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Electrical conductivity and structure of solid solutions formed in the La0.8Sr0.2MnO3–La0.95Ni0.6Fe0.4O3 system. / Konysheva, Elena; Irvine, John Thomas Sirr; Besmehn, Astrid.
In: Solid State Ionics, Vol. 179, No. 27-32, 30.09.2008, p. 1432-1435.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Electrical conductivity and structure of solid solutions formed in the La0.8Sr0.2MnO3–La0.95Ni0.6Fe0.4O3 system
AU - Konysheva, Elena
AU - Irvine, John Thomas Sirr
AU - Besmehn, Astrid
PY - 2008/9/30
Y1 - 2008/9/30
N2 - The transport properties and structure of the solid solutions formed in the (100-x) La0.8Sr0.2MnO3 (LSM)-x La0.95Ni0.6Fe0.4O3 (LNF) system were studied for the first time. The parent LSM and LNF perovskites and the solid solutions formed in the concentration ranges x<30 and 70 <= x <= 100 exhibited a rhombohedral structure. The unit cell volume of these solid solutions decreases with increasing LNF content. Formation of a new phase with an orthorhombic symmetry was observed in the concentration range 35 <= x <= 70. Lower transport properties of the (100-x) LSM-xLNF, 43 <= x <= 53, compositions as compared to the parent LSM and LNF perovskites can be explained with the formation of a new phase with orthorhombic structure. The (100-x)LSM-xLNF single phase perovskites possess metallic type of conductivity in a narrow concentration and temperature range.
AB - The transport properties and structure of the solid solutions formed in the (100-x) La0.8Sr0.2MnO3 (LSM)-x La0.95Ni0.6Fe0.4O3 (LNF) system were studied for the first time. The parent LSM and LNF perovskites and the solid solutions formed in the concentration ranges x<30 and 70 <= x <= 100 exhibited a rhombohedral structure. The unit cell volume of these solid solutions decreases with increasing LNF content. Formation of a new phase with an orthorhombic symmetry was observed in the concentration range 35 <= x <= 70. Lower transport properties of the (100-x) LSM-xLNF, 43 <= x <= 53, compositions as compared to the parent LSM and LNF perovskites can be explained with the formation of a new phase with orthorhombic structure. The (100-x)LSM-xLNF single phase perovskites possess metallic type of conductivity in a narrow concentration and temperature range.
KW - perovskites
KW - electrical conductivity
KW - solid oxide fuel cell
KW - semiconducting-metallic transition
KW - STRUCTURE REFINEMENT
KW - CATHODE MATERIAL
KW - PHASE
KW - STABILITY
KW - POWDER
UR - http://www.scopus.com/inward/record.url?scp=48349132004&partnerID=8YFLogxK
U2 - 10.1016/j.ssi.2008.01.021
DO - 10.1016/j.ssi.2008.01.021
M3 - Article
VL - 179
SP - 1432
EP - 1435
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
IS - 27-32
ER -
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Review article › peer-review
Research output: Contribution to journal › Review article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Review article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
ID: 423099