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

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

doi:10.1016/j.jpowsour.2009.06.079

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

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

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

Core-shell type La_0.6Sr_0.4Co_0.2Fe_0.8O_3-d (LSCF)-Sm_0.2Ce_0.8O_2-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 language	English
Pages (from-to)	118-123
Number of pages	6
Journal	Journal of Power Sources
Volume	195
Issue number	1
DOIs	https://doi.org/10.1016/j.jpowsour.2009.06.079
Publication status	Published - 2010 Jan 1

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2009.06.079

Cite this

@article{2fe6582e61064f87bdd28005f7aafd7d,

title = "LSCF-SDC core-shell high-performance durable composite cathode",

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.",

author = "Seungho Lee and Song, {Hwa Seob} and Hyun, {Sang Hoon} and Joosun Kim and Jooho Moon",

year = "2010",

month = jan,

day = "1",

doi = "10.1016/j.jpowsour.2009.06.079",

language = "English",

volume = "195",

pages = "118--123",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - LSCF-SDC core-shell high-performance durable composite cathode

AU - Lee, Seungho

AU - Song, Hwa Seob

AU - Hyun, Sang Hoon

AU - Kim, Joosun

AU - Moon, Jooho

PY - 2010/1/1

Y1 - 2010/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=69349093523&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=69349093523&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2009.06.079

DO - 10.1016/j.jpowsour.2009.06.079

M3 - Article

AN - SCOPUS:69349093523

VL - 195

SP - 118

EP - 123

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

IS - 1

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this