TY - GEN
T1 - Cell performance of microtubular SOFCs with Sc-doped zirconia electrolyte under pressurized conditions
AU - Nishino, H.
AU - Hashimoto, S.
AU - Liu, Y.
AU - Asano, K.
AU - Mori, M.
AU - Funahashi, Y.
AU - Fujishiro, Y.
PY - 2007/12/1
Y1 - 2007/12/1
N2 - We fabricated anode-supported solid oxide fuel cell (SOFC) tubes with La0 6Sr0 4Co0 2Fe0 8O3 (LSCF)-Ce0 8Gd0 2O1 9 (CGO) cathode, CGO buffer layer, (ZrO2)0 89(Sc2O3) 0 1(CeO2)001 (ScSZ) electrolyte, and Ni-ScSZ anode. The power generation test of the SOFC was carried out at 0.1 to 0.7 MPa at 650°C Using a wet H2-N2 mixture of fuel and air, the maximum power density at 0.1 MPa was 0.68 W cm-2 (at 2.6 A cm-2, Uf = 78%). With increased operating pressure, the performance was improved, and the power density finally became over 1.48 W cm-2 (at 2.8 A cm, Uf= 86%). Current interruption measurements confirmed that both the polarization resistance and ohmic resistance were reduced under the pressurized condition.
AB - We fabricated anode-supported solid oxide fuel cell (SOFC) tubes with La0 6Sr0 4Co0 2Fe0 8O3 (LSCF)-Ce0 8Gd0 2O1 9 (CGO) cathode, CGO buffer layer, (ZrO2)0 89(Sc2O3) 0 1(CeO2)001 (ScSZ) electrolyte, and Ni-ScSZ anode. The power generation test of the SOFC was carried out at 0.1 to 0.7 MPa at 650°C Using a wet H2-N2 mixture of fuel and air, the maximum power density at 0.1 MPa was 0.68 W cm-2 (at 2.6 A cm-2, Uf = 78%). With increased operating pressure, the performance was improved, and the power density finally became over 1.48 W cm-2 (at 2.8 A cm, Uf= 86%). Current interruption measurements confirmed that both the polarization resistance and ohmic resistance were reduced under the pressurized condition.
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U2 - 10.1149/1.2729141
DO - 10.1149/1.2729141
M3 - Conference contribution
AN - SCOPUS:45249120172
SN - 9781566775557
SN - 9781566775540
T3 - ECS Transactions
SP - 597
EP - 601
BT - ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
T2 - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Y2 - 3 June 2007 through 8 June 2007
ER -