2013
DOI: 10.1016/j.jpowsour.2013.03.012
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Interaction of (La1−xSrx)nCo1−yFeyO3−δ cathodes and AISI 441 interconnect for solid oxide fuel cells

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Cited by 18 publications
(12 citation statements)
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“…The low concentration of Co is obvious, regardless of the thermal treatment atmosphere. This indicates the instability of Co in the LSCF6428 cathode, consistent with other studies [39,40]. Cr at the interface of the cathode/electrolyte is a result of diffusion from the interconnect and reaction at the triple phase boundaries.…”
Section: Fundamental Processsupporting
confidence: 90%
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“…The low concentration of Co is obvious, regardless of the thermal treatment atmosphere. This indicates the instability of Co in the LSCF6428 cathode, consistent with other studies [39,40]. Cr at the interface of the cathode/electrolyte is a result of diffusion from the interconnect and reaction at the triple phase boundaries.…”
Section: Fundamental Processsupporting
confidence: 90%
“…This technique has been used by others and explained before [34][35][36][37][38][39][40]. In the circuit, R Ω is the ohmic resistance from the cathode, the Pt wires, the Pd paste, the contact between the interconnect and the cathode, and the electrolyte; however, the major contribution and especially the changes are from the cathode.…”
Section: Electrochemical Behaviorsmentioning
confidence: 99%
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“…This is consistent with the SEM results, indicating that Cr deposition on the LSCF surface is through interaction with Sr rather than with La, Co, or Fe. Our previous work has also demonstrated that these large particles are SrCrO 4 and they mainly reside on the surface of the cathode [31,32]. The formation of the poorly conductive SrCrO 4 (1.8 Â 10 À5 and 1.8 Â 10 À4 SÁcm À1 at 700 C and 800 C respectively [33]) increases the electrode ohmic resistance by blocking the electrical conductivity path.…”
Section: Microstructuresmentioning
confidence: 91%
“…Moreover, it has good compatibility with LSCF [15,30,31]. In order to decrease the effect of the electrolyte, here we use the same electrolyte for all the three cathode materials.…”
Section: Introductionmentioning
confidence: 99%