TY - JOUR
T1 - Effects of metal additives on power generating property of direct hydrocarbon type SOFC using LaGaO3 electrolyte
AU - Ishihara, T.
AU - Shin, T. H.
AU - Ida, S.
PY - 2013
Y1 - 2013
N2 - Composite oxides have been attracting great interest recently as alternative materials for SOFC anodes with the potential to overcome the serious deterioration in performance associated with the traditional Ni-based cermet; in particular, oxide based anodes show enhanced carbon coke and re-oxidation tolerance compared to present Ni-based cermets. In this study, the anodic performance of a (Ce,Mn,Fe)O2/(La,Sr)(Fe,Mn)O3 composite oxide with additions of catalytically active RuO2 nano particle was studied. Fairly high maximum power densities of 0.3 Wcm-2 (in H 2) and 1.5 Wcm-2 (in C3H8) at 800 °C were achieved for anodes with 10 wt% RuO2 addition. The cells showed stable power density, and negligible carbon formation, even after operation for more than 50 h at 1Acm-2. The improved power density was explained by decreased anodic overpotential and IR losses because of the improved electrical conductivity contributed by the RuO2 particles.
AB - Composite oxides have been attracting great interest recently as alternative materials for SOFC anodes with the potential to overcome the serious deterioration in performance associated with the traditional Ni-based cermet; in particular, oxide based anodes show enhanced carbon coke and re-oxidation tolerance compared to present Ni-based cermets. In this study, the anodic performance of a (Ce,Mn,Fe)O2/(La,Sr)(Fe,Mn)O3 composite oxide with additions of catalytically active RuO2 nano particle was studied. Fairly high maximum power densities of 0.3 Wcm-2 (in H 2) and 1.5 Wcm-2 (in C3H8) at 800 °C were achieved for anodes with 10 wt% RuO2 addition. The cells showed stable power density, and negligible carbon formation, even after operation for more than 50 h at 1Acm-2. The improved power density was explained by decreased anodic overpotential and IR losses because of the improved electrical conductivity contributed by the RuO2 particles.
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U2 - 10.1149/05701.1217ecst
DO - 10.1149/05701.1217ecst
M3 - Article
AN - SCOPUS:84905025101
SN - 1938-5862
VL - 57
SP - 1217
EP - 1223
JO - ECS Transactions
JF - ECS Transactions
IS - 1
ER -