Intermediate-Temperature SOFC Optimized for High Power Density Operation

Autor:	Norihisa Chitose, Taner Akbay, Kei Hosoi, Koji Hoshino, Gakuji Uozumi, Toru Inagaki, Hirouki Eto, Jun Akikusa, Satoru Yamasaki
Rok vydání:	2008
Předmět:	Materials science Nuclear engineering Intermediate temperature High power density
Zdroj:	ECS Transactions. 12:449-454
ISSN:	1938-6737 1938-5862
DOI:	10.1149/1.2921571
Popis:	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{degree sign}C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f0a74af677feeb4a5a78ab69ccd03439 https://doi.org/10.1149/1.2921571 Zobrazit plný text záznamu