Influence of current load on the growth of SrZrO3 at the GDC/YSZ interface

Y. Inoue; J. T. Chou; T. Kawabata; J. Matsuda; S. Taniguchi; K. Sasaki

doi:10.1149/09101.0847ecst

Influence of current load on the growth of SrZrO₃ at the GDC/YSZ interface

Y. Inoue, J. T. Chou, T. Kawabata, J. Matsuda, S. Taniguchi, K. Sasaki

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

Abstract

The influence of current load on the growth of SrZrO₃ formed at the interface of a gadolinia-doped ceria (GDC) interlayer and yttria-stabilized zirconia (YSZ) electrolyte was analyzed using high-resolution electron microscopy. A cell with LNF (LaNi_0.6Fe_0.4O₃) cathode was prepared after removing the LSCF cathode using HCl. The LNF cathode was used to eliminate the effect of Sr diffusion during cell operation. These cells were operated under 0.2 A cm⁻² at 800°C. For the cell with the LNF cathode, no significant change was observed in the amount of SrZrO₃. At the SrZrO₃/GDC interface, crystal orientation was the same from the GDC side to the SrZrO₃ side. Before cell operation, the GDC grain had some defects and no clear boundary was distinguished between GDC and SrZrO₃. After cell operation, the SrZrO₃/GDC interface was clearer and crystallization of SrZrO₃ proceeded.

Original language	English
Title of host publication	Solid Oxide Fuel Cells 16, SOFC 2019
Editors	K. Eguchi, S. C. Singhal
Publisher	Electrochemical Society Inc.
Pages	847-852
Number of pages	6
Edition	1
ISBN (Electronic)	9781607688747, 9781607688747
DOIs	https://doi.org/10.1149/09101.0847ecst
Publication status	Published - 2019
Event	16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan Duration: Sept 8 2019 → Sept 13 2019

Publication series

Name	ECS Transactions
Number	1
Volume	91
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
Country/Territory	Japan
City	Kyoto
Period	9/8/19 → 9/13/19

All Science Journal Classification (ASJC) codes

Engineering(all)

Access to Document

10.1149/09101.0847ecst

Cite this

Influence of current load on the growth of SrZrO₃ at the GDC/YSZ interface. / Inoue, Y.; Chou, J. T.; Kawabata, T. et al.
Solid Oxide Fuel Cells 16, SOFC 2019. ed. / K. Eguchi; S. C. Singhal. 1. ed. Electrochemical Society Inc., 2019. p. 847-852 (ECS Transactions; Vol. 91, No. 1).

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

Inoue, Y, Chou, JT, Kawabata, T , Matsuda, J , Taniguchi, S & Sasaki, K 2019, Influence of current load on the growth of SrZrO₃ at the GDC/YSZ interface. in K Eguchi & SC Singhal (eds), Solid Oxide Fuel Cells 16, SOFC 2019. 1 edn, ECS Transactions, no. 1, vol. 91, Electrochemical Society Inc., pp. 847-852, 16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019, Kyoto, Japan, 9/8/19. https://doi.org/10.1149/09101.0847ecst

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abstract = "The influence of current load on the growth of SrZrO3 formed at the interface of a gadolinia-doped ceria (GDC) interlayer and yttria-stabilized zirconia (YSZ) electrolyte was analyzed using high-resolution electron microscopy. A cell with LNF (LaNi0.6Fe0.4O3) cathode was prepared after removing the LSCF cathode using HCl. The LNF cathode was used to eliminate the effect of Sr diffusion during cell operation. These cells were operated under 0.2 A cm−2 at 800°C. For the cell with the LNF cathode, no significant change was observed in the amount of SrZrO3. At the SrZrO3/GDC interface, crystal orientation was the same from the GDC side to the SrZrO3 side. Before cell operation, the GDC grain had some defects and no clear boundary was distinguished between GDC and SrZrO3. After cell operation, the SrZrO3/GDC interface was clearer and crystallization of SrZrO3 proceeded.",

author = "Y. Inoue and Chou, {J. T.} and T. Kawabata and J. Matsuda and S. Taniguchi and K. Sasaki",

note = "Funding Information: Financial support from the NEDO project “Technology development for SOFC commercialization promotion: Basic study on rapid evaluation method of SOFC durability” is gratefully acknowledged. We thank Prof. Dr. H. Yokokawa and the NEDO project team members for their helpful suggestions and comments. Publisher Copyright: {\textcopyright} The Electrochemical Society.; 16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 ; Conference date: 08-09-2019 Through 13-09-2019",

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N1 - Funding Information: Financial support from the NEDO project “Technology development for SOFC commercialization promotion: Basic study on rapid evaluation method of SOFC durability” is gratefully acknowledged. We thank Prof. Dr. H. Yokokawa and the NEDO project team members for their helpful suggestions and comments. Publisher Copyright: © The Electrochemical Society.

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N2 - The influence of current load on the growth of SrZrO3 formed at the interface of a gadolinia-doped ceria (GDC) interlayer and yttria-stabilized zirconia (YSZ) electrolyte was analyzed using high-resolution electron microscopy. A cell with LNF (LaNi0.6Fe0.4O3) cathode was prepared after removing the LSCF cathode using HCl. The LNF cathode was used to eliminate the effect of Sr diffusion during cell operation. These cells were operated under 0.2 A cm−2 at 800°C. For the cell with the LNF cathode, no significant change was observed in the amount of SrZrO3. At the SrZrO3/GDC interface, crystal orientation was the same from the GDC side to the SrZrO3 side. Before cell operation, the GDC grain had some defects and no clear boundary was distinguished between GDC and SrZrO3. After cell operation, the SrZrO3/GDC interface was clearer and crystallization of SrZrO3 proceeded.

AB - The influence of current load on the growth of SrZrO3 formed at the interface of a gadolinia-doped ceria (GDC) interlayer and yttria-stabilized zirconia (YSZ) electrolyte was analyzed using high-resolution electron microscopy. A cell with LNF (LaNi0.6Fe0.4O3) cathode was prepared after removing the LSCF cathode using HCl. The LNF cathode was used to eliminate the effect of Sr diffusion during cell operation. These cells were operated under 0.2 A cm−2 at 800°C. For the cell with the LNF cathode, no significant change was observed in the amount of SrZrO3. At the SrZrO3/GDC interface, crystal orientation was the same from the GDC side to the SrZrO3 side. Before cell operation, the GDC grain had some defects and no clear boundary was distinguished between GDC and SrZrO3. After cell operation, the SrZrO3/GDC interface was clearer and crystallization of SrZrO3 proceeded.

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