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000009300 084__ $$2WoS$$aElectrochemistry
000009300 084__ $$2WoS$$aEnergy & Fuels
000009300 1001_ $$0P:(DE-Juel1)129628$$aMa, Q.$$b0$$uFZJ
000009300 245__ $$aY-substituted SrTiO3-YSZ composites as anode materials for solid oxide fuel cells: Interaction between SYT and YSZ
000009300 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2010
000009300 300__ $$a1920 - 1925
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000009300 440_0 $$03727$$aJournal of Power Sources$$v195$$x0378-7753$$y7
000009300 500__ $$aThe authors thank Dr. W. Fischer (FZJ-IEF1) and Mr. M. Ziegner (FZJ-IEF 2) for XRD measurements, and the whole technical staff of FZJ-IEF1 for experimental assistance. Financial support from the European Commission under contract no. SES6-CT-2006-020089 of the Integrated Project "SOFC600" is gratefully acknowledged.
000009300 520__ $$aDonor-substituted SrTiO3 ceramic materials were investigated as the anodes of solid oxide fuel cells (SOFCs). Sr0.89Y0.07TiO3-delta (SYT) samples with good electrical conductivity and redox stability were prepared. The thermal and chemical expansions of SYT are both compatible with YSZ electrolyte. Half cells consisting of a flat anode substrate and an electrolyte layer with outer dimensions of 5 cm x 5 cm were fabricated, Ni particles were infiltrated on the pore walls within the ceramic anode framework, and the redox stability of the half cell was tested by He leakage tests after redox cycling. Ti diffusion but no Sr migration was found between the anode and electrolyte layers. Sr0.895Y0.07TiO3+/-delta (x = 1.00-1.20)-YSZ composites with a Volume ratio 2:1 were prepared to investigate the influences of this interdiffusion between YSZ and SYT materials. The results indicate that the conductivity of SYT decreases because of the Ti diffusion, and a small amount of Ti excess can solve this problem. (C) 2009 Elsevier B.V. All rights reserved.
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000009300 65320 $$2Author$$aCeramic
000009300 65320 $$2Author$$aDonor-doped strontium titanate
000009300 65320 $$2Author$$aSolid oxide fuel cells
000009300 65320 $$2Author$$aAnode material
000009300 65320 $$2Author$$aElectrical conductivity
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000009300 7001_ $$0P:(DE-Juel1)129667$$aTietz, F.$$b1$$uFZJ
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000009300 773__ $$0PERI:(DE-600)1491915-1$$a10.1016/j.jpowsour.2009.09.075$$gVol. 195, p. 1920 - 1925$$p1920 - 1925$$q195<1920 - 1925$$tJournal of power sources$$v195$$x0378-7753$$y2010
000009300 8567_ $$uhttp://dx.doi.org/10.1016/j.jpowsour.2009.09.075
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