TY - JOUR
T1 - Ru-based SOFC anodes
T2 - Preparation, performance, and durability
AU - Sugimoto, J.
AU - Futamura, S.
AU - Kawabata, T.
AU - Lyth, S. M.
AU - Shiratori, Y.
AU - Taniguchi, S.
AU - Sasaki, K.
N1 - Funding Information:
This work was supported by Japan Science and Technology Agency (JST) through its “Center of Innovation Science and Technology based Radical Innovation and Entrepreneurship Program (COI Program)”.
Publisher Copyright:
© 2017
PY - 2017/3/9
Y1 - 2017/3/9
N2 - Ru-based solid oxide fuel cell (SOFC) cermet anodes are presented. The preparation conditions of the Ru-based anodes are adjusted by preventing the sublimation of Ru-oxides at elevated temperatures by using an oxidizing atmosphere. SOFC single cells with zirconia-electrolyte and cathode are prepared, and the electrochemical performance is examined using realistic fuels containing low concentrations of higher hydrocarbons and trace sulfur impurities. The degradation rate is relatively high under simulated high fuel utilization operating conditions. However, under the operational condition near the fuel inlet of SOFC systems, the Ru-based anode satisfies 5000-h durability by using hydrocarbon-containing fuels. While a much higher durability is needed for stationary applications, the cells with the Ru-based anode may be applicable to e.g. automobile applications with hydrocarbon-containing fuels as high internal reforming activity, carbon deposition tolerance, and sulfur impurity tolerance have been verified.
AB - Ru-based solid oxide fuel cell (SOFC) cermet anodes are presented. The preparation conditions of the Ru-based anodes are adjusted by preventing the sublimation of Ru-oxides at elevated temperatures by using an oxidizing atmosphere. SOFC single cells with zirconia-electrolyte and cathode are prepared, and the electrochemical performance is examined using realistic fuels containing low concentrations of higher hydrocarbons and trace sulfur impurities. The degradation rate is relatively high under simulated high fuel utilization operating conditions. However, under the operational condition near the fuel inlet of SOFC systems, the Ru-based anode satisfies 5000-h durability by using hydrocarbon-containing fuels. While a much higher durability is needed for stationary applications, the cells with the Ru-based anode may be applicable to e.g. automobile applications with hydrocarbon-containing fuels as high internal reforming activity, carbon deposition tolerance, and sulfur impurity tolerance have been verified.
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U2 - 10.1016/j.ijhydene.2017.01.028
DO - 10.1016/j.ijhydene.2017.01.028
M3 - Article
AN - SCOPUS:85011094188
SN - 0360-3199
VL - 42
SP - 6950
EP - 6964
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 10
ER -
