Electrochemical properties and durability of in-situ composite cathodes with SmBa0.5Sr0.5Co2O5+δ for metal supported solid oxide fuel cells

John T. S. Irvine; Joongmyeon Bae; Jun-Young Park; Won Seok Choi; Jung Hyun Kim

doi:10.1016/j.ijhydene.2016.10.158

Electrochemical properties and durability of in-situ composite cathodes with SmBa_0.5Sr_0.5Co₂O_5+δ for metal supported solid oxide fuel cells

John T. S. Irvine, Joongmyeon Bae, Jun-Young Park, Won Seok Choi, Jung Hyun Kim

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

Abstract

The electrochemical properties and long-term performance of an in-situ composite cathode comprised of SmBa_0.5Sr_0.5Co₂O_5+δ (SBSCO) and Ce_0.9Gd_0.1O_2−δ (CGO91) are investigated for metal supported solid oxide fuel cell (MS-SOFC) application.
The Area Specific Resistance (ASR) of an in-situ composite cathode comprised of 50 wt% of SBSCO and 50 wt% of CGO91 (SBSCO:50) is 0.031 Ω cm² in the first stage of measurement at 700 °C; this value of ASR increases to 0.138 Ω cm² after 1000 h. The ASR of SBSCO:50 (in-situ sample at 750 °C) is 0.014 Ω cm² at the initial stage of measurement; the increase of ASR after 1000 h at 750 °C is only 0.067 Ω cm². These results suggest that the optimum temperature for in-situ firing of an SBSCO:50 cathode sample of MS-SOFC is higher than 700 °C, ideally around 750 °C.

Original language	English
Pages (from-to)	1212-1220
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	42
Issue number	2
Early online date	17 Nov 2016
DOIs	https://doi.org/10.1016/j.ijhydene.2016.10.158
Publication status	Published - 12 Jan 2017

Keywords

Metal supported solid oxide fuel cell
Sr doped layered perovskite
Area specific resistance
In-situ cathode
Sintering effect

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10.1016/j.ijhydene.2016.10.158

Irvine_2016_IJHE_Electrochemical_AAM
© 2016 Hydrogen Energy Publications LLC. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1016/j.ijhydene.2016.10.158
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@article{9d0df34ce06842fa9b5f7b78a9bae4d9,

title = "Electrochemical properties and durability of in-situ composite cathodes with SmBa0.5Sr0.5Co2O5+δ for metal supported solid oxide fuel cells",

abstract = "The electrochemical properties and long-term performance of an in-situ composite cathode comprised of SmBa0.5Sr0.5Co2O5+δ (SBSCO) and Ce0.9Gd0.1O2−δ (CGO91) are investigated for metal supported solid oxide fuel cell (MS-SOFC) application. The Area Specific Resistance (ASR) of an in-situ composite cathode comprised of 50 wt\% of SBSCO and 50 wt\% of CGO91 (SBSCO:50) is 0.031 Ω cm2 in the first stage of measurement at 700 °C; this value of ASR increases to 0.138 Ω cm2 after 1000 h. The ASR of SBSCO:50 (in-situ sample at 750 °C) is 0.014 Ω cm2 at the initial stage of measurement; the increase of ASR after 1000 h at 750 °C is only 0.067 Ω cm2. These results suggest that the optimum temperature for in-situ firing of an SBSCO:50 cathode sample of MS-SOFC is higher than 700 °C, ideally around 750 °C.",

keywords = "Metal supported solid oxide fuel cell, Sr doped layered perovskite, Area specific resistance, In-situ cathode, Sintering effect",

author = "Irvine, \{John T. S.\} and Joongmyeon Bae and Jun-Young Park and Choi, \{Won Seok\} and Kim, \{Jung Hyun\}",

note = "The authors are grateful for the support of the Basic Science Research Program, part of the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT and Future Planning (No. 2014R1A1A1004163).",

year = "2017",

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doi = "10.1016/j.ijhydene.2016.10.158",

language = "English",

volume = "42",

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T1 - Electrochemical properties and durability of in-situ composite cathodes with SmBa0.5Sr0.5Co2O5+δ for metal supported solid oxide fuel cells

AU - Irvine, John T. S.

AU - Bae, Joongmyeon

AU - Park, Jun-Young

AU - Choi, Won Seok

AU - Kim, Jung Hyun

N1 - The authors are grateful for the support of the Basic Science Research Program, part of the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT and Future Planning (No. 2014R1A1A1004163).

PY - 2017/1/12

Y1 - 2017/1/12

N2 - The electrochemical properties and long-term performance of an in-situ composite cathode comprised of SmBa0.5Sr0.5Co2O5+δ (SBSCO) and Ce0.9Gd0.1O2−δ (CGO91) are investigated for metal supported solid oxide fuel cell (MS-SOFC) application. The Area Specific Resistance (ASR) of an in-situ composite cathode comprised of 50 wt% of SBSCO and 50 wt% of CGO91 (SBSCO:50) is 0.031 Ω cm2 in the first stage of measurement at 700 °C; this value of ASR increases to 0.138 Ω cm2 after 1000 h. The ASR of SBSCO:50 (in-situ sample at 750 °C) is 0.014 Ω cm2 at the initial stage of measurement; the increase of ASR after 1000 h at 750 °C is only 0.067 Ω cm2. These results suggest that the optimum temperature for in-situ firing of an SBSCO:50 cathode sample of MS-SOFC is higher than 700 °C, ideally around 750 °C.

AB - The electrochemical properties and long-term performance of an in-situ composite cathode comprised of SmBa0.5Sr0.5Co2O5+δ (SBSCO) and Ce0.9Gd0.1O2−δ (CGO91) are investigated for metal supported solid oxide fuel cell (MS-SOFC) application. The Area Specific Resistance (ASR) of an in-situ composite cathode comprised of 50 wt% of SBSCO and 50 wt% of CGO91 (SBSCO:50) is 0.031 Ω cm2 in the first stage of measurement at 700 °C; this value of ASR increases to 0.138 Ω cm2 after 1000 h. The ASR of SBSCO:50 (in-situ sample at 750 °C) is 0.014 Ω cm2 at the initial stage of measurement; the increase of ASR after 1000 h at 750 °C is only 0.067 Ω cm2. These results suggest that the optimum temperature for in-situ firing of an SBSCO:50 cathode sample of MS-SOFC is higher than 700 °C, ideally around 750 °C.

KW - Metal supported solid oxide fuel cell

KW - Sr doped layered perovskite

KW - Area specific resistance

KW - In-situ cathode

KW - Sintering effect

UR - https://www.scopus.com/pages/publications/85006757620

U2 - 10.1016/j.ijhydene.2016.10.158

DO - 10.1016/j.ijhydene.2016.10.158

M3 - Article

SN - 0360-3199

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