Abstract

The stability of Ru0.1Ir0.9 oxidation evolution reaction (OER) catalysts deposited on Pt-coated nanostructured thin films (NSTFs) has been investigated by aberration-corrected electron microscopy. Accelerated stress tests showed that the OER catalysts significantly improved the durability of the Pt under cell reversal conditions. High-resolution images of the end-of-life NSTFs showed significant Ir loss from the whisker surfaces, while no Pt loss was observed. The retention of the Pt indicated that the OER catalysts had protected the catalyst-coated whisker surfaces from degradation.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 11
PublisherElectrochemical Society Inc.
Pages1099-1103
Number of pages5
Edition1
ISBN (Electronic)9781607682547
ISBN (Print)9781607682547
DOIs
StatePublished - 2011
Event11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, United States
Duration: Oct 9 2011Oct 14 2011

Publication series

NameECS Transactions
Number1
Volume41
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
Country/TerritoryUnited States
CityBoston, MA
Period10/9/1110/14/11

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