Alternative SOFC anode materials with ion- and electron-conducting backbones for higher fuel utilization

S. Futamura, Y. Tachikawa, J. Matsuda, S. M. Lyth, Y. Shiratori, S. Taniguchi, K. Sasaki

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

4 Citations (Scopus)

Abstract

Redox-stable anodes are developed for zirconia-based electrolyte-supported solid oxide fuel cells (SOFCs) operating at high fuel utilization, as an alternative to the Ni yttrium-stabilized-zirconia (YSZ) cermet. Gadolinium-doped ceria (GDC, Ce0.9Gd0.1O2) is utilized as a mixed ionic electronic conductor (MIEC), and combined with lanthanum-doped strontium titanate (LST, Sr0.9La0.1TiO3) as an electronic conductor. Catalyst nanoparticles (either Ni or Rh) are incorporated via impregnation. The electrochemical characteristics of SOFC single cells using these anodes are characterized in humidified H2 at 800°C. The stability against redox cycling and under high fuel utilization is analyzed and discussed.

Original languageEnglish
Title of host publicationECS Transactions
EditorsS. C. Singhal, T. Kawada
Pages1179-1187
Number of pages9
Volume78
Edition1
ISBN (Electronic)9781607688150, 9781607688150
DOIs
Publication statusPublished - 30 May 2017
Event15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States
Duration: 23 Jul 201728 Jul 2017

Publication series

NameECS Transactions
Number1
Volume78
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017
Country/TerritoryUnited States
CityHollywood
Period23/07/1728/07/17

Keywords

  • solid oxide fuel cell (SOFC)
  • anode materials
  • redox-stable anodes
  • high fuel utilization
  • Ni yttrium-stabilized-zirconia (YSZ) cermet
  • Gadolinium-doped ceria
  • mixed ionic electronic conductor (MIEC)
  • lanthanum‐doped strontium titanate
  • nanoparticles

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