Electrochemical behaviour of (La1-xSrx)(s)Co1-yNiyO3-δ as porous SOFC cathodes

Publication: Research - peer-reviewJournal article – Annual report year: 2009

Standard

Electrochemical behaviour of (La1-xSrx)(s)Co1-yNiyO3-δ as porous SOFC cathodes. / Hjalmarsson, Per; Søgaard, Martin; Mogensen, Mogens Bjerg.

In: Solid State Ionics, Vol. 180, No. 26-27, 2009, p. 1395-1405.

Publication: Research - peer-reviewJournal article – Annual report year: 2009

Harvard

APA

CBE

MLA

Vancouver

Author

Hjalmarsson, Per; Søgaard, Martin; Mogensen, Mogens Bjerg / Electrochemical behaviour of (La1-xSrx)(s)Co1-yNiyO3-δ as porous SOFC cathodes.

In: Solid State Ionics, Vol. 180, No. 26-27, 2009, p. 1395-1405.

Publication: Research - peer-reviewJournal article – Annual report year: 2009

Bibtex

@article{e2a0651910334a048ff6f57f2338d10f,
title = "Electrochemical behaviour of (La1-xSrx)(s)Co1-yNiyO3-δ as porous SOFC cathodes",
keywords = "Solid Oxide Fuel Cells, Fuel Cells and hydrogen, Brændselsceller og brint",
publisher = "Elsevier BV North-Holland",
author = "Per Hjalmarsson and Martin Søgaard and Mogensen, {Mogens Bjerg}",
year = "2009",
doi = "10.1016/j.ssi.2009.08.007",
volume = "180",
number = "26-27",
pages = "1395--1405",
journal = "Solid State Ionics",
issn = "0167-2738",

}

RIS

TY - JOUR

T1 - Electrochemical behaviour of (La<sub>1-x</sub>Sr<sub>x</sub>)(s)Co<sub>1-y</sub>Ni<sub>y</sub>O<sub>3-δ</sub> as porous SOFC cathodes

A1 - Hjalmarsson,Per

A1 - Søgaard,Martin

A1 - Mogensen,Mogens Bjerg

AU - Hjalmarsson,Per

AU - Søgaard,Martin

AU - Mogensen,Mogens Bjerg

PB - Elsevier BV North-Holland

PY - 2009

Y1 - 2009

N2 - This paper shows that storage at room temperature and ambient atmosphere appears to affect the polarisation resistance significantly and RP decreased initially with storage time. This improvement was more pronounced when stored in moisturised air. The performance was, however, also found to decrease when stored for sufficiently long periods. The absolute values of the electrode response of these materials are very difficult to reproduce and the performance appears to be largely dependent on the manufacturing process of the powder or the electrode itself. In spite of this, the electrode behaviours exhibited similar patterns with respect to the dependence on T and PO2. An increase in polarisation resistance with time at SOFC operating conditions was observed, which was related exclusively to the electrode reaction kinetics and not to oxygen concentration polarisation. It was also found to be higher when measured in moisturised air.

AB - This paper shows that storage at room temperature and ambient atmosphere appears to affect the polarisation resistance significantly and RP decreased initially with storage time. This improvement was more pronounced when stored in moisturised air. The performance was, however, also found to decrease when stored for sufficiently long periods. The absolute values of the electrode response of these materials are very difficult to reproduce and the performance appears to be largely dependent on the manufacturing process of the powder or the electrode itself. In spite of this, the electrode behaviours exhibited similar patterns with respect to the dependence on T and PO2. An increase in polarisation resistance with time at SOFC operating conditions was observed, which was related exclusively to the electrode reaction kinetics and not to oxygen concentration polarisation. It was also found to be higher when measured in moisturised air.

KW - Solid Oxide Fuel Cells

KW - Fuel Cells and hydrogen

KW - Brændselsceller og brint

U2 - 10.1016/j.ssi.2009.08.007

DO - 10.1016/j.ssi.2009.08.007

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - 26-27

VL - 180

SP - 1395

EP - 1405

ER -