LSCF-SDC core-shell high-performance durable composite cathode

Seungho Lee, Hwa Seob Song, Sang Hoon Hyun, Joosun Kim, Jooho Moon

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Core-shell type La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF)-Sm0.2Ce0.8O2-d (SDC) powders are synthesized to achieve a high-performance durable cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs). The SDC core size is controlled so that all core particles are surrounded by the LSCF particles with no unattached spots. Such a core-shell composite cathode develops an ideal microstructure with improved phase contiguity, homogeneity, and maximized triple-phase boundary density. The cathode that involves an SDC core of 500 nm exhibits the lowest interfacial polarization resistance (0.265 Ω cm2 at 650 °C), as well as long-term stability during both thermo-cyclic and electrochemically accelerated tests.

Original languageEnglish
Pages (from-to)118-123
Number of pages6
JournalJournal of Power Sources
Volume195
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1

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Cathodes
cathodes
composite materials
Composite materials
Phase boundaries
Solid oxide fuel cells (SOFC)
Powders
Polarization
solid oxide fuel cells
Microstructure
homogeneity
microstructure
polarization
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Lee, Seungho ; Song, Hwa Seob ; Hyun, Sang Hoon ; Kim, Joosun ; Moon, Jooho. / LSCF-SDC core-shell high-performance durable composite cathode. In: Journal of Power Sources. 2010 ; Vol. 195, No. 1. pp. 118-123.
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LSCF-SDC core-shell high-performance durable composite cathode. / Lee, Seungho; Song, Hwa Seob; Hyun, Sang Hoon; Kim, Joosun; Moon, Jooho.

In: Journal of Power Sources, Vol. 195, No. 1, 01.01.2010, p. 118-123.

Research output: Contribution to journalArticle

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