Ni-Fe bimetallic anode for intermediate temperature solid oxide fuel cells using LaGaO3 based oxide electrolyte

Tatsumi Ishihara, Masashi Shinagawa, Akira Kawakami, Hiroshige Matsumoto

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

6 Citations (Scopus)

Abstract

Effects of various additives to Ni anode on SOFC using La 0.9Sr0.1Ga0.8Mg0.2O3 based oxide were investigated in this study, Among the examined additives, it was found that the addition of small amount of Fe is highly effective for increasing the anodic activity. When 5 wt% Fe was added to Ni anode, the anodic overpotential was as small as 34 mV at 873 K, 0.1 A/cm2, which is almost half of pure Ni anode. Since the estimated activation energy for anodic reaction decreased, addition of Fe to Ni seems to be effective for increasing the activity of Ni for anodic reaction. XRD measurement after power generating property suggests that added Fe was formed alloy with Ni. SEM observation shows the high dispersion of Ni metal was sustained by addition of small amount of Fe. Consequently, this study reveals that Ni-Fe bimetal is highly active for anodic reaction of SOFCs at decreased temperature.

Original languageEnglish
Title of host publicationSupplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
Pages1350-1355
Number of pages6
EditionPART 2
Publication statusPublished - Dec 1 2007
Event5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada
Duration: Jul 4 2006Jul 8 2006

Publication series

NameMaterials Science Forum
NumberPART 2
Volume539-543
ISSN (Print)0255-5476

Other

Other5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
CountryCanada
CityVancouver
Period7/4/067/8/06

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Ishihara, T., Shinagawa, M., Kawakami, A., & Matsumoto, H. (2007). Ni-Fe bimetallic anode for intermediate temperature solid oxide fuel cells using LaGaO3 based oxide electrolyte. In Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006 (PART 2 ed., pp. 1350-1355). (Materials Science Forum; Vol. 539-543, No. PART 2).