Enhancing plasma-sprayed LSCF cathode performance by infiltration method

Ying Li; Cheng Xin Li; Shan Lin Zhang; Guan Jun Yang; Chang Jiu Li

Enhancing plasma-sprayed LSCF cathode performance by infiltration method

Ying Li
, Cheng Xin Li
, Shan Lin Zhang
, Guan Jun Yang
, Chang Jiu Li

School of Materials Science and Engineering

Xi'an Jiaotong University

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

Abstract

LSCF(La_0.6Sr_0.4Co_0.2Fe_0.8O₃) with a perovskite structure has been widely studied as cathode materials for intermediate solid oxide fuel cell(SOFC). It has well-known excellent electrode performance due to its high ionic and electronic conductivity. However, application of LSCF cathode is likely to be limited by the surface catalytic properties and long term stability. Sr and Co may segregate from LSCF under cathode polarization, leading to increased resistance of the cathode. Oxygen hyper- stoichiometric La₂NiO_4+δ with a K₂NiF₄ structure possesses a higher catalytic properties, ionic conductivity and stability compared to LSCF cathode. However, the electrical conductivity of the La₂NiO_4+δ (76 S cm^-1 at 800 °C ) in the IT range are lower than 100 S/cm, which is regarded as the minimum requirement in electrical conductivity for an SOFC cathode. Taking account of both the advantages and disadvantages of the two different cathode materials, and good chemical compatibility of those two cathode materials, it is possible to prepare a composite cathode by infiltrating a thin film of La₂NiO_4+δ on the porous LSCF to enhance the LSCF cathode performance. Therefore, in this study, the LSCF cathode was deposited by atmospheric plasma spray. The porous LSCF cathode was infiltrated by La₂NiO_4+δ. The microstructure was characterized by SEM and TEM. The effect of infiltration on the polarization of LSCF cathode was investigated.

Original language	English
Title of host publication	ASM International - International Thermal Spray Conference and Exposition, ITSC 2015
Editors	Arvind Agarwal, Yuk-Chiu Lau, Christian A. Widener, Erja Turunen, Giovanni Bolelli, Amadeu Concustell, Andre McDonald, Filofteia-Laura Toma
Publisher	ASM International
Pages	996-1000
Number of pages	5
ISBN (Electronic)	9781510811546
State	Published - 2015
Event	International Thermal Spray Conference and Exposition, ITSC 2015 - Long Beach, United States Duration: 11 May 2015 → 14 May 2015

Publication series

Name	Proceedings of the International Thermal Spray Conference
Volume	2

Conference

Conference	International Thermal Spray Conference and Exposition, ITSC 2015
Country/Territory	United States
City	Long Beach
Period	11/05/15 → 14/05/15

Keywords

Infiltration
LSCF
LaNiO
Plasma spray
Solid oxide fuel cells

Cite this

Li, Y., Li, C. X., Zhang, S. L., Yang, G. J., & Li, C. J. (2015). Enhancing plasma-sprayed LSCF cathode performance by infiltration method. In A. Agarwal, Y.-C. Lau, C. A. Widener, E. Turunen, G. Bolelli, A. Concustell, A. McDonald, & F.-L. Toma (Eds.), ASM International - International Thermal Spray Conference and Exposition, ITSC 2015 (pp. 996-1000). (Proceedings of the International Thermal Spray Conference; Vol. 2). ASM International.

Li, Ying ; Li, Cheng Xin ; Zhang, Shan Lin et al. / Enhancing plasma-sprayed LSCF cathode performance by infiltration method. ASM International - International Thermal Spray Conference and Exposition, ITSC 2015. editor / Arvind Agarwal ; Yuk-Chiu Lau ; Christian A. Widener ; Erja Turunen ; Giovanni Bolelli ; Amadeu Concustell ; Andre McDonald ; Filofteia-Laura Toma. ASM International, 2015. pp. 996-1000 (Proceedings of the International Thermal Spray Conference).

