Microstructural Analyses of Ceria-Based Anode with Highly Dispersed Ni Electrocatalysts for Medium-Temperature Solid Oxide Fuel Cells

• SUZUKI Shinsuke

  Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi

• UCHIDA Hiroyuki

  Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi

• WATANABE Masahiro

  Clean Energy Research Center, University of Yamanashi

Abstract

Mixed conducting samaria-doped ceria (SDC) anodes with a small amount of Ni nanoparticles (8 vol.%) exhibited a higher performance in SOFC operated at 700-900℃ than that of Ni-SDC cermet. Microstructural analyses of Ni-dispersed SDC showed that nanometer-sized Ni catalysts enhanced the anodic reaction rate by increasing the active reaction sites and lowering the electronic resistance in the anode effectively. The Ni-dispersed SDC anode exhibited a stable performance at 800℃ and 0.6 A cm^-2 in humidified H₂ for a long term over 1100 h.

Journal

• Electrochemistry

  Electrochemistry 73 (2), 128-134, 2005-02-05

  The Electrochemical Society of Japan

Keywords

• SOFC
• Medium-temperature
• Anode
• Ceria
• Nickel

Details

• CRID: 1390564238095501056
• NII Article ID: 10013810808
• NII Book ID: AN00151637
• DOI: 10.5796/electrochemistry.73.128
• ISSN: 21862451
• ISSN: 13443542
• NDL BIB ID: 7242113
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7242113
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/73/2/73_128/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Allowed