Studies of oxygen exchange on thin-film La0.6Sr 0.4CoO3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS)

Jamie R. Wilson; Maya Sase; Tatsuya Kawada; Stuart B. Adler

doi:10.1149/1.2729206

Studies of oxygen exchange on thin-film La_0.6Sr _0.4CoO_3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS)

Jamie R. Wilson, Maya Sase, Tatsuya Kawada, Stuart B. Adler

ENV - Environmental Studies for Advanced Society

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

Abstract

In order to probe the mechanism of O₂ reduction on mixed-conducting oxides, we have measured the nonlinear harmonic impedance response of a dense thin film electrode of La_0.6Sr _0.4CoO_3-δ (LSC-64). This approach reveals the nonlinear rate law governing O₂ reduction/oxidation. Comparison to various models based on nonequilibrium thermodynamics suggests that O ₂ reduction on LSC-64 is limited by dissociative adsorption. These results are discussed in the context of known equilibrium exchange kinetics and electronic structure. Implications for porous electrode kinetics are also discussed.

Original language	English
Title of host publication	ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Pages	1089-1096
Number of pages	8
Edition	1 PART 1
DOIs	https://doi.org/10.1149/1.2729206
Publication status	Published - 2007 Dec 1
Event	10th International Symposium on Solid Oxide Fuel Cells, SOFC-X - , Japan Duration: 2007 Jun 3 → 2007 Jun 8

Publication series

Name	ECS Transactions
Number	1 PART 1
Volume	7
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Country	Japan
Period	07/6/3 → 07/6/8

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1149/1.2729206

Fingerprint Dive into the research topics of 'Studies of oxygen exchange on thin-film La0.6Sr 0.4CoO3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS)'. Together they form a unique fingerprint.

Cite this

Wilson, J. R., Sase, M., Kawada, T., & Adler, S. B. (2007). Studies of oxygen exchange on thin-film La_0.6Sr _0.4CoO_3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS). In ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X (1 PART 1 ed., pp. 1089-1096). (ECS Transactions; Vol. 7, No. 1 PART 1). https://doi.org/10.1149/1.2729206

Studies of oxygen exchange on thin-film La_0.6Sr _0.4CoO_3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS). / Wilson, Jamie R.; Sase, Maya; Kawada, Tatsuya; Adler, Stuart B.

ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X. 1 PART 1. ed. 2007. p. 1089-1096 (ECS Transactions; Vol. 7, No. 1 PART 1).

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

Wilson, JR, Sase, M, Kawada, T & Adler, SB 2007, Studies of oxygen exchange on thin-film La_0.6Sr _0.4CoO_3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS). in ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X. 1 PART 1 edn, ECS Transactions, no. 1 PART 1, vol. 7, pp. 1089-1096, 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X, Japan, 07/6/3. https://doi.org/10.1149/1.2729206

@inproceedings{8e22e8a483c04e23adc920788188e11f,

title = "Studies of oxygen exchange on thin-film La0.6Sr 0.4CoO3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS)",

abstract = "In order to probe the mechanism of O2 reduction on mixed-conducting oxides, we have measured the nonlinear harmonic impedance response of a dense thin film electrode of La0.6Sr 0.4CoO3-δ (LSC-64). This approach reveals the nonlinear rate law governing O2 reduction/oxidation. Comparison to various models based on nonequilibrium thermodynamics suggests that O 2 reduction on LSC-64 is limited by dissociative adsorption. These results are discussed in the context of known equilibrium exchange kinetics and electronic structure. Implications for porous electrode kinetics are also discussed.",

author = "Wilson, {Jamie R.} and Maya Sase and Tatsuya Kawada and Adler, {Stuart B.}",

year = "2007",

month = dec,

day = "1",

doi = "10.1149/1.2729206",

language = "English",

isbn = "9781566775557",

series = "ECS Transactions",

number = "1 PART 1",

pages = "1089--1096",

booktitle = "ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X",

edition = "1 PART 1",

note = "10th International Symposium on Solid Oxide Fuel Cells, SOFC-X ; Conference date: 03-06-2007 Through 08-06-2007",

}

TY - GEN

T1 - Studies of oxygen exchange on thin-film La0.6Sr 0.4CoO3-δ using nonlinear electrochemical impedance spectroscopy (NLEIS)

AU - Wilson, Jamie R.

AU - Sase, Maya

AU - Kawada, Tatsuya

AU - Adler, Stuart B.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - In order to probe the mechanism of O2 reduction on mixed-conducting oxides, we have measured the nonlinear harmonic impedance response of a dense thin film electrode of La0.6Sr 0.4CoO3-δ (LSC-64). This approach reveals the nonlinear rate law governing O2 reduction/oxidation. Comparison to various models based on nonequilibrium thermodynamics suggests that O 2 reduction on LSC-64 is limited by dissociative adsorption. These results are discussed in the context of known equilibrium exchange kinetics and electronic structure. Implications for porous electrode kinetics are also discussed.

AB - In order to probe the mechanism of O2 reduction on mixed-conducting oxides, we have measured the nonlinear harmonic impedance response of a dense thin film electrode of La0.6Sr 0.4CoO3-δ (LSC-64). This approach reveals the nonlinear rate law governing O2 reduction/oxidation. Comparison to various models based on nonequilibrium thermodynamics suggests that O 2 reduction on LSC-64 is limited by dissociative adsorption. These results are discussed in the context of known equilibrium exchange kinetics and electronic structure. Implications for porous electrode kinetics are also discussed.

UR - http://www.scopus.com/inward/record.url?scp=45249124715&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=45249124715&partnerID=8YFLogxK

U2 - 10.1149/1.2729206

DO - 10.1149/1.2729206

M3 - Conference contribution

AN - SCOPUS:45249124715

SN - 9781566775557

SN - 9781566775540

T3 - ECS Transactions

SP - 1089

EP - 1096

BT - ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X

T2 - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X

Y2 - 3 June 2007 through 8 June 2007

ER -