Gd{sub 1{minus}x}A{sub x}MnO{sub 3} (A = Ca and Sr) for the electrode of solid oxide fuel cells

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1837899· OSTI ID:536475

Takeda, Y; Tu, H Y; Sakaki, H; Watanabe, S; Imanishi, N; Yamamoto, O ^[1]; Phillipps, M B; Sammes, N M ^[2]

---

1. Mie Univ., Tsu (Japan). Dept. of Chemistry
2. Univ. of Waikato, Hamilton (New Zealand). Center for Technology

From the viewpoint of the electrode for solid oxide fuel cells, Gd{sub 1{minus}x}A{sub x}MnO{sub 3} (A = Ca and Sr) was studied for its electrical conductivity, cathodic polarization, and reactivity with yttria-stabilized zirconia [8 mole percent (m/o)] Y{sub 2}O{sub 3} doped zirconia. Although cathodic activity and electrical conductivity are similar to the La{sub 1{minus}x}A{sub x}MnO{sub 3} system, stability with yttria-stabilized zirconia electrolyte is far superior. Gd{sub 1{minus}x}A{sub x}MnO{sub 3} (x {le} 0.5), for example, yields no reaction product with yttria-stabilized zirconia at high temperature, which is very attractive for practical applications in a solid oxide fuel cell.

• Sponsoring Organization: USDOE
• OSTI ID: 536475
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 8 Vol. 144; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
CALCIUM OXIDES
CATHODES
ELECTRIC CONDUCTIVITY
GADOLINIUM OXIDES
MANGANESE OXIDES
SOLID ELECTROLYTE FUEL CELLS
STRONTIUM OXIDES