Formation of La2Zr2O7 or SrZrO3 on cathode-supported solid oxide fuel cells

Koho Yang, Jung Hsiung Shen, Kai Yun Yang, I. Ming Hung, Kuan Zong Fung, Moo Chin Wang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Formation of La2Zr2O7 and SrZrO3 on cathode-supported solid oxide fuel cells has been characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). Thin yttria-stabilized zirconia (YSZ) film with a thickness of about 15 μm was fabricated on the porous La0.8Sr0.2MnO3 (LS0.2M) and La0.65Sr0.35MnO3 (LS0.35M) cathodes by electrophoretic deposition (EPD) followed with sintering at 1400 °C for various times. The La2Zr2O7 (LZ) and SrZrO3 (SZ) formed at the interface between YSZ thin film and LS0.2M and LS0.35M substrate, respectively, after sintering at 1400 °C for 52 h, were identified by XRD. LZ was also determined by TEM and SAED for the samples sintered at 1400 °C for 2 h. The grain size of LZ suddenly increased from 100 nm to a micrometer scale when the sintered time increased from 2 to 12 h.

Original languageEnglish
Pages (from-to)63-67
Number of pages5
JournalJournal of Power Sources
Volume159
Issue number1 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Sep 13

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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