Relationships between mechanical stability of the anode supports and electrochemical performance of intermediate-temperature SOFCs

Autor:	M.N. Levin, S.V. Rabotkin, Yu. K. Nepochatov, O. Yu. Zadorozhnaya, Sergey Bredikhin, D.A. Agarkov, I.N. Burmistrov, E. A. Agarkova, Andrey A. Solovyev, D.V. Yalovenko
Rok vydání:	2021
Předmět:	Tape casting Materials science Hydrogen Mechanical Engineering Non-blocking I/O Oxide Sintering chemistry.chemical_element Condensed Matter Physics Microstructure Anode chemistry.chemical_compound chemistry Mechanics of Materials General Materials Science Cubic zirconia Composite material
Zdroj:	Materials Letters. 303:130516
ISSN:	0167-577X
Popis:	Mechanical strength and microstructure of the anode supports are among the most critical factors affecting the long-term stability and performance of the intermediate-temperature solid oxide fuel cells (IT-SOFCs). In this work, the anode supports made of Ni/NiO and 10 mol.% Sc2O3 and 1 mol.% Y2O3 co-stabilized zirconia (10Sc1YSZ) were fabricated by tape casting, followed by sintering and screen-printing of the anode functional layer of 10 mol.% Gd2O3 doped ceria (10GDC) and NiO. Then two dense solid-electrolyte layers, 8 mol.% Y2O3 stabilized zirconia (8YSZ) and 10GDC, were deposited by the reactive pulsed dual magnetron sputtering. Mechanical properties of as-sintered and reduced anode supports were estimated employing three-point bending technique. The power density of model anode-supported SOFCs, where mechanical stability of the support was kept after complete reduction in hydrogen, achieved 0.3 W/cm2 at 800°C and 0.6 V under air/hydrogen gradient.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d6180e1827c5f4a3a6fdebb9835533bd https://doi.org/10.1016/j.matlet.2021.130516 Zobrazit plný text záznamu Full Text from ScienceDirect