BROWSE

Related Researcher

Author

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

ITEM VIEW & DOWNLOAD

Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa0.5Sr0.5Co2-xFexO5+delta

Cited 16 times inthomson ciCited 7 times inthomson ci
Title
Highly efficient and robust cathode materials for low-temperature solid oxide fuel cells: PrBa0.5Sr0.5Co2-xFexO5+delta
Author
Choi, SihyukYoo, SeonyoungKim, JiyounPark, SeonhyeJun, AreumSengodan, SivaprakashKim, JunyoungShin, JeeyoungJeong, Hu YoungChoi, Yong ManKim, GuntaeLiu, Meilin
Keywords
Electrochemistry; Electronic Devices; Fuel Cells; Materials Science; Subject Areas
Issue Date
201308
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v.3, no., pp.1 - 6
Abstract
Solid oxide fuel cells (SOFC) are the cleanest, most efficient, and cost-effective option for direct conversion to electricity of a wide variety of fuels. While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization still contributes considerably to energy loss, more so at lower operating temperatures. Here we report a synergistic effect of co-doping in a cation-ordered double-perovskite material, PrBa 0.5 Sr 0.5 Co 2-x Fe x O 5+δ, which has created pore channels that dramatically enhance oxygen ion diffusion and surface oxygen exchange while maintaining excellent compatibility and stability under operating conditions. Test cells based on these cathode materials demonstrate peak power densities ∼2.2â�...W cm -2 at 600 C, representing an important step toward commercially viable SOFC technologies.
URI
Go to Link
DOI
http://dx.doi.org/10.1038/srep02426
ISSN
2045-2322
Appears in Collections:
UCRF_Journal Papers
ECHE_Journal Papers
Files in This Item:
84882769806.pdfDownload

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU