TY - GEN
T1 - Surface composition and oxygen transport properties of LSCF
T2 - 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
AU - Druce, J.
AU - Téllez, H.
AU - Ishihara, T.
AU - Kilner, J. A.
N1 - Publisher Copyright:
© The Electrochemical Society.
PY - 2015
Y1 - 2015
N2 - Although the oxygen surface exchange reactions are of utmost importance for Solid Oxide Fuel Cells and Solid Oxide Electrolyser operation and performance, their specific mechanisms are rather poorly understood. One part of the puzzle is to determine the composition of the surfaces and interfaces participating in the reactions. Ion beam techniques constitute powerful probes of the surface composition, as well as the oxygen transport properties. Here, we use the well-known mixed conducting perovskite LSCF to illustrate how ion beam techniques, such as secondary ion mass spectrometry (SIMS) and low energy ion scattering (LEIS), can be used to study fundamental material properties (e.g. oxygen tracer diffusion and atomic rearrangements), as well as segregation and impurity migration processes in model electrode structures.
AB - Although the oxygen surface exchange reactions are of utmost importance for Solid Oxide Fuel Cells and Solid Oxide Electrolyser operation and performance, their specific mechanisms are rather poorly understood. One part of the puzzle is to determine the composition of the surfaces and interfaces participating in the reactions. Ion beam techniques constitute powerful probes of the surface composition, as well as the oxygen transport properties. Here, we use the well-known mixed conducting perovskite LSCF to illustrate how ion beam techniques, such as secondary ion mass spectrometry (SIMS) and low energy ion scattering (LEIS), can be used to study fundamental material properties (e.g. oxygen tracer diffusion and atomic rearrangements), as well as segregation and impurity migration processes in model electrode structures.
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U2 - 10.1149/06801.0557ecst
DO - 10.1149/06801.0557ecst
M3 - Conference contribution
AN - SCOPUS:84938774681
T3 - ECS Transactions
SP - 557
EP - 567
BT - Solid Oxide Fuel Cells 14, SOFC 2015
A2 - Eguchi, K.
A2 - Singhal, S. C.
PB - Electrochemical Society Inc.
Y2 - 26 July 2015 through 31 July 2015
ER -