Nonstoichiometric Y-substituted SrTiO3 materials as anodes for solid oxide fuel cells

Ma, Q.; Stöver, D.; Tietz, F.

doi:10.1016/j.ssi.2010.03.027

Journal Article

PreJuSER-18151

Nonstoichiometric Y-substituted SrTiO3 materials as anodes for solid oxide fuel cells

Ma, Q.FZJ* ; Tietz, F.FZJ* ; Stöver, D.FZJ*

2011
Elsevier Science Amsterdam [u.a.]

Solid state ionics 192, 535 - 539 (2011) [10.1016/j.ssi.2010.03.027]

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Please use a persistent id in citations: doi:10.1016/j.ssi.2010.03.027

Abstract: Nonstoichiometric yittrium-substituted SrTiO3 samples with a nominal composition of SrxY0.07TiO3 +/-delta (x = 0.87-1.01) and Sr0.895Y0.07TixO3-delta (x = 1.00-1.20) were prepared and investigated. Phase impurities were found in samples with too high A-site or B-site deficiency. The electrical properties of the samples sintered in reducting atmosphere at different temperatures were analyzed with a view to their potential use as anode materials for solid oxide fuel cells (SOFCs). The redox properties of selected samples were investigated in detail. Samples with small A-site deficiency were considered to be the best candidates for SOFC anode materials. (C) 2010 Elsevier B.V. All rights reserved.

Keyword(s): J ; Ceramic (auto) ; Y-substituted strontium titanate (auto) ; Perovskite (auto) ; Solid oxide fuel cells (auto) ; Anode material (auto) ; Electrical conductivity (auto)