Investigation of scandia stabilized zirconia(ScSZ) - Yttria stabilized zirconia(YSZ) composite electrolyte for intermediate temperature fuel cells

Hui Jeong Son, Takhyoung Lim, Dongryul Shin, Rak Hyun Song, Sung Hyun Kim

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

Abstract

The effect of ScSZ - YSZ composite on stabilization and electrical conductivity has been investigated. Composite of (8YSZ)x(10ScSZ) (1-X)(x=0-1) were mixed by wet milling process and sintered at 1400°C for 5h and characterized by XRD, SEM, dilatometry and impedance spectroscopy, the long-term stability of the electrolyte materials was examined at 900°C for up to 1000h. The cubic phase shifts from an YSZ character to a ScSZ character with increase in percentage of ScSZ. The conductivity of composite with increasing ScSZ content is slightly higher than YSZ. Especially, above 50wt% ScSZ composition was exhibited higher electrical conductivity. All compositions showed conductivity degradation after annealing at 900°C for 1000h.

Original languageEnglish
Title of host publicationAdvances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
PublisherTrans Tech Publications Ltd
Pages795-798
Number of pages4
EditionPART 1
ISBN (Print)3908451310, 9783908451310
Publication statusPublished - 2007 Jan 1
EventIUMRS International Conference in Asia 2006, IUMRS-ICA 2006 - Jeju, Korea, Republic of
Duration: 2006 Sep 102006 Sep 14

Publication series

NameSolid State Phenomena
NumberPART 1
Volume124-126
ISSN (Print)1012-0394

Other

OtherIUMRS International Conference in Asia 2006, IUMRS-ICA 2006
CountryKorea, Republic of
CityJeju
Period06/9/1006/9/14

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Keywords

  • Electrolyte
  • ScSZ
  • Solid oxide fuel cell(SOFC)
  • YSZ

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Son, H. J., Lim, T., Shin, D., Song, R. H., & Kim, S. H. (2007). Investigation of scandia stabilized zirconia(ScSZ) - Yttria stabilized zirconia(YSZ) composite electrolyte for intermediate temperature fuel cells. In Advances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia (PART 1 ed., pp. 795-798). (Solid State Phenomena; Vol. 124-126, No. PART 1). Trans Tech Publications Ltd.