Copper doped lanthanum strontium ferrite for reduced temperature solid oxide fuel cells

Greg Coffey, John Hardy, Olga Marina, Larry Pederson, Peter Rieke, Ed Thomsen

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Copper doped lanthanum strontium ferrite showed superior kinetics for the electro-reduction of oxygen. The generic formulation was La1-xSr xCu1-yFeyO3 (LSCuF) where x ranged from 0.2 to 0.3 and y varied from 0 to 0.4. Doping with copper improved the electrocatalytic activity compared with undoped material. In oxygen, the La 0.7Sr0.3Cu0.2Fe0.8O3 sample showed current densities approximately 2-3 times that of La 0.7Sr0.3FeO3 and 10 times that of La 0.8Sr0.2FeO3. This improvement was confirmed with cyclic voltammetric studies on half cells and on full fuel cell tests. Copper doped materials have unusual electrochemical characteristics and copper apparently undergoes a one electron reduction at overpotentials less than -0.1 V. This occurred only in air but not in oxygen.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalSolid State Ionics
Volume175
Issue number1-4
DOIs
Publication statusPublished - 30 Nov 2004
Externally publishedYes

Fingerprint

Lanthanum
Strontium
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
lanthanum
strontium
Ferrite
Copper
ferrites
copper
Oxygen
oxygen
Temperature
temperature
fuel cells
Fuel cells
Current density
Doping (additives)
current density
formulations

Keywords

  • Copper
  • Lanthanum strontium ferrite
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Coffey, G., Hardy, J., Marina, O., Pederson, L., Rieke, P., & Thomsen, E. (2004). Copper doped lanthanum strontium ferrite for reduced temperature solid oxide fuel cells. Solid State Ionics, 175(1-4), 73-78. https://doi.org/10.1016/j.ssi.2004.09.015

Copper doped lanthanum strontium ferrite for reduced temperature solid oxide fuel cells. / Coffey, Greg; Hardy, John; Marina, Olga; Pederson, Larry; Rieke, Peter; Thomsen, Ed.

In: Solid State Ionics, Vol. 175, No. 1-4, 30.11.2004, p. 73-78.

Research output: Contribution to journalArticle

Coffey, G, Hardy, J, Marina, O, Pederson, L, Rieke, P & Thomsen, E 2004, 'Copper doped lanthanum strontium ferrite for reduced temperature solid oxide fuel cells', Solid State Ionics, vol. 175, no. 1-4, pp. 73-78. https://doi.org/10.1016/j.ssi.2004.09.015
Coffey, Greg ; Hardy, John ; Marina, Olga ; Pederson, Larry ; Rieke, Peter ; Thomsen, Ed. / Copper doped lanthanum strontium ferrite for reduced temperature solid oxide fuel cells. In: Solid State Ionics. 2004 ; Vol. 175, No. 1-4. pp. 73-78.
@article{234052747bb24942a6af4bd7c395686a,
title = "Copper doped lanthanum strontium ferrite for reduced temperature solid oxide fuel cells",
abstract = "Copper doped lanthanum strontium ferrite showed superior kinetics for the electro-reduction of oxygen. The generic formulation was La1-xSr xCu1-yFeyO3 (LSCuF) where x ranged from 0.2 to 0.3 and y varied from 0 to 0.4. Doping with copper improved the electrocatalytic activity compared with undoped material. In oxygen, the La 0.7Sr0.3Cu0.2Fe0.8O3 sample showed current densities approximately 2-3 times that of La 0.7Sr0.3FeO3 and 10 times that of La 0.8Sr0.2FeO3. This improvement was confirmed with cyclic voltammetric studies on half cells and on full fuel cell tests. Copper doped materials have unusual electrochemical characteristics and copper apparently undergoes a one electron reduction at overpotentials less than -0.1 V. This occurred only in air but not in oxygen.",
keywords = "Copper, Lanthanum strontium ferrite, Solid oxide fuel cell",
author = "Greg Coffey and John Hardy and Olga Marina and Larry Pederson and Peter Rieke and Ed Thomsen",
year = "2004",
month = "11",
day = "30",
doi = "10.1016/j.ssi.2004.09.015",
language = "English",
volume = "175",
pages = "73--78",
journal = "Solid State Ionics",
issn = "0167-2738",
publisher = "Elsevier",
number = "1-4",

}

TY - JOUR

T1 - Copper doped lanthanum strontium ferrite for reduced temperature solid oxide fuel cells

AU - Coffey, Greg

AU - Hardy, John

AU - Marina, Olga

AU - Pederson, Larry

AU - Rieke, Peter

AU - Thomsen, Ed

PY - 2004/11/30

Y1 - 2004/11/30

N2 - Copper doped lanthanum strontium ferrite showed superior kinetics for the electro-reduction of oxygen. The generic formulation was La1-xSr xCu1-yFeyO3 (LSCuF) where x ranged from 0.2 to 0.3 and y varied from 0 to 0.4. Doping with copper improved the electrocatalytic activity compared with undoped material. In oxygen, the La 0.7Sr0.3Cu0.2Fe0.8O3 sample showed current densities approximately 2-3 times that of La 0.7Sr0.3FeO3 and 10 times that of La 0.8Sr0.2FeO3. This improvement was confirmed with cyclic voltammetric studies on half cells and on full fuel cell tests. Copper doped materials have unusual electrochemical characteristics and copper apparently undergoes a one electron reduction at overpotentials less than -0.1 V. This occurred only in air but not in oxygen.

AB - Copper doped lanthanum strontium ferrite showed superior kinetics for the electro-reduction of oxygen. The generic formulation was La1-xSr xCu1-yFeyO3 (LSCuF) where x ranged from 0.2 to 0.3 and y varied from 0 to 0.4. Doping with copper improved the electrocatalytic activity compared with undoped material. In oxygen, the La 0.7Sr0.3Cu0.2Fe0.8O3 sample showed current densities approximately 2-3 times that of La 0.7Sr0.3FeO3 and 10 times that of La 0.8Sr0.2FeO3. This improvement was confirmed with cyclic voltammetric studies on half cells and on full fuel cell tests. Copper doped materials have unusual electrochemical characteristics and copper apparently undergoes a one electron reduction at overpotentials less than -0.1 V. This occurred only in air but not in oxygen.

KW - Copper

KW - Lanthanum strontium ferrite

KW - Solid oxide fuel cell

UR - http://www.scopus.com/inward/record.url?scp=10044228570&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10044228570&partnerID=8YFLogxK

U2 - 10.1016/j.ssi.2004.09.015

DO - 10.1016/j.ssi.2004.09.015

M3 - Article

AN - SCOPUS:10044228570

VL - 175

SP - 73

EP - 78

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - 1-4

ER -