@inproceedings{8f1195b4eb6142f5ac9272c2df8dc1c1,

title = "Enhancing plasma-sprayed LSCF cathode performance by infiltration method",

abstract = "LSCF(La0.6Sr0.4Co0.2Fe0.8O3) with a perovskite structure has been widely studied as cathode materials for intermediate solid oxide fuel cell(SOFC). It has well-known excellent electrode performance due to its high ionic and electronic conductivity. However, application of LSCF cathode is likely to be limited by the surface catalytic properties and long term stability. Sr and Co may segregate from LSCF under cathode polarization, leading to increased resistance of the cathode. Oxygen hyper- stoichiometric La2NiO4+δ with a K2NiF4 structure possesses a higher catalytic properties, ionic conductivity and stability compared to LSCF cathode. However, the electrical conductivity of the La2NiO4+δ (76 S cm-1 at 800 °C ) in the IT range are lower than 100 S/cm, which is regarded as the minimum requirement in electrical conductivity for an SOFC cathode. Taking account of both the advantages and disadvantages of the two different cathode materials, and good chemical compatibility of those two cathode materials, it is possible to prepare a composite cathode by infiltrating a thin film of La2NiO4+δ on the porous LSCF to enhance the LSCF cathode performance. Therefore, in this study, the LSCF cathode was deposited by atmospheric plasma spray. The porous LSCF cathode was infiltrated by La2NiO4+δ. The microstructure was characterized by SEM and TEM. The effect of infiltration on the polarization of LSCF cathode was investigated.",

keywords = "Infiltration, LSCF, LaNiO, Plasma spray, Solid oxide fuel cells",

author = "Ying Li and Li, \{Cheng Xin\} and Zhang, \{Shan Lin\} and Yang, \{Guan Jun\} and Li, \{Chang Jiu\}",

note = "Publisher Copyright: {\textcopyright} (2015) by ASM International All rights reserved.; International Thermal Spray Conference and Exposition, ITSC 2015 ; Conference date: 11-05-2015 Through 14-05-2015",

year = "2015",

language = "英语",

series = "Proceedings of the International Thermal Spray Conference",

publisher = "ASM International",

pages = "996--1000",

editor = "Arvind Agarwal and Yuk-Chiu Lau and Widener, \{Christian A.\} and Erja Turunen and Giovanni Bolelli and Amadeu Concustell and Andre McDonald and Filofteia-Laura Toma",

booktitle = "ASM International - International Thermal Spray Conference and Exposition, ITSC 2015",

}

Li, Y, Li, CX, Zhang, SL, Yang, GJ & Li, CJ 2015, Enhancing plasma-sprayed LSCF cathode performance by infiltration method. in A Agarwal, Y-C Lau, CA Widener, E Turunen, G Bolelli, A Concustell, A McDonald & F-L Toma (eds), ASM International - International Thermal Spray Conference and Exposition, ITSC 2015. Proceedings of the International Thermal Spray Conference, vol. 2, ASM International, pp. 996-1000, International Thermal Spray Conference and Exposition, ITSC 2015, Long Beach, United States, 11/05/15.

Enhancing plasma-sprayed LSCF cathode performance by infiltration method. / Li, Ying; Li, Cheng Xin; Zhang, Shan Lin et al.
ASM International - International Thermal Spray Conference and Exposition, ITSC 2015. ed. / Arvind Agarwal; Yuk-Chiu Lau; Christian A. Widener; Erja Turunen; Giovanni Bolelli; Amadeu Concustell; Andre McDonald; Filofteia-Laura Toma. ASM International, 2015. p. 996-1000 (Proceedings of the International Thermal Spray Conference; Vol. 2).

