TY - GEN
T1 - Intermediate-temperature SOFC optimized for high power density operation
AU - Uozumi, G.
AU - Eto, H.
AU - Akikusa, J.
AU - Chitose, N.
AU - Akbay, T.
AU - Hosbino, K.
AU - Hosoi, K.
AU - Inagaki, T.
AU - Yamasaki, S.
PY - 2008/11/17
Y1 - 2008/11/17
N2 - Optimization of the electrolyte and the fuel electrode has been performed to increase the output power density of intermediate-temperature solid oxide fuel cells (IT-SOFCs). In order to fabricate novel fuel-electrodes, Gadolinium doped ceria (GDC) powder, which incorporates nano-sized Ru or GDC particles, was developed. The heating rate at sintering of electrolyte was optimized to obtain fine-grained structure for thinner electrolyte by increasing the material strength. For enhanced conversion of methane into hydrogen inside the cell-stack, a fuel-side current collector containing a mixture of nickel and doped ceria (GDC or SDC) with Ru nanoparticles was developed. Maximum output power density of 0.55W/cm2 was obtained with fuel utilization of 75% at 750°C.
AB - Optimization of the electrolyte and the fuel electrode has been performed to increase the output power density of intermediate-temperature solid oxide fuel cells (IT-SOFCs). In order to fabricate novel fuel-electrodes, Gadolinium doped ceria (GDC) powder, which incorporates nano-sized Ru or GDC particles, was developed. The heating rate at sintering of electrolyte was optimized to obtain fine-grained structure for thinner electrolyte by increasing the material strength. For enhanced conversion of methane into hydrogen inside the cell-stack, a fuel-side current collector containing a mixture of nickel and doped ceria (GDC or SDC) with Ru nanoparticles was developed. Maximum output power density of 0.55W/cm2 was obtained with fuel utilization of 75% at 750°C.
UR - http://www.scopus.com/inward/record.url?scp=55849134151&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=55849134151&partnerID=8YFLogxK
U2 - 10.1149/1.2921571
DO - 10.1149/1.2921571
M3 - Conference contribution
AN - SCOPUS:55849134151
SN - 9781566776394
T3 - ECS Transactions
SP - 449
EP - 454
BT - ECS Transactions - Fuel Cell Seminar 2007
T2 - Fuel Cell Seminar 2007
Y2 - 15 October 2007 through 19 October 2007
ER -