One-dimensional structured La0.6Sr0.4Co0.2Fe0.8O3−δ - BaCe0.5Zr0.35Y0.15O3−δ composite cathode for protonic ceramic fuel cells

Sewook Lee; Sangho Park; Seokeun Wee; Hyeon woo Baek; Dongwook Shin

doi:10.1016/j.ssi.2018.03.010

One-dimensional structured La_0.6Sr_0.4Co_0.2Fe_0.8O_3−δ - BaCe_0.5Zr_0.35Y_0.15O_3−δ composite cathode for protonic ceramic fuel cells

Sewook Lee
, Sangho Park
, Seokeun Wee
, Hyeon woo Baek
, Dongwook Shin^*

^*Corresponding author for this work

Division of Chemical Engineering

Hanyang University

Research output: Contribution to journal › Journal article › peer-review

52 Scopus citations

Abstract

Advantages of ionic particle embedded fibrous cathodes have been reported in our previous studies. In this study, we apply this effective structure to protonic ceramic fuel cells. The BaCe_0.5Zr_0.35Y_0.15O_3−δ (BCZY) embedded La_0.6Sr_0.4Co_0.2Fe_0.8O_3−δ (LSCF) was prepared by electrospinning using an LSCF precursor gel containing the synthesized BCZY nanopowder, polyvinylpyrrolidone (PVP) and metal nitrate sources. The obtained LSCF-BCZY fibers with well-developed perovskite structures were 90–150 nm in diameter. An anode-supported single cell composed of NiO–BCZY/BCZY/LSCF-BCZY fibrous composite cathode was fabricated, and its electrochemical analysis was performed. The maximum power densities were 537 and 239 mW/cm² at 700 and 550 °C, respectively, which was ascribed to the excellent properties of the LSCF fibers with embedded BCZY particles such as a highly porous and continuous structure promoting mass transport and charge transfer reactions.

Original language	English
Pages (from-to)	347-352
Number of pages	6
Journal	Solid State Ionics
Volume	320
DOIs	https://doi.org/10.1016/j.ssi.2018.03.010
State	Published - 2018.07

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@article{8a8f3b6691414b4a8625018a8bf55010,

title = "One-dimensional structured La0.6Sr0.4Co0.2Fe0.8O3−δ - BaCe0.5Zr0.35Y0.15O3−δ composite cathode for protonic ceramic fuel cells",

abstract = "Advantages of ionic particle embedded fibrous cathodes have been reported in our previous studies. In this study, we apply this effective structure to protonic ceramic fuel cells. The BaCe0.5Zr0.35Y0.15O3−δ (BCZY) embedded La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) was prepared by electrospinning using an LSCF precursor gel containing the synthesized BCZY nanopowder, polyvinylpyrrolidone (PVP) and metal nitrate sources. The obtained LSCF-BCZY fibers with well-developed perovskite structures were 90–150 nm in diameter. An anode-supported single cell composed of NiO–BCZY/BCZY/LSCF-BCZY fibrous composite cathode was fabricated, and its electrochemical analysis was performed. The maximum power densities were 537 and 239 mW/cm2 at 700 and 550 °C, respectively, which was ascribed to the excellent properties of the LSCF fibers with embedded BCZY particles such as a highly porous and continuous structure promoting mass transport and charge transfer reactions.",

author = "Sewook Lee and Sangho Park and Seokeun Wee and Baek, \{Hyeon woo\} and Dongwook Shin",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jul,

doi = "10.1016/j.ssi.2018.03.010",

language = "English",

volume = "320",

pages = "347--352",

journal = "Solid State Ionics",

issn = "0167-2738",

}

TY - JOUR

T1 - One-dimensional structured La0.6Sr0.4Co0.2Fe0.8O3−δ - BaCe0.5Zr0.35Y0.15O3−δ composite cathode for protonic ceramic fuel cells

AU - Lee, Sewook

AU - Park, Sangho

AU - Wee, Seokeun

AU - Baek, Hyeon woo

AU - Shin, Dongwook

PY - 2018/7

Y1 - 2018/7

N2 - Advantages of ionic particle embedded fibrous cathodes have been reported in our previous studies. In this study, we apply this effective structure to protonic ceramic fuel cells. The BaCe0.5Zr0.35Y0.15O3−δ (BCZY) embedded La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) was prepared by electrospinning using an LSCF precursor gel containing the synthesized BCZY nanopowder, polyvinylpyrrolidone (PVP) and metal nitrate sources. The obtained LSCF-BCZY fibers with well-developed perovskite structures were 90–150 nm in diameter. An anode-supported single cell composed of NiO–BCZY/BCZY/LSCF-BCZY fibrous composite cathode was fabricated, and its electrochemical analysis was performed. The maximum power densities were 537 and 239 mW/cm2 at 700 and 550 °C, respectively, which was ascribed to the excellent properties of the LSCF fibers with embedded BCZY particles such as a highly porous and continuous structure promoting mass transport and charge transfer reactions.

AB - Advantages of ionic particle embedded fibrous cathodes have been reported in our previous studies. In this study, we apply this effective structure to protonic ceramic fuel cells. The BaCe0.5Zr0.35Y0.15O3−δ (BCZY) embedded La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) was prepared by electrospinning using an LSCF precursor gel containing the synthesized BCZY nanopowder, polyvinylpyrrolidone (PVP) and metal nitrate sources. The obtained LSCF-BCZY fibers with well-developed perovskite structures were 90–150 nm in diameter. An anode-supported single cell composed of NiO–BCZY/BCZY/LSCF-BCZY fibrous composite cathode was fabricated, and its electrochemical analysis was performed. The maximum power densities were 537 and 239 mW/cm2 at 700 and 550 °C, respectively, which was ascribed to the excellent properties of the LSCF fibers with embedded BCZY particles such as a highly porous and continuous structure promoting mass transport and charge transfer reactions.

UR - https://www.scopus.com/pages/publications/85044474990

U2 - 10.1016/j.ssi.2018.03.010

DO - 10.1016/j.ssi.2018.03.010

M3 - Journal article

AN - SCOPUS:85044474990

SN - 0167-2738

VL - 320

SP - 347

EP - 352

JO - Solid State Ionics

JF - Solid State Ionics

ER -

One-dimensional structured La_0.6Sr_0.4Co_0.2Fe_0.8O_3−δ - BaCe_0.5Zr_0.35Y_0.15O_3−δ composite cathode for protonic ceramic fuel cells

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