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Author

Kim, Guntae
GUNS Lab
Research Interests
  • Solid Oxide Fuel Cells (SOFCs)& SOE, metal-air batteries, ceramic membranes, PEMFC

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Strontium Doping Effect on High-Performance PrBa1-xSrxCo2O5+delta as a Cathode Material for IT-SOFCs

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Title
Strontium Doping Effect on High-Performance PrBa1-xSrxCo2O5+delta as a Cathode Material for IT-SOFCs
Author
Park, SeonhyeChoi, SihyukKim, JunyoungShin, JeeyoungKim, Guntae
Keywords
Anode supported cell; Area-specific resistances; Cath-ode materials; Coordination number; Electrical conductivity; Electrochemical performance; Maximum power density; Structural characteristics
Issue Date
2012
Publisher
The Electrochemical Society
Citation
ECS ELECTROCHEMISTRY LETTERS, v.1, no.5, pp.F29 - F32
Abstract
The strontium effect in PrBa1-xSrxCo2O5+? (x = 0, 0.25, 0.5, 0.75, and 1.0) oxides was investigated based on their structural characteristics, electrical properties, and electrochemical performance. Electrical conductivities increase with increasing strontium content due to the higher oxygen content and coordination number. The area specific resistance (ASR) of PrBa1-xSrxCo2O5+? were measured on Ce0.9Gd0.1O1.95 (GDC) and the minimum ASR values were observed at x = 0.5 and 0.75. Electrochemical performance of PrBa1-xSrxCo2O5+? cathodes was measured using Ni-GDC anode-supported cell. The maximum power density was 1.08Wcm-2 at 600C for x = 0.5 and 0.75.
URI
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DOI
http://dx.doi.org/10.1149/2.007205eel
ISSN
2162-8726
Appears in Collections:
ECHE_Journal Papers

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