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

TY - GEN

T1 - Enhancing plasma-sprayed LSCF cathode performance by infiltration method

AU - Li, Ying

AU - Li, Cheng Xin

AU - Zhang, Shan Lin

AU - Yang, Guan Jun

AU - Li, Chang Jiu

PY - 2015

Y1 - 2015

N2 - LSCF(La0.6Sr0.4Co0.2Fe0.8O3) with a perovskite structure has been widely studied as cathode materials for intermediate solid oxide fuel cell(SOFC). It has well-known excellent electrode performance due to its high ionic and electronic conductivity. However, application of LSCF cathode is likely to be limited by the surface catalytic properties and long term stability. Sr and Co may segregate from LSCF under cathode polarization, leading to increased resistance of the cathode. Oxygen hyper- stoichiometric La2NiO4+δ with a K2NiF4 structure possesses a higher catalytic properties, ionic conductivity and stability compared to LSCF cathode. However, the electrical conductivity of the La2NiO4+δ (76 S cm-1 at 800 °C ) in the IT range are lower than 100 S/cm, which is regarded as the minimum requirement in electrical conductivity for an SOFC cathode. Taking account of both the advantages and disadvantages of the two different cathode materials, and good chemical compatibility of those two cathode materials, it is possible to prepare a composite cathode by infiltrating a thin film of La2NiO4+δ on the porous LSCF to enhance the LSCF cathode performance. Therefore, in this study, the LSCF cathode was deposited by atmospheric plasma spray. The porous LSCF cathode was infiltrated by La2NiO4+δ. The microstructure was characterized by SEM and TEM. The effect of infiltration on the polarization of LSCF cathode was investigated.

AB - LSCF(La0.6Sr0.4Co0.2Fe0.8O3) with a perovskite structure has been widely studied as cathode materials for intermediate solid oxide fuel cell(SOFC). It has well-known excellent electrode performance due to its high ionic and electronic conductivity. However, application of LSCF cathode is likely to be limited by the surface catalytic properties and long term stability. Sr and Co may segregate from LSCF under cathode polarization, leading to increased resistance of the cathode. Oxygen hyper- stoichiometric La2NiO4+δ with a K2NiF4 structure possesses a higher catalytic properties, ionic conductivity and stability compared to LSCF cathode. However, the electrical conductivity of the La2NiO4+δ (76 S cm-1 at 800 °C ) in the IT range are lower than 100 S/cm, which is regarded as the minimum requirement in electrical conductivity for an SOFC cathode. Taking account of both the advantages and disadvantages of the two different cathode materials, and good chemical compatibility of those two cathode materials, it is possible to prepare a composite cathode by infiltrating a thin film of La2NiO4+δ on the porous LSCF to enhance the LSCF cathode performance. Therefore, in this study, the LSCF cathode was deposited by atmospheric plasma spray. The porous LSCF cathode was infiltrated by La2NiO4+δ. The microstructure was characterized by SEM and TEM. The effect of infiltration on the polarization of LSCF cathode was investigated.

KW - Infiltration

KW - LSCF

KW - LaNiO

KW - Plasma spray

KW - Solid oxide fuel cells

UR - https://www.scopus.com/pages/publications/84971254701

M3 - 会议稿件

AN - SCOPUS:84971254701

T3 - Proceedings of the International Thermal Spray Conference

SP - 996

EP - 1000

BT - ASM International - International Thermal Spray Conference and Exposition, ITSC 2015

A2 - Agarwal, Arvind

A2 - Lau, Yuk-Chiu

A2 - Widener, Christian A.

A2 - Turunen, Erja

A2 - Bolelli, Giovanni

A2 - Concustell, Amadeu

A2 - McDonald, Andre

A2 - Toma, Filofteia-Laura

PB - ASM International

T2 - International Thermal Spray Conference and Exposition, ITSC 2015

Y2 - 11 May 2015 through 14 May 2015

ER -

Li Y, Li CX, Zhang SL, Yang GJ , Li CJ. Enhancing plasma-sprayed LSCF cathode performance by infiltration method. In Agarwal A, Lau YC, Widener CA, Turunen E, Bolelli G, Concustell A, McDonald A, Toma FL, editors, ASM International - International Thermal Spray Conference and Exposition, ITSC 2015. ASM International. 2015. p. 996-1000. (Proceedings of the International Thermal Spray Conference).

Enhancing plasma-sprayed LSCF cathode performance by infiltration method

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Keywords

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