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Kim, Guntae
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Research Interests
  • Solid Oxide Fuel Cells (SOFCs)& SOE, PEMFC, metal-air batteries, Metal-CO2 system, Catalyst for DRM

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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
Issue Date
2012-10
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
https://scholarworks.unist.ac.kr/handle/201301/6436
URL
http://eel.ecsdl.org/content/1/5/F29
DOI
10.1149/2.007205eel
ISSN
2162-8726
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