Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells

Debanjan Das; Derek M. Hall; Serguei N. Lvov

doi:10.1149/07207.0173ecst

Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells

Debanjan Das, Derek M. Hall, Serguei N. Lvov

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

4 Scopus citations

Abstract

Electrochemical frequency modulation (EFM) was applied for the first time to solid oxide fuel cells (SOFC) to obtain effective exchange current density and transfer coefficient values. Values obtained from EFM data were compared to values obtained from electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV). A kinetic model based on Butler-Volmer (B-V) equation was used as the basis for the analysis. It was found that the values obtained via EFM were in good agreement with EIS and Tafel analyses. The obtained values for a cell within a SOFC stack closely ranged from 11-16 mA cm^-2 for effective exchange current density and 0.88-1.3 for transfer coefficient with good repeatability.

Original language	English (US)
Title of host publication	Ionic and Mixed Conducting Ceramics 10
Editors	M. B. Mogensen, T. Kawada, T. M. Gur, X. D. Zhou, A. Manivannan
Publisher	Electrochemical Society Inc.
Pages	173-181
Number of pages	9
Edition	7
ISBN (Electronic)	9781607687177
DOIs	https://doi.org/10.1149/07207.0173ecst
State	Published - 2016
Event	Symposium on Ionic and Mixed Conducting Ceramics 10 - 229th ECS Meeting - San Diego, United States Duration: May 29 2016 → Jun 2 2016

Publication series

Name	ECS Transactions
Number	7
Volume	72
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Other

Other	Symposium on Ionic and Mixed Conducting Ceramics 10 - 229th ECS Meeting
Country/Territory	United States
City	San Diego
Period	5/29/16 → 6/2/16

All Science Journal Classification (ASJC) codes

General Engineering

Access to Document

10.1149/07207.0173ecst

Cite this

Das, D., Hall, D. M., & Lvov, S. N. (2016). Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells. In M. B. Mogensen, T. Kawada, T. M. Gur, X. D. Zhou, & A. Manivannan (Eds.), Ionic and Mixed Conducting Ceramics 10 (7 ed., pp. 173-181). (ECS Transactions; Vol. 72, No. 7). Electrochemical Society Inc.. https://doi.org/10.1149/07207.0173ecst

@inproceedings{9a492b589a17478088e9310d4c83f6a7,

title = "Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells",

abstract = "Electrochemical frequency modulation (EFM) was applied for the first time to solid oxide fuel cells (SOFC) to obtain effective exchange current density and transfer coefficient values. Values obtained from EFM data were compared to values obtained from electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV). A kinetic model based on Butler-Volmer (B-V) equation was used as the basis for the analysis. It was found that the values obtained via EFM were in good agreement with EIS and Tafel analyses. The obtained values for a cell within a SOFC stack closely ranged from 11-16 mA cm-2 for effective exchange current density and 0.88-1.3 for transfer coefficient with good repeatability.",

author = "Debanjan Das and Hall, {Derek M.} and Lvov, {Serguei N.}",

note = "Publisher Copyright: {\textcopyright}The Electrochemical Society.; Symposium on Ionic and Mixed Conducting Ceramics 10 - 229th ECS Meeting ; Conference date: 29-05-2016 Through 02-06-2016",

year = "2016",

doi = "10.1149/07207.0173ecst",

language = "English (US)",

series = "ECS Transactions",

publisher = "Electrochemical Society Inc.",

number = "7",

pages = "173--181",

editor = "Mogensen, {M. B.} and T. Kawada and Gur, {T. M.} and Zhou, {X. D.} and A. Manivannan",

booktitle = "Ionic and Mixed Conducting Ceramics 10",

edition = "7",

}

Das, D, Hall, DM & Lvov, SN 2016, Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells. in MB Mogensen, T Kawada, TM Gur, XD Zhou & A Manivannan (eds), Ionic and Mixed Conducting Ceramics 10. 7 edn, ECS Transactions, no. 7, vol. 72, Electrochemical Society Inc., pp. 173-181, Symposium on Ionic and Mixed Conducting Ceramics 10 - 229th ECS Meeting, San Diego, United States, 5/29/16. https://doi.org/10.1149/07207.0173ecst

Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells. / Das, Debanjan; Hall, Derek M.; Lvov, Serguei N.
Ionic and Mixed Conducting Ceramics 10. ed. / M. B. Mogensen; T. Kawada; T. M. Gur; X. D. Zhou; A. Manivannan. 7. ed. Electrochemical Society Inc., 2016. p. 173-181 (ECS Transactions; Vol. 72, No. 7).

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

TY - GEN

T1 - Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells

AU - Das, Debanjan

AU - Hall, Derek M.

AU - Lvov, Serguei N.

N1 - Publisher Copyright: ©The Electrochemical Society.

PY - 2016

Y1 - 2016

N2 - Electrochemical frequency modulation (EFM) was applied for the first time to solid oxide fuel cells (SOFC) to obtain effective exchange current density and transfer coefficient values. Values obtained from EFM data were compared to values obtained from electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV). A kinetic model based on Butler-Volmer (B-V) equation was used as the basis for the analysis. It was found that the values obtained via EFM were in good agreement with EIS and Tafel analyses. The obtained values for a cell within a SOFC stack closely ranged from 11-16 mA cm-2 for effective exchange current density and 0.88-1.3 for transfer coefficient with good repeatability.

AB - Electrochemical frequency modulation (EFM) was applied for the first time to solid oxide fuel cells (SOFC) to obtain effective exchange current density and transfer coefficient values. Values obtained from EFM data were compared to values obtained from electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV). A kinetic model based on Butler-Volmer (B-V) equation was used as the basis for the analysis. It was found that the values obtained via EFM were in good agreement with EIS and Tafel analyses. The obtained values for a cell within a SOFC stack closely ranged from 11-16 mA cm-2 for effective exchange current density and 0.88-1.3 for transfer coefficient with good repeatability.

UR - http://www.scopus.com/inward/record.url?scp=85010641663&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85010641663&partnerID=8YFLogxK

U2 - 10.1149/07207.0173ecst

DO - 10.1149/07207.0173ecst

M3 - Conference contribution

AN - SCOPUS:85010641663

T3 - ECS Transactions

SP - 173

EP - 181

BT - Ionic and Mixed Conducting Ceramics 10

A2 - Mogensen, M. B.

A2 - Kawada, T.

A2 - Gur, T. M.

A2 - Zhou, X. D.

A2 - Manivannan, A.

PB - Electrochemical Society Inc.

T2 - Symposium on Ionic and Mixed Conducting Ceramics 10 - 229th ECS Meeting

Y2 - 29 May 2016 through 2 June 2016

ER -

Electrochemical frequency modulation for estimating exchange current density in solid oxide fuel cells

Abstract

Publication series

Other

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this