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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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Triple-Conducting Layered Perovskites as Cathode Materials for Proton-Conducting Solid Oxide Fuel Cells

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Title
Triple-Conducting Layered Perovskites as Cathode Materials for Proton-Conducting Solid Oxide Fuel Cells
Author
Kim, JunyoungSengodan, SivaprakashKwon, GoeunDing, DongShin, JeeyoungLiu, MeilinKim, Guntae
Issue Date
2014-10
Publisher
WILEY-V C H VERLAG GMBH
Citation
CHEMSUSCHEM, v.7, no.10, pp.2811 - 2815
Abstract
We report on an excellent anode-supported H+-SOFC material system using a triple conducting (H+/O2-/e-) oxide (TCO) as a cathode material for H+-SOFCs. Generally, mixed ionic (O2-) and electronic conductors (MIECs) have been selected as the cathode material of H+-SOFCs. In an H+-SOFC system, however, MIEC cathodes, however, limit the electrochemically active sites to the interface between the proton conducting electrolyte and the cathode. New approaches to the tailoring of cathode materials for H+-SOFCs should therefore be considered. TCOs can effectively extend the electrochemically active sites from the interface between the cathode and the electrolyte to the entire surface of the cathode. The electrochemical performance of NBSCF/BZCYYb/BZCYYb-NiO shows excellent long term stability for 500h at 1023K with high power density of 1.61Wcm-2.
URI
https://scholarworks.unist.ac.kr/handle/201301/5640
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906162498
DOI
10.1002/cssc.201402351
ISSN
1864-5631
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