Effect of high surface area Pd electrodes on SOFC performance at 350°C

J. Komadina, M. Motoyama, Y. B. Kim, F. B. Prinz

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

3 Citations (Scopus)

Abstract

Nanostructured palladium, a mixed ionic electronic conductor, is investigated as a high surface area electrode material for low temperature solid oxide fuel cells. Fuel cell polarization studies show a nearly two-fold increase in current and power density at 350°C, although estimation of kinetic parameters suggests that the effect is not related directly to the electrode structuring. Electrochemical impedance spectroscopy shows a significant difference in electrolyte conductivity, and the effects of the electrolyte-electrode interface cannot be ruled out as the source of differences in device performance. Progress in fabrication of vertically aligned nanowires on free-standing thin film electrolyte membranes is discussed briefly. However, the primary focus is on lyotropic phase deposition of mesoporous Pd.

Original languageEnglish
Title of host publicationGrand Challenges in Energy Conversion and Storage
Pages35-41
Number of pages7
Edition46
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventGrand Challenges in Energy Conversion and Storage - 220th ECS Meeting - Boston, MA, United States
Duration: Oct 9 2011Oct 14 2011

Publication series

NameECS Transactions
Number46
Volume41
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceGrand Challenges in Energy Conversion and Storage - 220th ECS Meeting
Country/TerritoryUnited States
CityBoston, MA
Period10/9/1110/14/11

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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