BROWSE

Related Researcher

Author's Photo

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

ITEM VIEW & DOWNLOAD

Layered oxygen-deficient double perovskite as an efficient and stable anode for direct hydrocarbon solid oxide fuel cells

Cited 18 times inthomson ciCited 0 times inthomson ci
Title
Layered oxygen-deficient double perovskite as an efficient and stable anode for direct hydrocarbon solid oxide fuel cells
Author
Sengoda, SivaprakashChoi, SihyukJun, AreumShin, Tae HoJu, Young-WanJeong, Hu YoungKim, JeeyoungIrvine, John T. S.Kim, Guntae
Issue Date
2015-02
Publisher
NATURE PUBLISHING GROUP
Citation
NATURE MATERIALS, v.14, no.2, pp.205 - 209
Abstract
Different layered perovskite-related oxides are known to exhibit important electronic, magnetic and electrochemical properties. Owing to their excellent mixed-ionic and electronic conductivity and fast oxygen kinetics, cation layered double perovskite oxides such as PrBaCo2O5 in particular have exhibited excellent properties as solid oxide fuel cell oxygen electrodes. Here, we show for the first time that related layered materials can be used as high-performance fuel electrodes. Good redox stability with tolerance to coking and sulphur contamination from hydrocarbon fuels is demonstrated for the layered perovskite anode PrBaMn2O5+δ (PBMO). The PBMO anode is fabricated by in situ annealing of Pr0.5Ba0.5MnO3-δ in fuel conditions and actual fuel cell operation is demonstrated. At 800 °C, layered PBMO shows high electrical conductivity of 8.16 S cm-1 in 5% H2 and demonstrates peak power densities of 1.7 and 1.3 W cm-2 at 850 °C using humidified hydrogen and propane fuels, respectively.
URI
https://scholarworks.unist.ac.kr/handle/201301/9804
URL
http://www.nature.com/nmat/journal/v14/n2/full/nmat4166.html
DOI
10.1038/nmat4166
ISSN
1476-1122
Appears in Collections:
ECHE_Journal Papers
SE_Journal Papers
Files in This Item:
There are no files associated with this item.

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

Show full item record

qrcode

  • mendeley

    citeulike

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

MENU