Surface modification of LaNi0.6Fe0.4O3-δ film electrode by Ce0.9Gd0.1O1.95 porous layer

R. A. Budiman, T. Miyazaki, S. Hashimoto, K. Yashiro, K. Amezawa, T. Kawada

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

2 Citations (Scopus)

Abstract

The Ce0.9Gd0.1O1.95 porous layer was deposited into the top of LaNi0.6Fe0.4O3-δ film electrode and compared to the bare LaNi0.6Fe0.4O3-δ film electrode to determine the surface oxygen exchange rate. The measurement has been done by electrochemical impedance spectroscopy and isotope exchange experiment under various temperatures and oxygen partial pressures. The surface oxygen exchange rate of LaNi0.6Fe0.4O3-δ film - Ce0.9Gd0.1O1.95 porous layer was enhanced compared to the bare LaNi0.6Fe0.4O3-d film electrode. The role of Ce0.9Gd0.1O1.95 was the promotion of incorporation step on the oxygen reduction process in the electrode as the reason of the enhancement of surface oxygen exchange rate. An Auger electron spectroscopy measurement has been done to investigate the compositional change at the LaNi0.6Fe0.4O3-δ film surface. No compositional change was observed on the LaNi0.6Fe0.4O3-δ film surface which can be associated to the enhancement of surface oxygen exchange rate.

Original languageEnglish
Title of host publicationSolid-Gas Electrochemical Interfaces � SGEI 1
EditorsM. B. Mogensen, E. Ivers-Tiffee, T. Kawada, S. B. Adler
PublisherElectrochemical Society Inc.
Pages161-168
Number of pages8
Edition2
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2015 Jan 1
Event1st Symposium on Solid-Gas Electrochemical Interfaces, SGEI 2015 - 227th ECS Meeting - Chicago, United States
Duration: 2015 May 242015 May 28

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
Period15/5/2415/5/28

ASJC Scopus subject areas

  • Engineering(all)

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    Budiman, R. A., Miyazaki, T., Hashimoto, S., Yashiro, K., Amezawa, K., & Kawada, T. (2015). Surface modification of LaNi0.6Fe0.4O3-δ film electrode by Ce0.9Gd0.1O1.95 porous layer. In M. B. Mogensen, E. Ivers-Tiffee, T. Kawada, & S. B. Adler (Eds.), Solid-Gas Electrochemical Interfaces � SGEI 1 (2 ed., pp. 161-168). (ECS Transactions; Vol. 66, No. 2). Electrochemical Society Inc.. https://doi.org/10.1149/06602.0161ecst