Electrochemical performance and stability of nano-particulate and bi-continuous La1-XSrXCoO3 and Ce0.9Gd0.1O1.95 composite electrodes
Publication: Research - peer-review › Journal article – Annual report year: 2012
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Electrochemical performance and stability of nano-particulate and bi-continuous La1-XSrXCoO3 and Ce0.9Gd0.1O1.95 composite electrodes. / Hjalmarsson, Per; Hallinder, Jonathan; Mogensen, Mogens Bjerg.
In: Journal of Solid State Electrochemistry, Vol. 16, No. 8, 2012, p. 2759-2766.Publication: Research - peer-review › Journal article – Annual report year: 2012
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T1 - Electrochemical performance and stability of nano-particulate and bi-continuous La<sub>1-X</sub>Sr<sub>X</sub>CoO<sub>3</sub> and Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub> composite electrodes
A1 - Hjalmarsson,Per
A1 - Hallinder,Jonathan
A1 - Mogensen,Mogens Bjerg
AU - Hjalmarsson,Per
AU - Hallinder,Jonathan
AU - Mogensen,Mogens Bjerg
PB - Springer
PY - 2012
Y1 - 2012
N2 - A bi-continuous porous cathode consisting of nano-particles of strontium substituted lanthanum cobaltite (LSC) covering the surface of a Ce0.9Gd0.1O1.95 (CGO10) backbone has been produced. The polarization resistance (R (P)) of this cathode was measured to similar to 35 m Omega cm(2) at 650 A degrees C. The area-specific resistance at 650 A degrees C (ASR) when applied onto an anode supported cell (ASC) was found to increase from 540 to 730 m Omega cm(2) when subjected to a thermal cycle to 850 A degrees C. This effect was attributed to particles coarsening but also to a reaction with the electrolyte. The results imply that a CGO10 barrier is required for this type of nano-structured cathode.
AB - A bi-continuous porous cathode consisting of nano-particles of strontium substituted lanthanum cobaltite (LSC) covering the surface of a Ce0.9Gd0.1O1.95 (CGO10) backbone has been produced. The polarization resistance (R (P)) of this cathode was measured to similar to 35 m Omega cm(2) at 650 A degrees C. The area-specific resistance at 650 A degrees C (ASR) when applied onto an anode supported cell (ASC) was found to increase from 540 to 730 m Omega cm(2) when subjected to a thermal cycle to 850 A degrees C. This effect was attributed to particles coarsening but also to a reaction with the electrolyte. The results imply that a CGO10 barrier is required for this type of nano-structured cathode.
KW - ELECTROCHEMISTRY
KW - OXIDE FUEL-CELLS
KW - GD-DOPED CERIA
KW - IMPEDANCE SPECTROSCOPY
KW - OXYGEN REDUCTION
KW - LA1-XSRXMN1-YCOYO3+/-DELTA PEROVSKITES
KW - SURFACE EXCHANGE
KW - THIN-FILM
KW - CATHODES
KW - INFILTRATION
KW - DIFFUSION
U2 - 10.1007/s10008-012-1699-2
DO - 10.1007/s10008-012-1699-2
JO - Journal of Solid State Electrochemistry
JF - Journal of Solid State Electrochemistry
SN - 1432-8488
IS - 8
VL - 16
SP - 2759
EP - 2766
ER -