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- W1991007977 abstract "A solid oxide fuel cell (SOFC) operating in the temperature window of 600-700C has long been pursued by the worldwide SOFC developers for it has the greatest potential to be developed into a commercial product. Not only does the stability of materials improve significantly in this intermediate temperature range, but also the cost can be reduced while still maintaining high energy efficiency by integrating the endothermic reformer with the exothermic SOFC stack. To reduce the operating temperature of a SOFC, two parallel approaches have been practiced in the past: making the electrolyte layer thinner and searching for new electrolyte materials with higher oxide-ion conductivity. In this presentation, we report a mixed oxide-ion and carbonate-ion conductor (MOCC) having a total ionic conductivity of ~0.25 S/cm at 650C. The MOCC is comprised of a solid oxide phase and a liquid carbonate phase. The solid oxide phase serves as an oxide-ion conductor with a welldefined porous structure, in which the liquid carbonate-ion conductor is filled and immobilized. It is highly expected that this kind of MOCC finds potential applications in fuel cells and CO2 separation/capture. A systematic characterization of microstructures, phase compositions, thermal and electrical properties of the developed MOCC is described. Excellent electrical performance of a fuel cell based on a MOCC electrolyte operating at 650C is also presented with CO2 and O2 as well as air as the oxidants and H2 as the fuel. ∗ To whom correspondence should be addressed: kevin.huang@sc.edu Abstract #1156, 218th ECS Meeting, © 2010 The Electrochemical Society" @default.
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- W1991007977 date "2019-12-17" @default.
- W1991007977 modified "2023-09-22" @default.
- W1991007977 title "Mixed Oxide-Ion and Carbonate-Ion Conductors (MOCCs) as Electrolyte Materials for Solid Oxide Fuel Cells" @default.
- W1991007977 doi "https://doi.org/10.1149/1.3589188" @default.
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