Enhancement of surface oxygen exchange kinetics for Pr0.1Ce0.9O2-δ with deposition of La or Sm oxide

L. Zhao, N. H. Perry, K. Sasaki, S. R. Bishop

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

Abstract

Rapid oxygen transport across the gas/solid interface (oxygen exchange) is critical for solid oxide fuel cell electrode performance. In this work, La and Sm are shown to dramatically improve the oxygen exchange rate on Pr0.1Ce0.9O2-δ thin films (>50 x at 450 °C) as compared to a freshly deposited film without La or Sm oxide. A surface cleaning effect from the La and Sm is suspected as the source of the enhancement, though catalytic activity from La and Sm may also play a role.

Original languageEnglish (US)
Title of host publicationSolid-Gas Electrochemical Interfaces � SGEI 1
EditorsM. B. Mogensen, E. Ivers-Tiffee, T. Kawada, S. B. Adler
PublisherElectrochemical Society Inc.
Pages157-160
Number of pages4
Edition2
ISBN (Electronic)9781607685395
DOIs
StatePublished - Jan 1 2015
Externally publishedYes
Event1st Symposium on Solid-Gas Electrochemical Interfaces, SGEI 2015 - 227th ECS Meeting - Chicago, United States
Duration: May 24 2015May 28 2015

Publication series

NameECS Transactions
Number2
Volume66
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Other

Other1st Symposium on Solid-Gas Electrochemical Interfaces, SGEI 2015 - 227th ECS Meeting
CountryUnited States
CityChicago
Period5/24/155/28/15

ASJC Scopus subject areas

  • Engineering(all)

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