Performance investigation of dual layer yttria-stabilized zirconia-samaria-doped ceria electrolyte for intermediate temperature solid oxide fuel cells

Ryan J. Milcarek, Kang Wang, Michael J. Garrett, Jeongmin Ahn

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The performance of yttria-stabilized zirconia (YSZ)-samaria-doped ceria (SDC) dual layer electrolyte anode-supported solid oxide fuel cell (AS-SOFC) was investigated. Tape-casting, lamination, and co-sintering of the NiO-YSZ anode followed by wet powder spraying of the SDC buffer layer and BSCF cathode was proposed for fabrication of these cells as an effective means of reducing the number of sintering stages required. The AS-SOFC showed a significant fuel cell performance of ∼1.9 W cm-2 at 800 °C. The fuel cell performance varies significantly with the sintering temperature of the SDC buffer layer. An optimal buffer layer sintering temperature of 1350 °C occurs due to a balance between the YSZ-SDC contact and densification at low sintering temperature and reactions between YSZ and SDC at high sintering temperatures. At high sintering temperatures, the reactions between YSZ and SDC have a detrimental effect on the fuel cell performance resulting in no power at a sintering temperature of 1500 °C.

Original languageEnglish (US)
Article number011002
JournalJournal of Electrochemical Energy Conversion and Storage
Volume13
Issue number1
DOIs
StatePublished - Jan 1 2016
Externally publishedYes

Fingerprint

Yttria stabilized zirconia
Cerium compounds
Solid oxide fuel cells (SOFC)
Electrolytes
Sintering
Buffer layers
Fuel cells
Temperature
Anodes
Spraying
Densification
Powders
Tapes
Casting
Cathodes
Fabrication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "The performance of yttria-stabilized zirconia (YSZ)-samaria-doped ceria (SDC) dual layer electrolyte anode-supported solid oxide fuel cell (AS-SOFC) was investigated. Tape-casting, lamination, and co-sintering of the NiO-YSZ anode followed by wet powder spraying of the SDC buffer layer and BSCF cathode was proposed for fabrication of these cells as an effective means of reducing the number of sintering stages required. The AS-SOFC showed a significant fuel cell performance of ∼1.9 W cm-2 at 800 °C. The fuel cell performance varies significantly with the sintering temperature of the SDC buffer layer. An optimal buffer layer sintering temperature of 1350 °C occurs due to a balance between the YSZ-SDC contact and densification at low sintering temperature and reactions between YSZ and SDC at high sintering temperatures. At high sintering temperatures, the reactions between YSZ and SDC have a detrimental effect on the fuel cell performance resulting in no power at a sintering temperature of 1500 °C.",
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