Surface modification of La0.6Sr0.4Co0.2Fe0.8O3-δ cathode by atomic layer deposition of La0.6Sr0.4CoO3-δ for high-performance solid oxide fuel cells

Hyung Jong Choi; Kiho Bae; Dong Young Jang; Suk Won Park; Gwon Deok Han; Joon Hyung Shim

doi:10.1149/06801.0729ecst

Surface modification of La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ cathode by atomic layer deposition of La_0.6Sr_0.4CoO_3-δ for high-performance solid oxide fuel cells

Hyung Jong Choi, Kiho Bae, Dong Young Jang, Suk Won Park, Gwon Deok Han, Joon Hyung Shim

School of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

Surface modification of La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ (LSCF) was conducted by atomic layer deposition (ALD) with La_0.6Sr_0.4CoO_3-δ (LSC). The anode supported cell with LSC modified LSCF cathode was used to analyze the effect of ALD LSC treatment. At the cell operating temperature (600°C) with the cell voltage of 550 mV, ALD treated cell has power density of 206.6 mW cm^-2 and showed increase in performance by 15.8 mW cm^-2 compared to bare cell. By analyzing the impedance results, it was found that both adsorption (or surface diffusion) and charge transfer kinetics were enhanced after ALD surface modification.

Original language	English
Title of host publication	Solid Oxide Fuel Cells 14, SOFC 2015
Editors	S. C. Singhal, K. Eguchi
Publisher	Electrochemical Society Inc.
Pages	729-733
Number of pages	5
Edition	1
ISBN (Electronic)	9781623322717
DOIs	https://doi.org/10.1149/06801.0729ecst
Publication status	Published - 2015
Event	14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom Duration: 2015 Jul 26 → 2015 Jul 31

Publication series

Name	ECS Transactions
Number	1
Volume	68
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Other

Other	14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
Country/Territory	United Kingdom
City	Glasgow
Period	15/7/26 → 15/7/31

Bibliographical note

Publisher Copyright:
© The Electrochemical Society.

ASJC Scopus subject areas

General Engineering

Access to Document

10.1149/06801.0729ecst

Cite this

Choi, H. J., Bae, K., Jang, D. Y., Park, S. W., Han, G. D., & Shim, J. H. (2015). Surface modification of La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ cathode by atomic layer deposition of La_0.6Sr_0.4CoO_3-δ for high-performance solid oxide fuel cells. In S. C. Singhal, & K. Eguchi (Eds.), Solid Oxide Fuel Cells 14, SOFC 2015 (1 ed., pp. 729-733). (ECS Transactions; Vol. 68, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/06801.0729ecst

Surface modification of La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ cathode by atomic layer deposition of La_0.6Sr_0.4CoO_3-δ for high-performance solid oxide fuel cells. / Choi, Hyung Jong; Bae, Kiho; Jang, Dong Young et al.
Solid Oxide Fuel Cells 14, SOFC 2015. ed. / S. C. Singhal; K. Eguchi. 1. ed. Electrochemical Society Inc., 2015. p. 729-733 (ECS Transactions; Vol. 68, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Choi, HJ, Bae, K, Jang, DY, Park, SW, Han, GD & Shim, JH 2015, Surface modification of La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ cathode by atomic layer deposition of La_0.6Sr_0.4CoO_3-δ for high-performance solid oxide fuel cells. in SC Singhal & K Eguchi (eds), Solid Oxide Fuel Cells 14, SOFC 2015. 1 edn, ECS Transactions, no. 1, vol. 68, Electrochemical Society Inc., pp. 729-733, 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage, Glasgow, United Kingdom, 15/7/26. https://doi.org/10.1149/06801.0729ecst

Choi HJ, Bae K, Jang DY, Park SW, Han GD, Shim JH. Surface modification of La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ cathode by atomic layer deposition of La_0.6Sr_0.4CoO_3-δ for high-performance solid oxide fuel cells. In Singhal SC, Eguchi K, editors, Solid Oxide Fuel Cells 14, SOFC 2015. 1 ed. Electrochemical Society Inc. 2015. p. 729-733. (ECS Transactions; 1). doi: 10.1149/06801.0729ecst

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abstract = "Surface modification of La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) was conducted by atomic layer deposition (ALD) with La0.6Sr0.4CoO3-δ (LSC). The anode supported cell with LSC modified LSCF cathode was used to analyze the effect of ALD LSC treatment. At the cell operating temperature (600°C) with the cell voltage of 550 mV, ALD treated cell has power density of 206.6 mW cm-2 and showed increase in performance by 15.8 mW cm-2 compared to bare cell. By analyzing the impedance results, it was found that both adsorption (or surface diffusion) and charge transfer kinetics were enhanced after ALD surface modification.",

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