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

Electrochemical investigation of strontium doping effect on high performance Pr1-xSrxCoO3-delta (x=0.1, 0.3, 0.5, and 0.7) cathode for intermediate-temperature solid oxide fuel cells

DC Field Value Language
dc.contributor.author Park, Seonhye ko
dc.contributor.author Choi, Sihyuk ko
dc.contributor.author Shin, Jeeyoung ko
dc.contributor.author Kim, Guntae ko
dc.date.available 2014-04-10T01:43:31Z -
dc.date.created 2013-06-17 ko
dc.date.issued 2012-07 -
dc.identifier.citation JOURNAL OF POWER SOURCES, v.210, no., pp.172 - 177 ko
dc.identifier.issn 0378-7753 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/3315 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84859486362 ko
dc.description.abstract The Pr1-xSrCoO3-delta perovskite-type oxides have received extensive attention as a promising cathode material due to their favorable properties for realizing high performance intermediate temperature solid oxide fuel cells (IT-SOFCs). This study focuses on the electrical properties, electrochemical performance, and redox behavior of a perovskite oxide of Pr1-xSrxCoO3-delta (x = 0.1, 0.3, 0.5, and 0.7). For x= 0.1 and 0.3, the electrical conductivities increase with increasing strontium content. In the case of x > 0.3, however, decreased electrical conductivity is observed with increasing x. The oxygen non-stoichiometry of Pr1-xSrxCoO3-delta using coulometric titration and its electrical conductivity in a wide range of oxygen partial pressure at 973 K are also investigated. A Ni-GDC anode-supported cell is fabricated to evaluate the electrochemical performance of the Pr1-xSrxCoO3-delta cathode material. The maximum power density at 973 K is 1.19 W cm(-2) for x= 0.3, and the other samples also show high power density over 1.0 W cm-2, except for at x= 0.7. Given its high electrical conductivity and cell performance, Pr0.7Sr0.3CoO3-delta is a favorable cathode material candidate for IT-SOFC applications. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.subject Anode supported cell ko
dc.subject Cathode materials ko
dc.subject Cell performance ko
dc.subject Coulometric titration ko
dc.subject Doping effects ko
dc.subject Electrical conductivity ko
dc.subject Electrochemical investigations ko
dc.subject Electrochemical performance ko
dc.subject High electrical conductivity ko
dc.subject High power density ko
dc.subject Intermediate temperature solid oxide fuel cell ko
dc.subject IT-SOFCs ko
dc.subject Maximum power density ko
dc.subject Oxygen non-stoichiometry ko
dc.subject Oxygen partial pressure ko
dc.subject Perovskite oxides ko
dc.subject Perovskite type oxides ko
dc.subject Redox behavior ko
dc.title Electrochemical investigation of strontium doping effect on high performance Pr1-xSrxCoO3-delta (x=0.1, 0.3, 0.5, and 0.7) cathode for intermediate-temperature solid oxide fuel cells ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84859486362 ko
dc.identifier.wosid 000305108400027 ko
dc.type.rims ART ko
dc.description.scopustc 11 *
dc.date.scptcdate 2014-07-12 *
dc.identifier.doi 10.1016/j.jpowsour.2012.03.018 ko
Appears in Collections:
ECHE_Journal Papers

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

Show simple item record

qrcode

  • mendeley

    citeulike

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

MENU